2010 Mercedes-benz R Class Owners Manual

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function is to be enabled or disabled. With this function set to On, the system will alert you when recognizing a stationary obstacle or a 251_AKB; 4; 52, en-US d2ureepe, 2009-03-23T09:22:52+01:00 - Seite 139 Version: 2.11.8.1 Control system 139 slower vehicle moving in your vehicle’s path and the danger of a collision exists, even when the Distronic is switched off. X Press button V or U repeatedly until the message Distance Warning appears in the multifunction display. The selection marker is on the current setting. RDistance to empty (Y page 140) RCurrent fuel consumption (Y page 140) When you enter the Trip computer menu, you will always see the fuel consumption statistics since start first. Fuel consumption statistics since start X Press button U or V repeatedly until the message From Start appears in the multifunction display. X Press button W or X to switch the distance warning function On or Off. : Symbol for activated distance warning function If the distance warning function is switched on you will see the symbol Ä in the Standard display. When the distance warning function is switched off the symbol Ä will not appear. Trip computer menu Use the Trip computer menu to call up statistical data on your vehicle. The following information is available: RFuel consumption statistics since start (Y page 139) RFuel consumption statistics since last reset (Y page 139) RResetting fuel consumption statistics (Y page 140) : Distance driven since start ; Time elapsed since start = Average speed since start ? Average fuel consumption since start All statistics stored since the last engine start will be reset approximately 4 hours after the SmartKey in the starter switch is turned to position 0 or removed from the starter switch. Resetting will not occur if you turn the SmartKey back to position 1 or 2 within this time period. Fuel consumption statistics since last reset X Press button U or V repeatedly until the message From Start appears in the multifunction display. X Press button & or * repeatedly until the message From Reset appears in the multifunction display. 251_AKB; 4; 52, en-US d2ureepe, 140 Control system 2009-03-23T09:22:52+01:00 - Seite 140 Version: 2.11.8.1 : Distance driven since last reset ; Time elapsed since last reset = Average speed since last reset ? Average fuel consumption since last reset Resetting fuel consumption statistics X Press button U or V repeatedly until the message From Start appears in the multifunction display. X Press button & or * repeatedly until the reading that you want to reset appears in the multifunction display. X Press and hold the reset button in the instrument cluster until the respective values are reset to 0. The fuel consumption statistics reset automatically to 0 after 99 999 miles or 9 999 hours, whichever occurs first. Distance to empty X Press button U or V repeatedly until the message From Start appears in the multifunction display. X Press button & or * repeatedly until the message Range: appears in the multifunction display. The calculated remaining driving range based on the current fuel tank level appears in the multifunction display. If only very little fuel is left in the tank, a vehicle at the fuel pump C appears instead of the remaining driving range. Current fuel consumption X Press button U or V repeatedly until the message From Start appears in the multifunction display. X Press button & or * repeatedly until the message Consumption appears in the multifunction display. The current fuel consumption appears in the multifunction display. Telephone menu G Warning! A driver’s attention to the road must always be his/her primary focus when driving. For your safety and the safety of others, we recommend that you pull over to a safe location and stop before placing or taking a telephone call. If you choose to use the telephone while driving, please use the hands- free device and only use the telephone when weather, road and traffic conditions permit. Some jurisdictions prohibit the driver from using a mobile phone while driving a vehicle. Bear in mind that at a speed of just 30 mph (approximately 50 km/h), your vehicle is covering a distance of 44 feet (approximately 14 m) every second. You can connect your telephone to the COMAND system via Bluetooth®, see 251_AKB; 4; 52, en-US d2ureepe, 2009-03-23T09:22:52+01:00 - Seite 141 Version: 2.11.8.1 separate COMAND system operating instructions. X Switch on the COMAND system. Refer to separate COMAND system operating instructions. X Press button U or V repeatedly until the message TEL appears in the multifunction display. One of the following messages will appear in the multifunction display: RNo Service: No network is available. RBluetooth Ready: The telephone has not been connected to the COMAND system via Bluetooth® yet. X Connect the telephone to the COMAND system via Bluetooth®. RReady or name of the network provider (if available): The telephone has found a network and is ready for use. You can operate it using the control system. Answering a call When your telephone is ready to receive calls, you can answer a call at any time. In the multifunction display you will then see the following message, or if available, the caller ID (number or name): X Press button 6. You have answered the call. Ending a call or rejecting an incoming call X Press button ~. Control system 141 Dialing a number from the phone book When your telephone is ready to receive calls, you may select and dial a number from the phone book at any time. X Press button U or V repeatedly until the message TEL appears in the multifunction display. X Press button & or * repeatedly until the desired name appears in the multifunction display. If you press and hold button & or * for longer than 1 second, the system scrolls rapidly through the list of names until you release the button again. The stored names are displayed in alphabetical order. : Selected name from the phone book X Press button 6. The control system dials the selected phone number. If the connection is successful and this feature is supported by your network provider, the name of the party (if stored in your phone book) you are calling will appear in the multifunction display. The control system stores the dialed number in the redial memory. or X Press button ~ if you do not want to make the call. 251_AKB; 4; 52, en-US d2ureepe, 142 Driving systems Redialing The control system stores the most recently dialed phone numbers. This eliminates the need to search through your entire phone book. X Press button U or V repeatedly until the message TEL appears in the multifunction display. X Press button 6. The first number in the redial memory appears in the multifunction display. X Press button & or * repeatedly until the desired number or name appears in the multifunction display. X Press button 6. The control system dials the selected phone number. Driving systems Introduction This section describes the following driving systems of your vehicle: RCruise control RDistronic RDistance warning function (only available with Distronic) RHill-start assist system RRear-axle level control RAIRMATIC RAll-wheel drive (4MATIC) RParktronic system RRear view camera The driving safety systems ABS, BAS, EBP and ESP® are described in the “Safety and security” section (Y page 63). 