2003 Mercedes-benz C Class Owners Manual

(plumb-line) as seen from the side, even if the vehicle is parked on an incline.

왘 Jack up the vehicle until the wheel is a

maximum of 1.2 in (3 cm) from the ground. Never start engine while vehicle is raised.

Wheel cover on vehicles with steel rims (Canada only) 왘 On wheel to be changed, remove wheel cover by reaching into two openings of the wheel cover and pulling away from the wheel.

왘 On wheel to be changed, loosen but do

not yet remove the wheel bolts (approximately one full turn with wrench).

298

Removing the wheel

Mounting the new wheel

1 Wheel bolt for light alloy rims 2 Wheel bolt for Minispare wheel or other

steel rims

왘 Clean contact surfaces of wheel and

wheel hub.

왘 Guide the spare wheel onto the

alignment bolt and push it on.

왘 Insert wheel bolts and tighten them

slightly.

1 Alignment bolt 왘 Unscrew upper-most wheel bolt and

remove.

왘 Replace this wheel bolt with the

alignment bolt 1 supplied in the tool kit.

왘 Remove the remaining bolts.

Do not place wheel bolts in sand or dirt. This could result in damage to the bolt and wheel hub threads.

왘 Remove the wheel.

Practical hints Flat tire

Wheel bolts 2 must be used when mounting steel wheel rims or the Minispare wheel. The use of any wheel bolts other than wheel bolts 2 for steel wheel rims or the Minispare wheel can cause physical damage to the vehicle.

To avoid paint damage, place wheel flat against hub and hold it there while installing first wheel bolt.

컄컄

299

Practical hints Flat tire

Warning!

Warning!

Minispare wheel

Always replace wheel bolts that are damaged or rusted.

Never apply oil or grease to wheel bolts.

Damaged wheel hub threads should be repaired immediately. Do not continue to drive under these circumstances! Contact an authorized Mercedes-Benz Center or call Roadside Assistance.

Incorrect mounting bolts or improperly tightened mounting bolts can cause the wheel to come off. This could cause an accident. Be sure to use the correct mount- ing bolts.

Use only genuine equipment Mercedes-Benz wheel bolts. They are identi- fied by the Mercedes star. Other wheel bolts may come loose.

Do not tighten the wheel bolts when the vehicle is raised. Otherwise the vehicle could tip over.

왘 Unscrew the alignment bolt, install last

wheel bolt and tighten slightly.

300

Warning!

The dimensions of the Minispare wheel are different from those of the road wheels. As a result, the vehicle handling characteristics change when driving with a Minispare wheel mounted.

The spare wheel should only be used temporarily, and replaced with a regular road wheel as quick as possible.

In the case of a flat tire, you may temporarily use the Minispare wheel when observing the following restrictions: 앫 Do not exceed vehicle speed of 50 mph

Lowering the vehicle 왘 Lower vehicle by turning crank

counterclockwise until vehicle is resting fully on its own weight.

왘 Remove the jack.

(80 km/h).

앫 Drive to the nearest tire repair facility

to have the flat tire repaired or replaced as appropriate.

앫 Do not operate vehicle with more than

one spare wheel mounted.

Practical hints Flat tire

Warning!

Have the tightening torque checked after changing a wheel. The wheels could come loose if they are not tightened to a torque of 80 ft lb (110 Nm).

왘 Before storing the jack in the trunk, it should be fully collapsed, with handle folded in (storage position) (컄 page 280).

1 - 5 Wheel bolts 왘 Tighten the five wheel bolts evenly,

following the diagonal sequence illustrated (1 to 5), until all bolts are tight. Observe a tightening torque of 80 ft lb (110 Nm).

301

Practical hints Flat tire

Wheel cover on vehicles with steel rims (Canada only) 왘 Position small wheel cover opening

over tire valve and press wheel cover against wheel rim.

왘 Now press (do not hit) opposite side of

wheel cover against wheel rim until seated. Make certain that the springs of the wheel cover are firmly seated in the outer rim of the steel wheel.

302

Battery The battery is located in the engine com- partment on the right hand side.

Warning!

Failure to follow these instructions can re- sult in severe injury or death.

Never lean over batteries while connecting, you might get injured.

Battery fluid contains sulfuric acid. Do not allow this fluid to come in contact with eyes, skin or clothing. In case it does, immediately flush affected area with water and seek medical help if necessary.

A battery will also produce hydrogen gas, which is flammable and explosive. Keep flames or sparks away from battery, avoid improper connection of jumper cables, smoking etc.

Removal of filter box: 왘 Release the three clamps 1. 왘 Remove filter box. Installation of filter box: 왘 Insert filter box properly. 왘 Secure it with the three clamps 1.

Practical hints Battery

Never loosen or detach battery termi- nal clamps while the engine is running or the key is in the starter switch. Oth- erwise the alternator and other elec- tronic components could be severely damaged. Have the battery checked regularly by an authorized Mercedes-Benz Center. Refer to Service Booklet for mainte- nance intervals or contact your autho- rized Mercedes-Benz Center for further information.

Warning!

Do not place metal objects on the battery as this could result in a short circuit.

Use leak-proof battery only to avoid the risk of acid burns in the event of an accident.

303

G

Disconnecting the battery

Charging and reinstalling the battery

왘 Turn off all electrical consumers. 왘 Open the hood (컄 page 235). 왘 Remove the filter box. 왘 Disconnect the battery negative

lead 1.

왘 Remove the cover 2 from the positive

terminal.

왘 Disconnect the battery positive lead.

Removing the battery

왘 Remove the screw-nuts securing the

battery.

왘 Remove the battery bracket. 왘 Take out the battery.

왘 Charge battery in accordance with the

instructions of the battery charger manufacturer.

왘 Reinstall the charged battery. Follow the previously described steps in re- verse order.

Warning!

Never charge a battery while still installed in the vehicle. Gases may escape during charg- ing and cause explosions that may result in paint damage, corrosion or personal injury.