2009-03-23T09:22:52+01:00 - Seite 142 Version: 2.11.8.1 Cruise control The cruise control maintains the speed you set for your vehicle automatically. The use of the cruise control is recommended for driving at a constant speed for extended periods of time. The currently set speed or last set speed (“Resume” function) appears in the status indicator of the multifunction display: RUSA only: e.g. Cruise 55 Miles RCanada only: e.g. ¯ 90 Km/h G Warning! The cruise control is a convenience system designed to assist the driver during vehicle operation. The driver is and must always remain responsible for the vehicle’s speed and for safe brake operation. Only use the cruise control if the road, traffic, and weather conditions make it advisable to travel at a constant speed. RThe use of the cruise control can be dangerous on winding roads or in heavy traffic because conditions do not allow safe driving at a constant speed. RThe use of the cruise control can be dangerous on slippery roads. Rapid changes in tire traction can result in wheel spin and loss of control. RDeactivate the cruise control when driving in fog. The “Resume” function should only be operated if the driver is fully aware of the previously set speed and wishes to resume this particular preset speed. 251_AKB; 4; 52, en-US d2ureepe, 2009-03-23T09:22:52+01:00 - Seite 143 Version: 2.11.8.1 G Warning! When the cruise control is braking, the brake pedal is retracted (i.e. depressed automatically). The pedals’ range of motion must not be impeded by any obstacles: RDo not place any objects in the footwell. RMake sure that the floormats and carpets are securely in place. RDo not rest your foot underneath the brake pedal, as it could otherwise be trapped. You could otherwise cause an accident and injure yourself and/or others. : Setting current or higher speed ; Setting current or lower speed = Canceling the cruise control ? Activating the cruise control or resuming to last set speed Activating cruise control You can activate the cruise control at a vehicle speed above 20 mph (30 km/h). You cannot activate the cruise control Rwhen you brake Rwhen you have engaged the parking brake Rwhen the automatic transmission is in park position P, reverse gear R, or neutral position N Rthe ESP® is switched off or has switched off due to a malfunction Driving systems 143 The vehicle speed displayed in the speedometer can briefly vary from the speed setting for the cruise control system. Setting current speed X Accelerate or decelerate to the desired speed. X Briefly lift the cruise control lever in direction of arrow : or press in direction of arrow ;. X Remove your foot from the accelerator pedal. i On uphill grades, the cruise control may not be able to maintain the set speed. Once the grade eases, the set speed will be resumed. On downhill grades, the cruise control maintains the set speed by braking with the vehicle’s brake system. In addition, on longer downhill grades the automatic transmission will downshift automatically. Canceling cruise control X Depress the brake pedal. or X Briefly push the cruise control lever in direction of arrow =. The last set speed is stored for later use. The last stored speed is deleted from memory when the engine is turned off. The cruise control switches off automatically when you depress the brake pedal or you engage the parking brake. The cruise control switches off automatically and an acoustic warning will sound when Rthe vehicle speed falls below 20 mph (30 km/h) Rthe ESP® is in operation Rthe ESP® is switched off with the ESP® switch 251_AKB; 4; 52, en-US d2ureepe, 144 Driving systems Rthe ESP® has switched off due to a malfunction Ryou shift the automatic transmission into neutral position N while driving Observe additional messages in the multifunction display that may appear. Depressing the accelerator pedal does not deactivate the cruise control. After a brief acceleration (e.g. for passing), the cruise control will resume the last set speed. Changing the set speed G Warning! Keep in mind that it may take a brief moment until the vehicle has made the necessary adjustments. Increase or decrease the set vehicle speed to a value that the prevailing road conditions and legal speed limits permit. Otherwise, sudden and unexpected acceleration or deceleration of the vehicle could cause an accident and/ or serious injury to you and others. You can increase or decrease the set speed in 1 mph (Canada: 1 km/h) increments or in 5 mph (Canada: 10 km/h) increments. When you use the cruise control lever to decelerate, the brake system will brake the vehicle automatically if the engine’s braking power does not brake the vehicle sufficiently. Adjustment in 1 mph (Canada: 1 km/h) increments i The set speed value is increased or decreased in 1 mph (Canada: 1 km/h) increments each time you lift or press the cruise control lever up or down to the resistance point. 2009-03-23T09:22:52+01:00 - Seite 144 Version: 2.11.8.1 X Increasing: Briefly lift the cruise control lever up to the resistance point in direction of arrow :. X Decreasing: Briefly press the cruise control lever down to the resistance point in direction of arrow ;. X Release the cruise control lever. The new speed is set and the vehicle will accelerate or decelerate. Adjustment in 5 mph (Canada: 10 km/h) increments i The set speed value is increased or decreased in 5 mph (Canada: 10 km/h) increments each time you lift or press the cruise control lever up or down past the resistance point. X Increasing: Briefly lift the cruise control lever up past the resistance point in direction of arrow :. X Decreasing: Briefly press the cruise control lever down past the resistance point in direction of arrow ;. X Release the cruise control lever. The new speed is set and the vehicle will accelerate or decelerate. Keep in mind that it may take a brief moment until the vehicle has reached the set speed. Setting stored speed (Resume function) G Warning! The set speed stored in memory should only be set again if prevailing road conditions and legal speed limits permit. Possible acceleration or deceleration differences arising from returning to the preset speed could cause an accident and/or serious injury to you and others. 251_AKB; 4; 52, en-US d2ureepe, 2009-03-23T09:22:52+01:00 - Seite 145 Version: 2.11.8.1 X Briefly pull the cruise control lever in direction of arrow ?. If no speed is stored, the current speed is set and stored. X Remove your foot from the accelerator pedal. The last stored speed is deleted from memory when the engine is turned off. Distronic Safety notes When activated, the Distronic adaptive cruise control increases the driving convenience afforded by the cruise control while traveling on expressways and other major roadways. RIf the Distronic distance sensor detects a slower moving vehicle directly ahead, your vehicle speed will be reduced so that you follow that vehicle at your preset following distance. RIf there is no vehicle directly ahead of you, the Distronic will function in the same way as standard cruise control (Y page 142). G Warning! The Distronic requires familiarity with its operational characteristics. We strongly recommend that you review the following information carefully before operating the system. G Warning! When the Distronic is braking, the brake pedal is retracted (i.e. depressed automatically). The pedals’ range of motion must not be impeded by any obstacles: RDo not place any objects in the footwell. RMake sure that the floormats and carpets are securely in place. RDo not rest your foot underneath the brake pedal, as it could otherwise be trapped. Driving systems 145 You could otherwise cause an accident and injure yourself and/or others. G Warning! The Distronic is a convenience system. Its speed adjustment reduction capability is intended to make cruise control more effective and usable when traffic speeds vary. It is not however, intended to, nor does it, replace the need for extreme care. The responsibility for the vehicle’s speed, distance to the preceding vehicle and, most importantly, brake operation to ensure a safe stopping distance, always remains with the driver. The Distronic cannot take street and traffic conditions into account. Complex driving situations are not always fully recognized by the Distronic. This could result in wrong or missing distance warnings. G Warning! The Distronic adaptive cruise control is not a substitute for active driving involvement. It does not react to pedestrians or on stationary objects, nor does it recognize or predict the lane curvature or the movement of preceding vehicles. The Distronic can only apply 20% of the maximum braking power of the vehicle. It is the driver’s responsibility at all times to be attentive to the road, weather and traffic conditions. Additionally, the driver must provide the steering, braking and other driving inputs necessary to remain in control of the vehicle. High-frequency sources such as toll stations, speed measuring systems etc. can cause the Distronic system to malfunction. G Warning! The Distronic cannot take road and traffic conditions into account. Only use the Distronic if the road, weather and traffic conditions make it advisable to travel at a constant speed. 251_AKB; 4; 52, en-US d2ureepe, 146 Driving systems G Warning! Use of the Distronic can be dangerous on slippery roads. Rapid changes in tire traction can result in wheel spin and loss of control. The Distronic does not function in adverse sight and distance conditions. Do not use the Distronic during conditions of fog, heavy rain, snow or sleet. G Warning! The Distronic cannot take weather conditions into account. Switch off the Distronic or do not switch it on if: Rroads are slippery or covered with snow or ice. The wheels could lose traction while braking or accelerating, and the vehicle could skid. Rthe Distronic system sensor cover is dirty or visibility is diminished due to snow, rain or fog, for example. The distance control system functionality could be impaired. Always pay attention to surrounding traffic conditions even while the Distronic is switched on. Otherwise, you may not be able to recognize dangerous situations until it is too late. This could cause an accident in which you and/or others could be injured. G Warning! The “Resume” function should only be operated if the driver is fully aware of the previously set speed and wishes to resume this particular preset speed. G Warning! Close attention to road and traffic conditions is imperative at all times, regardless of whether or not the Distronic is activated. Use of the Distronic can be dangerous on winding roads or in heavy traffic because conditions do not allow safe driving at a constant speed. The Distronic will not react to stationary objects in the roadway (e.g. a stopped vehicle in a traffic jam or a disabled vehicle). The 2009-03-23T09:22:52+01:00 - Seite 146 Version: 2.11.8.1 Distronic will also not respond to oncoming vehicles. Switch off the Distronic: Rwhen changing from the left to the right lane if vehicles are moving more slowly in the left lane Rwhen entering a turn lane or highway off ramp Rin complex driving situations, such as in highway construction zones In these situations, the Distronic will continue to maintain the set speed unless deactivated. The Distronic is designed and intended only to maintain a set speed and keep a set distance from moving objects in front of it. i This device has been approved by the FCC as a “Vehicular Radar System”. The radar sensor is intended for use in an automotive radar system only. Removal, tampering, or altering of the device will void any warranties, and is not permitted by the FCC. Do not tamper with, alter, or use in any non-approved way. Any unauthorized modification to this device could void the user’s authority to operate the equipment. Distronic displays in the speedometer When the Distronic is activated, one or two cruise control speed segments come on around set speed :. 