Practical hints Battery

Warning!

With a disconnected battery 앫 you will no longer be able to turn the key in the starter switch will have no effect 앫 the selector lever will remain locked in

position P

1 Negative terminal 2 Positive terminal cover

304

Reconnecting the battery

왘 Turn off all electrical consumers. 왘 Connect the positive lead and fasten its

cover.

왘 Connect the negative lead.

NEVER invert the terminal connections!

왘 Reinstall the filter box (컄 page 303).

The battery, its filler caps and the vent tube must always be securely installed when the vehicle is in operation.

Practical hints Battery

The following procedures must be car- ried out following any interruption of battery power (e.g. due to reconnec- tion): 앫 Set the clock (컄 page 120) Vehicles with COMAND*: see COMAND operator’s manual.

Batteries contain materials that can harm the environment if disposed of improperly. Large 12 volt storage batteries contain lead. Recycling of batteries is the preferred method of disposal. Many states require sellers of batteries to accept old batteries for recycling.

앫 Resynchronize the front seat head

restraints (컄 page 94). 앫 Resynchronize the ESP

(컄 page 75).

앫 Resynchronize side windows

(컄 page 189).

앫 Resynchronize sliding/pop-up

roof* (컄 page 191).

305

Practical hints Jump starting Jump starting

Warning!

Failure to follow these directions will cause damage to the electronic components, and can lead to a battery explosion and severe injury or death.

Never lean over batteries while connecting or jump starting, you might get injured.

Battery fluid contains sulfuric acid. Do not allow this fluid to come in contact with eyes, skin or clothing. In case it does, immediately flush affected area with water, and seek medical help if necessary.

A battery will also produce hydrogen gas, which is flammable and very explosive. Keep flames or sparks away from battery, avoid improper connection of jumper cables, smoking etc.

If the battery is discharged, the engine can be started with jumper cables and the bat- tery of another vehicle. Observe the follow- ing: 앫 Jump starting should only be performed when the engine and catalytic convert- er are cold.

앫 Do not start the engine if the battery is

frozen. Let the battery thaw out first.

앫 Only jump start from batteries with the

same voltage rating (12 V). Jump starting with a more powerful battery could damage the vehicle’s electrical system, which will not be covered by the Mercedes-Benz Limited Warranty. 앫 Only use jumper cables with sufficient

cross-section and insulated terminal clamps.

Read all instructions before proceeding.

앫 Always make sure that the jumper

cables are not on or near pulleys, fans, or other parts that move when an engine is started or running.

Jump starting may only be performed on the battery installed in the engine compartment. Avoid repeated and lengthy starting at- tempts. Do not attempt to start the engine using a battery quick charge unit. If engine does not run after several unsuccessful starting attempts, have it checked at the nearest authorized Mercedes-Benz Center. Excessive unburned fuel generated by repeated failed starting attempts may damage the catalytic converter and may present a fire risk. Make sure the jumper cables do not have loose or missing insulation. Make sure the cable clamps do not touch any other metal part while the other end is still attached to a battery.

306

Warning!

Keep flames or sparks away from battery. Do not smoke.

Observe all safety instructions and precau- tions when handling automotive batteries (컄 page 240).

The battery is located in the engine compartment on the right hand side. The terminals for jump starting are located in front of the battery. 왘 Make sure that the two vehicles do not

touch.

왘 Turn off all electrical consumers. 왘 Apply parking brake. 왘 Shift selector lever to position P (man-

ual transmission to Neutral).

1 Positive terminal of charged battery 2 Positive under hood terminal in front of

discharged battery

3 Negative terminal of charged battery 4 Negative under hood terminal in front

of discharged battery

왘 Connect positive terminal 1 of the

charged battery with the under hood terminal 2 in front of the discharged battery with the jumper cables. Clamp cable to charged battery 1 first.

왘 Start engine of the vehicle with the

charged battery and run at idle speed.

Practical hints Jump starting

왘 Connect negative terminal 3 of the

charged battery with the under hood terminal 4 of the discharged battery with the jumper cables. Clamp cable to charged battery 3 first.

왘 Start the engine of the disabled vehi-

cle.

Now you can again turn on the electrical consumers. Do not turn on the lights under any circumstances. 왘 Remove the jumper cables first from negative terminals 3 and 4 and then from positive terminals 1 and 2.

왘 Have the battery checked at the near- est authorized Mercedes-Benz Center.

Vehicles with automatic transmission and/or 4MATIC*: Do not tow-start the vehicle.

307

Practical hints Towing the vehicle Towing the vehicle Mercedes-Benz recommends that the vehicle be transported with all wheels off the ground using flatbed or appropriate wheel lift/dolly equipment. This method is preferable to other types of towing.

Use flatbed or wheel lift/dolly equip- ment with key in starter switch turned to position 0. Do not tow with sling-type equipment. Towing with sling-type equipment over bumpy roads will damage radiator and supports. To prevent damage during transport, do not tie down vehicle by its chassis or suspension parts. Switch off the tow-away alarm (컄 page 80) and deactivate the auto- matic central locking (컄 page 129).

308

When circumstances do not permit the recommended towing methods, the vehicle may be towed with all wheels on the ground or front wheels raised (except vehicles with 4MATIC*) only so far as necessary to have the vehicle moved to a safe location where the recommended towing methods can be employed.

Vehicles with automatic transmission and/or 4MATIC*: Do not tow-start the vehicle.

Vehicles with 4MATIC*: 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.

If the vehicle is towed with the front axle raised (not permissible for vehicles with 4MATIC*), the engine must be shut off (key in starter switch position 0 or 1). Otherwise the ESP will immediately be engaged and will apply the rear wheel brakes. When towing the vehicle with all wheels on the ground, the selector lever must be in position N (manual transmission: gears disengaged) and the key must be in starter switch position 2. When towing the vehicle with all wheels on the ground or the front axle raised, the vehicle may be towed only for distances up to 30 miles (50 km) and at a speed not to exceed 30 mph (50 km/h).