251_AKB; 4; 52, en-US d2ureepe, 2009-03-23T09:22:52+01:00 - Seite 147 Version: 2.11.8.1 The vehicle speed displayed on the speedometer can briefly vary from the speed setting on the Distronic system. When the Distronic detects a vehicle directly ahead, the cruise control speed segments ; appear in the speedometer. These segments represent the difference between the set speed of your vehicle : and the speed of the preceding vehicle =. If the Distronic calculates that there is a danger of collision, the distance warning lamp · in the instrument cluster comes on and an intermittent warning sounds. X Immediately apply the brakes to avoid a collision. Under no circumstances should the driver await the intermittent warning sound before braking. The intermittent warning sound ceases and the distance warning lamp · goes out when the necessary distance to the vehicle ahead is established again. G Warning! An intermittent warning sounds and the distance warning lamp · in the instrument cluster is illuminated if the Distronic system calculates that the distance to the vehicle ahead and your vehicle’s current speed indicate that the Distronic will not be capable of slowing the vehicle sufficiently to maintain the preset following distance, which creates a danger of a collision. Driving systems 147 Immediately brake the vehicle to increase your distance to the preceding vehicle. The warning sound is intended as a final caution in which you should intercede with your own braking inputs to avoid a potentially dangerous situation. Do not wait for the operation of the warning signal to intercede with your own braking. This will result in potentially dangerous emergency braking which will not always result in an impact being avoided. Tailgating increases the risk of an accident. G Warning! The Distronic brakes your vehicle with a maximum deceleration of 6.5 ft/s2 (2 m/s2). This corresponds to approximately 20% of the maximum deceleration of your vehicle. You must also apply the brakes yourself to avoid a collision. The Distronic brakes the vehicle in an effort to restore the preset distance or to maintain the set speed. The brake pedal is automatically applied as this happens which results in the brake pedal moving Keep driver’s foot area clear at all times, including the area under the brake pedal. Objects stored in this area may impair pedal movement which could interfere with the braking ability of the Distronic system. Do not place your foot under the brake pedal – your foot could become caught. Distronic menu in the control system Use the DISTRONIC menu to display the current settings for your Distronic system. The information shown in the multifunction display depends on whether the Distronic system and/or the distance warning function are activated or deactivated. i To activate or deactivate the Distronic system, see (Y page 148) or see (Y page 150). To activate or deactivate the Distance warning function, see (Y page 138). 251_AKB; 4; 52, en-US d2ureepe, 148 Driving systems 2009-03-23T09:22:52+01:00 - Seite 148 Version: 2.11.8.1 X Press button V or U repeatedly until one of the following two displays appears in the multifunction display. Distronic deactivated When the Distronic is deactivated, you will see the standard Distronic display in the multifunction display. : Preceding vehicle, if detected ; Actual distance to the preceding vehicle = Preset distance threshold to the preceding vehicle ? Your vehicle Distronic activated When the Distronic is activated :, you will see the set speed ; in the multifunction display for approximately 5 seconds. The following display appears in the multifunction display. After approximately 5 seconds the currently set speed ; appears in the status indicator of the multifunction display: DTR XXX Miles Cruise control lever The Distronic system is operated by means of the cruise control lever. : Setting current or higher speed ; Setting current or lower speed = Deactivating the Distronic ? Activating the Distronic or resuming to the last set speed Activating Distronic You can activate the Distronic when the vehicle speed is between 20 mph (30 km/h) and 110 mph (180 km/h). When the Distronic is activated, one or two cruise control speed segments around the set speed in the speedometer dial are illuminated. The multifunction display will show a message such as DISTRONIC 55 MPH (Canada: DISTRONIC 90 km/h). After approximately 5 seconds the currently set speed appears in the status indicator of the multifunction display: RUSA only: e.g. DTR 55 Miles RCanada only: e.g. DTR 90 km/h If the Distronic is not activated after the cruise control lever is pulled in direction of arrow ? (Y page 148), you will see the message DISTRONIC Off in the multifunction display. In the following cases you cannot activate the Distronic: Rup to 2 minutes after starting the engine Rwhen you brake Rwhen you have engaged the parking brake 251_AKB; 4; 52, en-US d2ureepe, 2009-03-23T09:22:52+01:00 - Seite 149 Version: 2.11.8.1 Driving systems 149 Rwhen the automatic transmission is in park position P, reverse gear R, or neutral position N Rwhen the ESP® is switched off or has switched off due to a malfunction The vehicle speed displayed on the speedometer can briefly vary from the speed setting on the Distronic system. Setting the current speed X Accelerate or decelerate to the desired speed. X Briefly lift the cruise control lever in direction of arrow : or depress in direction of arrow ; (Y page 148). X Remove your foot from the accelerator pedal. i If you do not take your foot off of the accelerator pedal and continue to accelerate past the set speed, the following message will appear in the multifunction display: DISTRONIC Override The distance to a slower moving vehicle in front of you will not be set. Your vehicle speed will then be determined only by the accelerator pedal position. Changing the set speed G Warning! Keep in mind that it may take a brief moment until the vehicle has made the necessary adjustments. Increase or decrease the set vehicle speed to a value that the prevailing road conditions and legal speed limits permit. Otherwise, sudden and unexpected acceleration or deceleration of the vehicle could cause an accident and/ or serious injury to you and others. You can increase or decrease the set speed in 1 mph (Canada: 1 km/h) increments or in 5 mph (Canada: 10 km/h) increments. When you use the cruise control lever to decelerate, the brake system will brake the vehicle automatically if the engine’s braking power does not brake the vehicle sufficiently. Adjustment in 1 mph (Canada: 1 km/h) increments i The set speed value is increased or decreased in 1 mph (Canada: 1 km/h) increments each time you lift or press the cruise control lever up or down to the resistance point. X Increasing: Briefly lift the cruise control lever up to the resistance point in direction of arrow : (Y page 148). X Decreasing: Briefly press the cruise control lever down to the resistance point in direction of arrow ; (Y page 148). X Release the cruise control lever. The new speed is set and the vehicle will accelerate or decelerate. Adjustment in 5 mph (Canada: 10 km/h) increments i The set speed value is increased or decreased in 5 mph (Canada: 10 km/h) increments each time you lift or press the cruise control lever up or down past the resistance point. X Increasing: Briefly lift the cruise control lever up past the resistance point in direction of arrow : (Y page 148). X Decreasing: Briefly press the cruise control lever down past the resistance point in direction of arrow ; (Y page 148). X Release the cruise control lever. The new speed is set and the vehicle will accelerate or decelerate. Keep in mind that it may take a brief moment until the vehicle has reached the set speed. 251_AKB; 4; 52, en-US d2ureepe, 150 Driving systems Setting stored speed (Resume function) G Warning! The set speed stored in memory should only be set again if prevailing road conditions and legal speed limits permit. Possible acceleration or deceleration differences arising from returning to the preset speed could cause an accident and/or serious injury to you and others. X Briefly pull the cruise control lever in direction of arrow ? (Y page 148). If no speed is stored, the current speed is set and stored. X Remove your foot from the accelerator pedal. Deactivating Distronic X Depress the brake pedal. or X Briefly push the cruise control lever in direction of arrow = (Y page 148). The cruise control speed segments in the speedometer dial will go out and the following message appears briefly in the multifunction display: DISTRONIC Off The last set speed is stored for later use. The last stored speed is deleted from memory when the engine is turned off. The Distronic switches off automatically when you depress the brake pedal or you engage the parking brake. In this case, the cruise control speed segments in the speedometer dial will go out. The Distronic also switches off automatically when Rthe vehicle speed falls below 20 mph (30 km/h) Rthe ESP® is in operation Rthe ESP® is switched off with the ESP® switch 2009-03-23T09:22:52+01:00 - Seite 150 Version: 2.11.8.1 Rthe ESP® has switched off due to a malfunction Ryou shift the automatic transmission into neutral position N while driving The cruise control speed segments in the speedometer dial goes out and an acoustic warning will sound. Observe additional messages in the multifunction display that may appear. G Warning! Distronic switches off and releases the brakes when the vehicle decelerates below the minimum speed of 20 mph (30 km/h) by operation of the system. At that time the driver must apply the brakes in order to reduce vehicle speed further or bring it to a stop. Depressing the accelerator pedal does not deactivate the Distronic. After a brief acceleration (e.g. for passing), the Distronic will resume the last set speed. Setting the following distance in Distronic You can set the specified following distance for Distronic by varying the time setting between 1.0 and 2.0 seconds. Using this time setting and the current speed of your vehicle, Distronic calculates and sets the required following distance to the preceding vehicle. The set distance will be shown in the multifunction display. G Warning! It is up to the driver to exercise discretion to select the appropriate setting given road conditions, traffic, driver’s preferred driving style and applicable laws and driving recommendations for safe following distance. 251_AKB; 4; 52, en-US d2ureepe, 2009-03-23T09:22:52+01:00 - Seite 151 Version: 2.11.8.1 Driving systems 151 The Distronic regulates only the distance between your vehicle and those directly ahead of it, but does not register stationary objects in the road, e.g.: Ra stopped vehicle in a traffic jam Ra disabled vehicle Ran oncoming vehicle The driver must always be alert, observe all traffic and intercede as required by means of steering or braking the vehicle. G Warning! The Distronic should not be used in snowy or icy road conditions. The most likely cause for a malfunctioning system is a dirty Distronic system sensor cover (located in the hood grille), especially at times of snow and ice or heavy rain. In such a case, the Distronic will switch off, and the message DISTRONIC Currently Unavailable – See Operator’s Manual appears in the multifunction display. For cleaning and care of the Distronic system sensor cover, see (Y page 265). i If the message DISTRONIC Available Again appears during driving, the dirt (e.g. slush) has dissolved; the Distronic works again, if you reactivate it (Y page 148). Turns and bends In turns or bends, the Distronic may not detect a moving vehicle in front, or it may detect one too soon. This may cause your vehicle to brake late or unexpectedly. X Increasing distance: Turn distance setting switch : in direction of arrow =. Increasing the distance setting tells Distronic to maintain a greater following distance to the preceding vehicle. X Decreasing distance: Turn distance setting switch : in direction of arrow ;. Decreasing the distance setting tells Distronic to maintain a shorter following distance to the preceding vehicle. Driving with Distronic This section describes a number of driving situations where special precaution is required on the part of the driver. Be prepared to brake in such situations. Braking will deactivate the Distronic system. G Warning! The Distronic works to maintain the speed selected by the driver unless a moving obstacle proceeding directly ahead of it in the same travel direction is detected (e.g. following another vehicle ahead of you at your set distance). This means that: RYour vehicle can pass another vehicle after you have changed lanes. RWhile in a sharp turn or if the preceding vehicle is in a sharp turn, the Distronic could lose sight of the preceding vehicle. Your vehicle could then accelerate to the previously selected speed. 