! To be certain to avoid a possibility of damage to the drive train, however, we recommend the drive shaft be discon- nected at the rear axle drive flange (vehicles with 4MATIC*: disconnected at the front and rear axle drive flanges) for any towing beyond a short tow to a nearby garage.

Warning!

If circumstances require towing the vehicle with all wheels on the ground, always tow with a tow bar if: 앫 the engine will not run 앫 there is a malfunction in the power supply or in the vehicle’s electrical system

as that will be necessary to adequately control the towed vehicle.

Prior to towing the vehicle with all wheels on the ground, make certain that the key is in starter switch position 2.

If the key is left in starter switch position 0 for an extended period of time, it can no longer be turned in the switch. In this case, the steering is locked. To unlock, remove key from starter switch and reinsert.

Practical hints Towing the vehicle

To signal turns while being towed with the hazard warning flasher in use, turn key in starter switch to position 2 and activate the combination switch for the left or right turn signal in the usual manner – only the selected turn signal will operate. Upon canceling the turn signal, the hazard warning flasher will operate again.

309

Practical hints Towing the vehicle

Warning!

With the engine not running, there is no power assistance for the braking and steer- ing systems. In this case, it is important to keep in mind that a considerably higher degree of effort is necessary to brake and steer the vehicle. Adapt your driving accord- ingly.

310

If the battery is disconnected or discharged 앫 the key will not turn in the starter switch. See notes on the battery (컄 page 240) or on jump starting (컄 page 306).

앫 the selector lever will remain

locked in position P. See notes on manual unlocking of gear selector lever (컄 page 288).

When towing the vehicle with all wheels on the ground, please note the follow- ing: With the automatic central locking activated and the key in starter switch position 2, the vehicle doors lock if the left front wheel as well as the right rear wheel are turning at vehicle speeds of approx. 9 mph (15 km/h) or more. Switch off the tow-away alarm (컄 page 80). To prevent the vehicle doors from locking, deactivate the automatic central locking (컄 page 129). Towing of the vehicle should only be done using the properly installed towing eye bolt. Never attach tow cable, tow rope or tow rod to vehicle chassis, frame or suspension parts.

Installing towing eye bolt

1 Cover on right side of front bumper.

2 Cover on right side of rear bumper.

Practical hints Towing the vehicle

Removing cover 왘 Press mark on cover in direction of ar-

row.

왘 Lift cover off to reveal threaded hole for

towing eye bolt.

The towing eye bolt is supplied with the tool kit (located behind the left hand trim panel in cargo area). 왘 Screw towing eye bolt in to its stop and

tighten with lug wrench.

Reinstalling cover 왘 Fit cover and snap into place.

311

Practical hints Fuses Fuses Only install fuses that have been tested and approved by Mercedes-Benz and that have the specified amperage rat- ing. Never attempt to repair or bridge a blown fuse. Have the cause determined and remedied by an authorized Mercedes-Benz Center.

Fuse box in passenger compartment

1 Cover

312

Opening 왘 Pull cover 1 open with a screw driver or

similar tool.

왘 Remove cover 1 rearward.

Fuse box in engine compartment

The fuse box is located in the engine com- partment on the left hand side.

Closing 왘 Attach the cover 1 in the front. 왘 Fold the cover 1 in until it engages.

Fuse chart The fuse chart is found in the fuse box in the passenger compartment. The amper- ages of the fuses are also given there.

1 Screw 2 Cover 3 Retainer

Removing/installing cover 왘 Twist screws 1 90° counterclockwise. 왘 Pull up cover 2. 왘 Slide out retainer 3 and remove cover

by pulling towards front.

왘 Install cover 2 in reverse order.

Opening fuse box

Auxiliary fuse box in trunk

The auxiliary fuse box is located in the trunk.

Practical hints Fuses

Spare fuses Spare fuses are found in the vehicle tool kit in the spare wheel well.

4 Fuse box cover 5 Clamps 왘 Release clamps 5. 왘 Remove cover 4.

Closing fuse box 왘 Ensure that the sealing rubber is prop-

erly positioned.

왘 Press the cover 4 down and secure

with clamps 5.

1 Trim panel 2 Cover of auxiliary fuse box 3 Special fuse extractor

Opening 왘 Pull away trim panel 1. 왘 Remove cover 2.

313

314

Technical data Spare parts service

Warranty coverage

Identification labels

Layout of poly-V-belt drive

Engine

Rims and Tires

Electrical system

Main dimensions

Weights

Fuels, coolants, lubricants etc.

Consumer information

315

Technical data Spare parts service

The “Technical data” section provides the necessary technical data for your vehicle.

The use of non-genuine parts and accessories not authorized by Mercedes-Benz could damage the vehicle, which is not covered by the Mercedes-Benz Limited Warranty, or could compromise the vehicle’s dura- bility or safety.

Spare parts service All authorized Mercedes-Benz Centers maintain a stock of original spare parts re- quired for maintenance and repair work. In addition, strategically located parts distri- bution centers provide quick and reliable parts service. More than 300000 different spare parts for Mercedes-Benz models are available. Mercedes-Benz original spare parts are subject to stringent quality inspections. Each part has been specifically developed, manufactured or selected for and adapted to Mercedes-Benz vehicles. Therefore, Mercedes-Benz original spare parts should be installed.

316

Technical data Warranty coverage

Replacement parts and accessories are covered by the Mercedes-Benz Spare Parts and Accessories warranties, copies of which are available at any Mercedes-Benz Center.

Loss of Service and Warranty Information Booklet

Should you lose your Service and Warranty Information booklet, have your authorized Mercedes-Benz Center arrange for a re- placement. It will be mailed to you.