251_AKB; 4; 52, en-US d2ureepe, 152 Driving systems Offset driving A vehicle traveling in your lane but offset from your direct line of travel may not be detected by the Distronic. There will be insufficient distance to the preceding vehicle. Lane changing The Distronic has not yet detected the vehicle changing lanes. There will be insufficient distance to the lane-changing vehicle. Narrow vehicles Because of their narrow profile, the vehicles traveling near the outer edges of the lane 2009-03-23T09:22:52+01:00 - Seite 152 Version: 2.11.8.1 have not yet been detected by the Distronic. There will be insufficient distance to the preceding vehicles. Distance warning function This function warns you at a vehicle speed of above approximately 20 mph (30 km/h) in the following cases: RAt the current speed, the distance between your vehicle and the preceding vehicle is too low for several seconds. The distance warning lamp · in the instrument cluster comes on. RYou are gaining on a preceding vehicle rapidly. An intermittent warning sounds and the distance warning lamp · in the instrument cluster comes on. If these warnings are issued, you must apply the brakes to maintain a safe distance and avoid a collision with the preceding vehicle. When depressing the brake pedal, the warning sound ceases. The warning sound will also cease when the distance to the preceding vehicle is sufficient again without applying the brakes. In this case, the distance warning lamp · will also go out. G Warning! If the distance warning lamp · in the instrument cluster comes on while driving and/or an intermittent warning sounds, immediate attention on the part of the driver is required. As required by the traffic situation, apply the brakes and navigate around a possible obstacle. However, do not drive by relying on the distance warning function, as this will result in an emergency braking application. This will not always enable you to avoid a collision, especially when traveling on varying road surface conditions and with varying driver reaction. Complex driving situations are not always fully recognized by the distance warning function. This could result in wrong or missing distance warnings. 251_AKB; 4; 52, en-US d2ureepe, 2009-03-23T09:22:52+01:00 - Seite 153 Version: 2.11.8.1 Driving systems 153 X Activating/deactivating: Activate or deactivate the distance warning function in the control system (Y page 138). When activated, the distance warning function indicator Ä appears in the multifunction display. vehicle level at the rear axle constant, independent of the load. i Observe the information on towing a trailer, see “Trailer towing” (Y page 256). Hill-start assist system G Warning! The hill-start assist system is not designed to function as a parking brake. It does not prevent the vehicle from moving when parked on an incline. Always engage the parking brake in addition to shifting the automatic transmission into park position P. On uphill grades, the hill-start assist system maintains the pressure in the brake system for approximately 1 second after you have released the brake pedal. Therefore, you can start off smoothly without the vehicle moving immediately after releasing the brake pedal. X Depress the brake pedal. X Shift the automatic transmission into drive position D or reverse gear R. X Release the brake pedal. X Carefully depress the accelerator pedal. The hill-start assist system is inactive Rwhen starting off on a level road or downhill grades Rwith the automatic transmission in neutral position N Rwith the parking brake engaged Rif the ESP® has switched off due to a malfunction Rear-axle level control The rear-axle level control adjusts the vehicle level for the rear axle. The rear-axle level control is beneficial because it keeps the AIRMATIC The AIRMATIC lets you select the chassis and suspension setup. The chassis and suspension setup adjusts the damping behavior and the ride height for your vehicle. The AIRMATIC consists of two components. The Adaptive Damping System (ADS) (Y page 153) and the vehicle level control (Y page 154). Adaptive Damping System (ADS) The Adaptive Damping System (ADS) is controlled electronically and operates continuously. It adjusts the damping characteristics to the current operating and driving conditions. The damping is adjusted individually for each wheel. Driving safety and tire comfort are increased. The fine tuning of the damping is dependent on: Ryour driving style Rroad surface conditions Ryour personal settings The following settings are available: RAUTO (for normal driving situations) 251_AKB; 4; 52, en-US d2ureepe, 154 Driving systems Indicator lamps ; and = are off. RSPORT (for sporty driving) Indicator lamp ; comes on. RCOMF (for comfort driving) Indicator lamp = comes on. X Start the engine. X Press ADS switch : repeatedly until the desired suspension tuning is reached. The setting remains stored when you turn off the engine. Vehicle level control Your vehicle automatically adjusts its ride height. The all-around vehicle level control provides best possible suspension and constant ground clearance. The vehicle lowers at high speed automatically in order to increase driving safety and to reduce fuel consumption. Changes to the vehicle level should be made while the vehicle is moving. The vehicle will then reach the set level as fast as possible. When you park the vehicle and the ambient temperature changes, the vehicle level may change visibly. When the temperature drops, the vehicle lowers. When the temperature rises, the vehicle raises. The vehicle begins adjusting to the set vehicle level as soon as the doors or tailgate are unlocked or opened or closed with the vehicle unlocked. For major changes in vehicle level, the engine must be running. G Warning! Make sure no one is near the wheel housing or under the vehicle when you lower the vehicle while it is standing still. Limbs could become wedged into or under the vehicle. For safety reasons, the vehicle can only be lowered with all doors and the tailgate closed. Lowering is interrupted if a door or the tailgate 2009-03-23T09:22:52+01:00 - Seite 154 Version: 2.11.8.1 is opened and will continue after the door is closed again. ! Keep in mind that on rough or uneven roads, adjusting the vehicle to a lower level may cause the vehicle underbody to come in contact with the road and result in damage to the vehicle underbody. Always make sure the vehicle has sufficient ground clearance before adjusting it to a lower level. ! Before jacking up the vehicle with equipment that lifts one or more of the wheels completely off of the ground, remove the SmartKey from the starter switch. i The activation threshold is defined by the ADS setting (Y page 153). Basic settings The following vehicle chassis ride heights can be selected using vehicle level control switch : in the center console: Level Driving situation For driving on rough roads. Raised level Indicator lamp ; is on. For driving on paved roads in fair or better condition. Indicator lamp ; is off. Highway level 251_AKB; 4; 52, en-US d2ureepe, 2009-03-23T09:22:52+01:00 - Seite 155 Version: 2.11.8.1 Driving systems 155 i The third available level is the highspeed level that is set automatically. The following is the approximate change in ride height for each of the level settings: Level Raised level Highway level Highspeed level Ride height +1.97 in (50 mm) +/-0 in (0 mm) -0.78 in (-20 mm) i The vehicle is lowered to the highspeed level automatically if the vehicle speed is above 70 mph (112 km/h) or if the vehicle