Warranty coverage Your vehicle is covered under the terms of the “warranties” printed in the Service and Warranty Information booklet. Your authorized Mercedes-Benz Center will ex- change or repair any defective parts origi- nally installed in the vehicle in accordance with the terms of the following warranties: 앫 New Vehicle Limited Warranty 앫 Emission System Warranty 앫 Emission Performance Warranty 앫 California, Maine, Massachusetts, and

Vermont Emission Control Systems Warranty

317

Technical data Identification labels Identification labels

1 Certification label

2 Vehicle Identification Number (VIN)

3 Information label, California version

Vacuum line routing for emission con- trol system

4 Engine number (engraved on engine) 5 VIN, visible (lower edge of windshield) 6 Emission control label When ordering spare parts, please specify vehicle identification and engine numbers.

318

Layout of poly-V-belt drive C 230 Kompressor Sport

C 240 / C 320 (all models)

C 32 AMG

Technical data Layout of poly-V-belt drive

1 Power steering pump 2 Idler pulley 3 Mechanical loader 4 Automatic belt tensioner 5 Air conditioning compressor 6 Crankshaft 7 Coolant pump 8 Generator (alternator)

1 Idler pulley 2 Automatic belt tensioner 3 Power steering pump 4 Air conditioning compressor 5 Crankshaft 6 Coolant pump, fan 7 Generator (alternator)

1 Idler pulley 2 Idler pulley 3 Supercharger 4 Automatic belt tensioner 5 Power steering pump 6 Air conditioning compressor 7 Crankshaft 8 Coolant pump, fan 9 Generator (alternator)

319

Technical data Engine Engine

Model

Engine Mode of operation No. of cylinders Bore Stroke Total piston displacement Compression ratio Output acc. to SAE J 1349

C 230 Kompressor Sport (203.040)1

271
4-stroke engine, gasoline injection 3.23 in (82.00 mm) 3.35 in (85.00 mm) 109.6 cu.in. (1796 cm3) 8.5:1
189 hp/5800 rpm (141 kW/5800 rpm) 192 ft.lb/3500 rpm (260 Nm/3500 rpm) 6000 rpm 1-3-4-2
7 ft 11 in (2420 mm)

C 240 (203.061)1
C 240 4MATIC (203.081)1
112
4-stroke engine, gasoline injection 3.54 in (89.90 mm) 2.68 in (68.20 mm) 158.5 cu.in. (2597 cm3) 10.5:1
167 hp/6000 rpm (125 kW/6000 rpm) 177 ft.lb/4500 rpm (240 Nm/4500 rpm) 6200 rpm 1-4-3-6-2-5
7 ft 10 in (2390 mm)

Maximum torque acc. to SAE J 1349
Maximum engine speed Firing order Poly-V-belt 1 The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special bodies and

special equipment.

320

Technical data Engine

C 32 AMG (203.065)1

Model

Engine Mode of operation No. of cylinders Bore Stroke Total piston displacement Compression ratio Output acc. to SAE J 1349

C 320 (203.064)1
C 320 4MATIC (203.084)1
C 320 Sport (203.064)1
C 320 4MATIC Sport (203.084)1
112
4-stroke engine, gasoline injection 3.54 in (89.90 mm) 3.31 in (84.00 mm) 195.2 cu.in. (3199 cm3) 10:1
214 hp/5700 rpm (160 kW/5700 rpm) 229 ft.lb/3000 rpm (310 Nm/3000 rpm) 6000 rpm 1-4-3-6-2-5
7 ft 10 in (2390 mm)

112
4-stroke engine, gasoline injection 3.54 in (89.90 mm) 3.31 in (84.00 mm) 195.2 cu.in. (3199 cm3) 9:1
348 hp/6100 rpm (260 kW/6100 rpm) 333 ft.lb/4400 rpm (450 Nm/4400 rpm) 6200 rpm 1-4-3-6-2-5
9 ft 6 in (2902 mm)

Maximum torque acc. to SAE J 1349
Maximum engine speed Firing order Poly-V-belt 1 The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special bodies and

special equipment.

321

Technical data Rims and Tires Rims and Tires Use only tires and rims which have been specifically developed for your vehicle and tested and approved by Mercedes-Benz. Other tires and rims can have detrimental effects, such as 앫 poor handling characteristics 앫 increased noise 앫 increased fuel consumption

Moreover, tires and rims not approved by Mercedes-Benz may, under load, exhibit dimensional variations and dif- ferent tire deformation characteristics under load that could cause them to come into contact with the vehicle body or axle parts. Damage to the tires or the vehicle may be the result.

Further information on tires and rims is available at any authorized Mercedes-Benz Center. A tire inflation pressure table is located on the fuel fill- er cap of the vehicle. The tire pressure should be checked regularly and should only be adjusted on cold tires. Follow tire manufacturer’s mainte- nance recommendation included with vehicle.

322

Same size tires

C 240
C 240 4MATIC C 320
C 320 4MATIC 7J x 16 H2
7J x 16 H2
1.46 in (37 mm)

Rims (light alloy) Rims (steel - Canada only) Wheel offset All season tires (radial-ply tires) 205/55 R16 91 H Summer tires (radial-ply tires) Winter tires (radial-ply tires)

205/55 R16 91 H M+S

1 Must not be used with snow chains. 2 Only on rim 71/2 Jx17 H2 ET 37

Technical data Rims and Tires

C 230 Kompressor Sport C 320 Sport C 320 4MATIC Sport

C 32 AMG

71/2J x 17
1.46 in (37 mm) 225/45 R17 91 W1
205/55 R16 91 H M+S

205/50 R17 89 H M+S2 or 225/45 R17 91 H M+S1, 2

323

C 32 AMG

71/2J x 17 H2
1.46 in (37 mm) 225/45 R17 91 Y1

81/2J x 17 H2
1.34 in (34 mm) 245/40 R17 91 Y2, 3

Technical data Rims and Tires

Mixed size tires

Front axle: Rims (light alloy) Wheel offset Summer tires (radial-ply tires) Rear axle: Rims (light alloy) Wheel offset Summer tires (radial-ply tires) 1 Also permissible: 225/45 ZR17 91 Y 2 Also permissible: 245/40 ZR17 91 Y 3 Must not be used with snow chains.