speed stays between 60 mph (96 km/h) and 70 mph (112 km/h) for approximately 20 seconds. i The highspeed level is not available when towing a trailer. For more information on towing a trailer, see “Trailer towing” (Y page 256). i Obey local speed limits. Use prudent driving speeds appropriate to prevailing conditions. Raised level Only select the raised level if appropriate for the driving situation encountered. Otherwise the fuel consumption may increase and/or the handling characteristics of the vehicle may be unfavorable. i You can select the raised level at speeds up to 25 mph (40 km/h). At higher speeds, the message Á Level Selection Not Permitted appears in the multifunction display. X Start the engine. When indicator lamp ; is off: X Press switch :. Indicator lamp ; flashes. The vehicle adjusts to the raised level. The following message appears in the multifunction display while the level is being set: i The message can be cleared by pressing the V, U, & or * button on the multifunction steering wheel. When the raised level is reached, indicator lamp ; comes on continuously and the following message appears in the multifunction display for approximately 5 seconds: The vehicle level is set to highway level automatically when the vehicle speed is exceeding 25 mph (40 km/h). Highway level ! Keep in mind that on rough or uneven roads, adjusting the vehicle to a lower level may cause the vehicle underbody to come in contact with the road and result in damage to the vehicle underbody. Always make sure the vehicle has sufficient ground clearance before adjusting it to a lower level. 251_AKB; 4; 52, en-US d2ureepe, 156 Driving systems X Close all doors and the tailgate. X Start the engine. When indicator lamp ; is on: X Press switch :. Indicator lamp ; flashes. The vehicle adjusts to the highway level. The following message appears in the multifunction display while the level is being set: i The message can be cleared by pressing the V, U, & or * button on the multifunction steering wheel. When the highway level is reached, indicator lamp ; goes out and the following message appears in the multifunction display for approximately 5 seconds: The vehicle level raised from highspeed level to highway level automatically when the vehicle speed falls below 40 mph (64 km/h). In the raised level, the vehicle level is lowered to the highway level automatically when the vehicle speed is exceeding 25 mph (40 km/h). 2009-03-23T09:22:52+01:00 - Seite 156 Version: 2.11.8.1 improves traction in conjunction with the ESP® (Y page 65) and the Electronic Traction System (4-ETS) (Y page 65). G Warning! If a drive wheel is spinning due to insufficient traction: RWhile driving off, apply as little throttle as possible. RWhile driving, ease up on the accelerator pedal. RAdapt your speed and driving style to the prevailing road conditions. Failure to observe these guidelines could cause the vehicle to skid. The 4MATIC cannot prevent accidents resulting from excessive speed. ! Do not tow with one axle raised. Doing so could damage the transfer case, which is not covered by the Mercedes-Benz Limited Warranty. All wheels must be on or off the ground. Observe instructions for towing the vehicle with all wheels on the ground. ! Only conduct operational or performance tests on a two-axle dynamometer. If such tests are necessary, contact an authorized Mercedes-Benz Center. You could otherwise seriously damage the brake system and/or the transfer case which is not covered by the Mercedes-Benz Limited Warranty. i In winter operation, the maximum effectiveness of the 4MATIC is only achieved with winter tires (Y page 251) or snow chains as required. All-wheel drive (4MATIC) In vehicles with all-wheel drive (4MATIC), both axles are powered at all times when the vehicle is being operated. The 4MATIC Parktronic system The Parktronic system is an electronic parking aid with ultrasonic sensors designed to assist the driver during parking maneuvers. The Parktronic system indicates the relative 251_AKB; 4; 52, en-US d2ureepe, 2009-03-23T09:22:52+01:00 - Seite 157 Version: 2.11.8.1 distance between the vehicle and an obstacle visually and audibly. The Parktronic system is activated automatically when Ryou switch on the ignition and Ryou release the parking brake and Rthe automatic transmission is in drive position D, reverse gear R, or neutral position N The Parktronic system deactivates at speeds above approximately 11 mph (18 km/h). At lower speeds, the Parktronic system activates again. The Parktronic system also deactivates when you shift the automatic transmission into park position P or engage the parking brake. The Parktronic system monitors the surroundings of your vehicle with six sensors in the front bumper and four sensors in the rear bumper. Driving systems 157 parking and other critical maneuvers always remains with the driver. G Warning! Make sure no persons or animals are in or near the area in which you are parking/ maneuvering. Otherwise, they could be injured. ! Special attention must be paid to objects with smooth surfaces or low silhouettes (e.g. trailer couplings, painted posts, elevated crossbars or road curbs). Such objects may not be detected by the system and can damage the vehicle. During parking maneuvers, pay special attention to objects located above or below the height of the sensors (e.g. street curbs, painted posts, or trailer hitches etc.). The Parktronic system will not detect such objects at close range and damage to your vehicle or the object may result. ! Ultrasonic signals from outside sources (e.g. truck air brakes, car wash, or jackhammers) may impair the operation of the Parktronic system. Range of the sensors To function properly, sensors : must be free of dirt, ice, snow and slush. Clean sensors : regularly. Be careful not to scratch or damage sensors :, see “Cleaning the driving systems sensors” (Y page 265). G Warning! The Parktronic is a supplemental system. It is not intended to, nor does it replace, the need for extreme care. The responsibility during 251_AKB; 4; 52, en-US d2ureepe, 158 Driving systems 2009-03-23T09:22:52+01:00 - Seite 158 Version: 2.11.8.1 Front sensors Center Corners Rear sensors Center Corners approx. 40 in (100 cm) approx. 24 in (60 cm) approx. 48 in (120 cm) approx. 32 in (80 cm) Minimum distance Center Corners approx. 8 in (20 cm) approx. 