324

Spare wheel

Your vehicle is equipped with either a spare wheel with full size tire or Minispare wheel.

Spare wheel with full size tire

Rim (light alloy) Rim (steel) Wheel offset All season tire (radial-ply tire)

Minispare wheel

Rim (steel) Wheel offset All season tire (radial-ply tire) 1 Must not be used with snow chains.

C 230 Kompressor Sport C 240 (all models) C 320 (all models) 7J x 16 H2
1.46 in (37 mm) 205/55 R16 91 H

C 230 Kompressor Sport C 240 (all models) C 320 (all models) 3.5B x 16 H2
0.67 in (17 mm) T 125/90 R16 M 981

C 32 AMG

71/2J x 17 H2
1.42 in (36 mm) 225/45 R17 91 Y

Technical data Rims and Tires

325

Technical data Electrical system Electrical system

Generator (alternator) Starter motor Battery Spark plugs

C 230 Kompressor Sport 14 V/120 A 12 V/1.1 kW 12 V/100 Ah Bosch F 6 MPP 332

Electrode gap Tightening torque

0.031 in (0.8 mm) 18 – 22 ft.lb (25 – 30 Nm)

C 240 / C 320 (all models) C 32 AMG 14 V/120 A 14 V/120 A 12 V/1.7 kW 12 V/1.7 kW 12 V/100 Ah 12 V/100 Ah Bosch F 8 DPP332
NGK IFR 6 D 10
NGK PFR 5 R-11
0.039 in (1.0 mm) 15 – 22 ft.lb (20 – 30 Nm)

0.039 in (1.0 mm) 15 – 22 ft.lb (20 – 30 Nm)

326

Technical data Main dimensions

Main dimensions

C 230 Kompressor Sport C 240
C 320
C 320 Sport 178.2 in (4526 mm) 68.0 in (1728 mm) 56.3 in (1429 mm) 106.9 in (2715 mm) 58.8 in (1493 mm) 57.6 in (1464 mm)

Overall vehicle length 178.2 in (4526 mm) Overall vehicle width 68.0 in (1728 mm) Overall vehicle height 56.4 in (1433 mm) Wheelbase 106.9 in (2715 mm) Track, front 58.8 in (1493 mm) Track, rear 57.6 in (1464 mm)

C 240 4MATIC C 320 4MATIC C 320 4MATIC Sport 178.2 in (4526 mm) 68.0 in (1728 mm) 56.0 in (1422 mm) 106.9 in (2715 mm) 58.8 in (1493 mm) 57.6 in (1464 mm)

C 32 AMG

178.2 in (4526 mm) 68.0 in (1728 mm) 56.1 in (1426 mm) 106.9 in (2715 mm) 58.8 in (1493 mm) 58.0 in (1474 mm)

327

Technical data Weights Weights

Roof load max. Trunk load max.

220 lb (100 kg) 220 lb (100 kg)

328

Fuels, coolants, lubricants etc. Capacities

Vehicle components and their respective lubricants must match.

Therefore use only brands tested and recommended by Mercedes-Benz.

Please refer to the Factory Approved Service Products pamphlet, or inquire at your Mercedes-Benz Center.

Technical data Fuels, coolants, lubricants etc.

Model C 230 Kompressor Sport C 240
C 320
C 320 Sport C 240 4MATIC C 320 4MATIC C 320 4MATIC Sport C 32 AMG

C 230 Kompressor Sport C 240 (all models) C 320 (all models) C 32 AMG

Capacity 5.8 US qt (5.5 l) 7.9 US qt (7.5 l) 7.9 US qt (7.5 l) 7.9 US qt (7.5 l) 7.4 US qt (7.0 l) 7.4 US qt (7.0 l) 7.4 US qt (7.0 l) 8.5 US qt (8.0 l) 8.5 US qt (8.0 l) 1.3 US qt (1.2 l) 1.2 US qt (1.1 l) 1.2 US qt (1.1 l) 1.2 US qt (1.1 l) 1.5 US qt (1.4 l)

Engine with oil filter

Automatic transmission Manual transmission Rear axle

1 MB part no. 001 989 21 03 10
2 MB part no. 001 989 26 03 10

Fuels, coolants, lubricants etc. Recommended engine oils

MB Automatic Transmission Oil1
MB Manual Transmission Oil2
Hypoid gear oil SAE 85 W 90

329

Technical data Fuels, coolants, lubricants etc.

Model C 240 4MATIC C 320 4MATIC C 320 4MATIC Sport C 240 4MATIC C 320 4MATIC C 320 4MATIC Sport

C 230 Kompressor Sport C 240 (all models) C 320 (all models) C 32 AMG

Front axle

Transfer case

Power steering Front wheel hubs Brake system Cooling system

Fuel tank including a reserve of

1 MB part no. 001 989 21 03 10

330

Capacity 0.5 US qt (0.46 l)

Fuels, coolants, lubricants etc. Hypoid gear oil SAE 85 W 90

approx. 0.62 US qt (0.59 l) MB Automatic Transmission Oil1

approx. 1.1 US qt (1.0 l) MB Power Steering Fluid (Pentosin CHF 11S) approx. 2.1 oz (60 g) each High temperature roller bearing grease 0.5 US qt (0.5 l) approx. 8.5 US qt (8.0 l) approx. 6.8 US qt (6.4 l) approx. 6.8 US qt (6.4 l) approx. 15.3 US qt (14.5 l) 16.4 US gal (62.0 l) 2.1 US gal (8.0 l)

MB Brake Fluid (DOT 4+) MB 325.0 Anticorrosion/antifreeze agent

Premium unleaded gasoline: Posted Octane 91 (Avg. of 96 RON/86 MON) Flexible Fuel Vehicle (MY 2003 Mercedes-Benz C 320 models, except those equipped with manual transmission or 4MATIC*): Alternative fuel -- Ethanol fuel (E85)

Technical data Fuels, coolants, lubricants etc.

Fuels, coolants, lubricants etc. R-134a refrigerant and special PAG lubricant oil (never R-12) MB Windshield Washer Concentrate1

Air conditioning system

Model

Capacity

Windshield washer system: Without headlamp cleaning system With headlamp cleaning system* 1 Use MB Windshield Washer Concentrate “S” and water for temperatures above freezing or MB Windshield Washer Concentrate “S” and commercially available

3.2 US qt (3.0 l)

6.4 US qt (6.0 l)

premixed windshield washer solvent/antifreeze for temperatures below freezing. Follow suggested mixing ratios (컄 page 338).

331

Technical data Fuels, coolants, lubricants etc.

Engine oils

Engine oil additives

Brake fluid

Engine oils are specifically tested for their suitability in our engines. Therefore, use only engine oils recommended by Mercedes-Benz. Information on recommended brands is available in the Factory Approved Service Products pam- phlet, or at your authorized Mercedes-Benz Center. Please follow FSS recommendations for scheduled oil changes. Failure to do so could result in engine damage not covered by the Mercedes-Benz Limited Warranty.

Do not blend oil additives with engine oil. They may be harmful to the engine opera- tion. Damage or malfunctions resulting from blending oil additives are not covered by the Mercedes-Benz Limited Warranty.

Air conditioning refrigerant

R-134a (HFC) refrigerant and special PAG lubricating oil is used in the air condition- ing system. Never use R-12 (CFC) or mineral-based lubricating oil, otherwise damage to the system will occur.

During vehicle operation, the boiling point of the brake fluid is continuously reduced through the absorption of moisture from the atmosphere. Under extremely strenu- ous operating conditions, this moisture content can lead to the formation of bub- bles in the system, thus reducing the sys- tem’s efficiency. Therefore, the brake fluid must be replaced every two years, preferably in the spring. Only brake fluid approved by Mercedes-Benz is recommended. Your authorized Mercedes-Benz Center will provide you with additional information.

332

Premium unleaded gasoline

Fuel requirements

To maintain the engine’s durability and performance, premium unleaded gaso- line must be used. If premium unleaded is not available and low octane fuel is used, follow these precautions: 앫 Have the fuel tank only partially

filled with unleaded regular and fill up with premium unleaded as soon as possible.

앫 Avoid full throttle driving and abrupt

acceleration.

앫 Do not exceed an engine speed of 3000 rpm if the vehicle is loaded with a light load such as two per- sons and no luggage.

앫 Do not exceed 2/3 of maximum accelerator pedal position if the vehicle is fully loaded or operating in mountainous terrain.

Flexible Fuel Vehicles (MY 2003 Mercedes-Benz C 320 models, except those equipped with manual transmis- sion or 4 - MATIC system*) are designed to operate on premium unleaded gasoline or Ethanol fuel (E85) or any mixture of these two. See notes on Flexible Fuel Vehicles (컄 page 334).

Use only premium unleaded meeting ASTM standard D 439: 앫 The octane number (posted at the

pump) must be 91 min. It is an average of both the Research (R) octane num- ber and the Motor (M) octane number: (R+M)/2. This is also known as the ANTI-KNOCK INDEX.

Technical data Fuels, coolants, lubricants etc.

Unleaded gasoline containing oxygenates such as Ethanol, IPA, IBA and TBA can be used provided the ratio of any one of these oxygenates to gasoline does not exceed 10%; MTBE not to exceed 15%. The ratio of Methanol to gasoline must not exceed 3% plus additional cosolvents. Using mixtures of Ethanol and Methanol is not allowed. Gasohol, which contains 10% Ethanol and 90% unleaded gasoline, can be used. These blends must also meet all other fuel requirements, such as resistance to spark knock, boiling range, vapor pressure etc.

333

Damage or malfunctions resulting from poor fuel quality or from blending specific fuel additives are not covered by the Mercedes-Benz Limited Warranty.

Flexible Fuel Vehicles

MY 2003 Mercedes-Benz C 320 models, except those equipped with manual trans- mission or 4MATIC*, are Flexible Fuel Ve- hicles. These vehicles are designed to operate on premium unleaded gasoline or Ethanol fuel (E85), or on any mixture of these two. Ethanol fuel (E85) is a mixture of approxi- mately 85% Ethanol and 15% unleaded gasoline.

Warning!

Ethanol fuel (E85) and its fumes are highly flammable, poisonous and burn easily. Etha- nol fuel can cause serious injuries if ignited or if you come into contact with it or inhale fumes of it. Avoid inhalation of Ethanol fumes and skin contact with Ethanol. Extin- guish all open flames before fueling. Never smoke or create sparks close to Ethanol.

Switching fuels For best performance and driveability it is recommended to use either one or the other fuel. A refueling pattern that alternates between the two different fuels should be avoided if possible.

Technical data Fuels, coolants, lubricants etc.

Gasoline additives

A major concern among engine manufac- turers is carbon build-up caused by gaso- line. Mercedes-Benz recommends only the use of quality gasoline containing additives that prevent the build up of carbon depos- its. After an extended period of using fuels without such additives, carbon deposits can build up especially on the intake valves and in the combustion area, leading to en- gine performance problems such as: 앫 Warm-up hesitation 앫 Unstable idle 앫 Knocking/pinging 앫 Misfire 앫 Power loss Do not blend any specific fuel additives with fuel. This only results in unnecessary cost and may be harmful to engine opera- tion.

334

When switching fuels, make sure that: 앫 Fuel level is below half full. 앫 Fuel level is above reserve (reserve

warning lamp is not lit).

앫 Amount of added fuel is more than

5 gallons (20 liters).