6 in (15 cm) If the Parktronic system detects an obstacle in this range, all the distance warning segments illuminate and you hear a warning signal. If the obstacle is closer than the minimum distance, the actual distance may no longer be indicated by the Parktronic system. Warning indicators Visual signals indicate the relative distance between the sensors and an obstacle. Front area warning indicators Rear area warning indicators Each warning indicator is divided into five yellow and two red distance segments for left side : and right side ; of the vehicle. The Parktronic system is ready to measure when the yellow readiness indicators = are illuminated. The current transmission position determines which warning indicator will be activated. Current Warning indicator transmission position R or N Front area activated Front and rear area activated As your vehicle approaches an object, one or more distance segments will illuminate, depending on the distance. When the seventh distance segment illuminates, you have reached the minimum distance. 251_AKB; 4; 52, en-US d2ureepe, 2009-03-23T09:22:52+01:00 - Seite 159 Version: 2.11.8.1 RFront area: An intermittent acoustic warning lasting a maximum of 2 seconds will sound as the first red distance segment illuminates. A constant acoustic warning lasting a maximum of 2 seconds will sound for the second red distance segment. The signal is canceled when the automatic transmission is shifted into park position P or the parking brake is engaged. RRear area: An intermittent acoustic warning lasting a maximum of 2 seconds will sound as the first red distance segment illuminates. A constant acoustic warning lasting a maximum of 2 seconds will sound for the second red distance segment. The signal is canceled when the automatic transmission is shifted into drive position D, or park position P, or the parking brake is engaged. Switching the Parktronic system on/ off The Parktronic system switches on automatically when the ignition is switched on. X Switching off: Press Parktronic switch :. Indicator lamp ; comes on. X Switching on: Press Parktronic switch : again. Driving systems 159 Trailer towing The rear Parktronic sensors will be deactivated when you have established the electrical connection between your vehicle and the trailer you are about to tow. ! The distance between the sensors in the bumpers and an obstacle is referred to as the minimum range of the Parktronic. A trailer hitch will reduce the distance to an obstacle. Keep this in mind to avoid any damage. Parktronic system malfunction There is a malfunction in the Parktronic system, if only the red distance segments illuminate and an acoustic warning sounds. The Parktronic system will switch off automatically after 20 seconds and indicator lamp ; in Parktronic switch : comes on. X Have the Parktronic system checked at an authorized Mercedes-Benz Center as soon as possible. If only the red distance segments illuminate and no acoustic warning sounds, the Parktronic system sensors are dirty (e.g. dirt, ice, snow and slush). Another cause could be interference from other radio or ultrasonic signals (e.g. truck air brakes, car wash, or jackhammers). The Parktronic system will switch off automatically after 20 seconds and indicator lamp ; in Parktronic switch : comes on. X Switch off the ignition. X Clean the Parktronic system sensors (Y page 265). X Switch on the ignition. or X Check the Parktronic system operation at another location to rule out interference from outside radio or ultrasonic signals. Rear view camera The rear view camera is an optical parking aid. 251_AKB; 4; 52, en-US d2ureepe, 160 Driving systems The area behind the vehicle appears in the COMAND system display as a mirror image, like in the rear view mirror. In addition, the rear view camera contains guidelines to help you with driving in reverse. G Warning! Make sure no persons or animals are in or near the area in which you are parking/ maneuvering. Otherwise, they could be injured. G Warning! The rear view camera is only an aid and may display obstacles Rfrom a distorted perspective Rinaccurately Rmay not display obstacles at all The rear view camera does not relieve you of the responsibility to be cautious. Take care and pay careful attention. The rear view camera may not show objects which are Rvery close to the rear bumper Runder the rear bumper Rabove the tailgate handle You are responsible for safety at all times and must continue to pay attention to the immediate surroundings when parking and maneuvering. This includes the area behind, in front of, and beside the vehicle. Otherwise you could endanger yourself and/or others. G Warning! The rear view camera either will not function or will not function to its full capability if Rthe tailgate is open Rit is raining very hard, snowing or foggy Rit is night or you are parking/maneuvering your vehicle in an area where it is very dark Rthe camera is exposed to a very bright white light 2009-03-23T09:22:52+01:00 - Seite 160 Version: 2.11.8.1 Rthe immediate surroundings are illuminated with fluorescent light (the display may flicker) Rthere is a sudden change in temperature, e.g. if you drive into a heated garage from the cold (lens condensation) Rthe camera lens is dirty or covered Rthe rear of your vehicle is damaged In this case, have the position and setting of the camera checked by a qualified specialist workshop. Mercedes-Benz recommends that you contact a Mercedes- Benz Center for this purpose. Do not use the rear view camera in these situations. Otherwise you could injure yourself or others and/or damage property including your vehicle while parking/ maneuvering. G Warning! Use of rear view camera can be dangerous if you are color-blind or have impaired color vision. Only use rear view camera if you can see and distinguish all colored guidelines shown by rear view camera on the COMAND system display. Camera lens : must be free of dirt, ice, snow, and slush to function properly. Clean the camera lens regularly. Being careful not to scratch or damage the camera lens, see “Cleaning the rear view camera lens” (Y page 266). 251_AKB; 4; 52, en-US d2ureepe, 2009-03-23T09:22:52+01:00 - Seite 161 Version: 2.11.8.1 Driving systems 161 Red guideline = indicates an approximate distance of 10 in (0.25 m) from the rear of the vehicle. Yellow guidelines ; indicate an approximate distance of 3 ft (1 m) from the rear of the vehicle. Blue guidelines : indicate the approximate width required for the vehicle. i The image from the rear view camera will no longer be displayed if you select another function on the COMAND system while reverse gear R is engaged. To display the image again, disengage and reengage reverse gear R. X Switching off: Shift the automatic transmission into park position P, neutral position N, or drive position D.

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2010 Mercedes-benz R Class Owners Manual