앫 Ignition is off during refill. 앫 Immediately after refueling engine is started and operated for at least five minutes.

These precautions and recommendations are supposed to prevent any difficulties when starting and operating the engine which otherwise may be experienced before the engine has fully adapted to the different fuel. If in spite of these recommendations the engine does not perform properly, adding more gasoline [at least 3 gallons (12 liters)] to the fuel may improve the engine behavior.

Cold weather performance It is possible that starting times will signif- icantly increase at temperatures below 32°F (0°C). At low temperatures the use of a block heater is recommended (see your authorized Mercedes-Benz Center for further information). Rough idling may also be experienced at such temperatures before the engine is fully warmed up.

E85 fuel is unsuitable for use when am- bient temperatures fall below 14°F (-10°C).

Hot weather performance At ambient temperatures above 95°F (35°C) start times may increase and be accompanied by a rough idle following the start.

Technical data Fuels, coolants, lubricants etc.

Cruising range E85 fuel contains less energy per gallon than gasoline. To ensure that engine per- formance with Ethanol fuel is similar to that when using gasoline, the engine must burn more Ethanol fuel. As a result, it is to be expected that the fuel consumption will increase when using E85 compared to gas- oline operation.

Use of E85 may reduce your driving range.

Maintenance Please inform your Mercedes-Benz Center if you use or have used E85 fuel when your vehicle is delivered for maintenance or repairs.

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Technical data Fuels, coolants, lubricants etc.

Coolants

The engine coolant is a mixture of water and anticorrosion/antifreeze, which pro- vides: 앫 Corrosion protection 앫 Freeze protection 앫 Boiling protection (by increasing the

boiling point)

The cooling system was filled at the factory with a coolant providing freeze protection to approximately -22°F (-30°C) and corro- sion protection. If the antifreeze mixture is effective to -22°F (-30°C), the boiling point of the coolant in the pressurized cooling system is reached at approximately 266°F (130°C).

336

The coolant solution must be used year-round to provide the necessary corro- sion protection and increase boil-over pro- tection. You should have it replaced every 15 years or 150000 miles (250000 km), whichever comes first. Coolant system design and coolant used stipulate the replacement interval. The above replace- ment interval is only applicable if MB 325.0 anticorrosion/antifreeze solution or other Mercedes-Benz approved products of equal specification (see Factory Approved Service Products pam- phlet) are used to renew the coolant con- centration or bring it back up to the proper level. To provide important corrosion protection, the solution must be at least 45% anticor- rosion/antifreeze [equivalent to freeze protection to approx. -22°F (-30°C)].

If you use a solution that is more than 55% anticorrosion/antifreeze [freeze protec- tion to approx. -49°F (-45°C)], the engine temperature will increase due to the lower heat transfer capability of the solution. Therefore, do not use more than this amount of anticorrosion/antifreeze. If the coolant level is low, water and MB 325.0 anticorrosion/antifreeze should be used to bring it up to the proper level (have cooling system checked for signs of leakage). Please make sure that the mix- ture is in accordance with label instruc- tions. The water in the cooling system must meet minimum requirements, which are usually satisfied by normal drinking water. If you are not sure about the water quality, con- sult your authorized Mercedes-Benz Center.

Technical data Fuels, coolants, lubricants etc.

Failure to use such anticorrosion/anti- freeze coolant will result in a significantly shortened service life. Therefore, the following product is strongly recommended for use in your vehicle: Mercedes-Benz 325.0 Anticorrosion/Anti- freeze Agent.

Before the start of the winter season (or once a year in hot southern regions), you should have the anticorrosion/antifreeze concentration checked. The coolant is also regularly checked each time you bring your vehicle to your authorized Mercedes-Benz Center for service.

Anticorrosion/antifreeze Your vehicle contains a number of alumi- num parts. The use of aluminum compo- nents in motor vehicle engines necessitates that anticorrosion/antifreeze coolant used in such engines be specifical- ly formulated to protect the aluminum parts.

Anticorrosion/antifreeze quantity

Model

C 230 Kompressor Sport C 240 / C 320 (all models) C 32 AMG

Approx. freeze protection –35°F (–37°C) 4.2 US qt (4.0 l) 4.8 US qt (4.5 l) 7.7 US qt (7.3 l)

–49°F (–45°C) 4.7 US qt (4.4 l) 5.3 US qt (5.0 l) 8.5 US qt (8.0 l)

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Technical data Fuels, coolants, lubricants etc.

Windshield washer and headlamp cleaning* system

Both the windshield and headlamp washer systems are supplied from the windshield washer fluid reservoir. The washer fluid reservoir has a capacity of approx. 앫 6.4 US qt (6.0 l) in vehicles with head-

lamp cleaning system*

앫 3.2 US qt (3.0 l) in vehicles without

headlamp cleaning system

왘 Refill the reservoir with MB Windshield Washer Concentrate “S” and water (or concentrate and commercially avail- able premixed windshield washer sol- vent/antifreeze, depending on ambient temperatures).

Warning!

Washer solvent/antifreeze is highly flamma- ble. Do not spill washer solvent/antifreeze on hot engine parts, because it may burn. You can be seriously burned.

Washer fluid mixing ratio For temperatures above freezing use MB Windshield Washer Concentrate “S” and water: 앫 1 part “S” to 100 parts water

[40 ml “S” to 1 gallon (4 l) water] For temperatures below freezing use MB Windshield Washer Concentrate “S” and commercially available premixed windshield washer solvent/antifreeze: 앫 1 part “S” to 100 parts solvent

[40 ml “S” to 1 gallon (4 l) solvent]

338

Consumer information The following text is published as required of all manufacturers of passenger cars un- der Title 49, Code of U.S. Federal Regula- tions, Part 575 pursuant to the “National Traffic and Motor Vehicle Safety Act of 1966”.

Uniform tire quality grading

Quality grades can be found, where appli- cable, on the tire sidewall between tread shoulder and maximum section width. For example:

Tread wear 200

Traction AA

Temperature

All passenger car tires must conform to federal safety requirements in addition to these grades.

Tread Wear The tread wear grade is a comparative rat- ing based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For ex- ample, a tire graded 150 would wear one and one-half (1/2) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.

Technical data Consumer information

Traction The traction grades, from highest to lowest are AA, A, B, and C. Those grades repre- sent the tire’s ability to stop on wet pave- ment as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction perfor- mance.

Warning!

The traction grade assigned to this tire is based on straight ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteristics.

339

Warning!

The temperature grade for this tire is estab- lished for a tire that is properly inflated and not overloaded. Excessive speed, underin- flation, or excessive loading, either sepa- rately or in combination, can cause excessive heat build-up and possible tire failure.

Technical data Consumer information

Temperature The temperature grades are A (the high- est), B, and C, representing the tire’s resis- tance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high tem- perature can cause the material of the tire to degenerate and reduce tire life, and ex- cessive temperature can lead to sudden tire failure. Grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law.

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ABS

(Antilock Brake System) Prevents the wheels from locking up during braking so that the vehicle can continue to be steered.

Alignment bolt

Metal pin with thread. The centering pin is an aid used when changing a tire to align the wheel with the wheel hub.

BabySmartTM airbag deactivation system

This system detects if a special system compatible child restraint seat is in- stalled on the front passenger seat. The system will automatically deactivate the passenger front airbag when such a seat is properly installed (indicator lamp 7 located in the center con- sole lights up). See your authorized Mercedes-Benz Center for availability.

BabySmartTM compatible child seats Special restraint system for children. The sensor system for the passenger seat prevents deployment of the pas- senger side airbag if a BabySmartTM compatible child seat is installed.

BAS

(Brake Assist System) System for potentially reducing braking distances in emergency braking situa- tions. The system is activated when it senses an emergency based on how fast the brake is applied.

Bi-Xenon headlamps*

Headlamps which use an electric arc as the light source and produce a more intense light than filament headlamps. Bi-Xenon headlamps produce low beam and high beam.

Technical terms

CAC

(Customer Assistance Center) Mercedes-Benz customer service cen- ter, which can help you with any ques- tions about your vehicle and provide assistance in the event of a break- down.

CAN system

(Controller Area Network) Data bus network serving to control vehicle functions such as door locking or windshield wiping.

Cockpit

All instruments, switches, buttons and indicator/warning lamps in the passen- ger compartment needed for vehicle operation and monitoring.

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Technical terms

COMAND*

Engine number

FSS

(Cockpit Management and Data System) Information and operating center for vehicle sound and communications systems, including the radio and navi- gation system, as well as for other optional equipment (CD changer, telephone, etc.).

Control system

The control system is used to call up vehicle information and to change component settings. Information and messages appear in the multifunction display. The driver uses the buttons on the multifunction steering wheel to navigate through the system and to ad- just settings. Cruise control

Driving convenience system for auto- matically maintaining the vehicle speed set by the driver.

The number set by the manufacturer and placed on the cylinder block to uniquely identify each engine pro- duced.

Engine oil viscosity

Measurement for the inner friction (vis- cosity) of the oil at different tempera- tures. The higher the temperature an oil can tolerate without becoming thin, or the lower the temperature it can tol- erate without becoming viscous, the better the viscosity.

ESP

(Electronic Stability Program) Improves vehicle handling and direc- tional stability.

ETD

(Emergency Tensioning Device) Device which deploys in certain frontal and rear collisions exceeding the sys- tem's threshold to tighten the seat belts. ->SRS

(Flexible Service System) Service indicator in the multifunction display that informs the driver when the next vehicle maintenance service is due.

Gear range

Number of gears which are available to the automatic transmission for shifting. The automatic gear shifting process can be adapted to specific operating conditions using the selector lever.

GPS

(Global Positioning System) Satellite-based system for relaying geographic location information to and from vehicles equipped with special re- ceivers. Employs CD digital maps for navigation.

Instrument cluster

The displays and indicator/warning lamps in the driver’s field of vision, in- cluding the tachometer, speedometer and fuel gauge.

342

Kickdown

Menu

Depressing the accelerator past the point of resistance shifts the transmis- sion down to the lowest possible gear. This very quickly accelerates the vehi- cle and should not be used for normal acceleration needs.

Lock button

Button on the door which indicates whether the door is locked or un- locked. Pushing the lock button down on an individual door from inside will lock that door.

Memory function*

Used to store three individual seat, steering wheel and mirror positions for each key.

The control system displays are ar- ranged in menus. Each menu contains a number of commands for particular systems. In the Audio menu, for exam- ple, you will find the commands SELECT RADIO STATION or OPERATE CD PLAYER. Using commands you can directly change the settings for your vehicle.

MON

(Motor Octane Number) The Motor Octane Number for gasoline as determined by a standardized meth- od. It is an indication of a gasoline's ability to resist undesired detonation (knocking). The average of both the MON (Motor Octane Number) and ->RON (Research Octane Number) is posted at the pump, also known as ANTI-KNOCK INDEX.

Technical terms

Multifunction display

The display field in the instrument clus- ter used to present information provid- ed by the control system.

Multifunction steering wheel

Steering wheel with buttons for operat- ing the control system.

Overspeed range

Engine speeds within the red marking of the tachometer dial. Avoid this en- gine speed range, as it may result in se- rious engine damage that is not covered by the Mercedes-Benz Limited Warranty.

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Technical terms

Poly-V-belt drive

Remote Vehicle Diagnostics

Shift lock

Drives engine-components (alternator, AC compressor, etc.) from the engine.

Power train

Collective term designating all compo- nents used to generate and transmit motive power to the drive axles, includ- ing 앫 engine 앫 clutch/torque converter 앫 transmission 앫 transfer case* 앫 drive shaft 앫 axle shafts/axles

Program mode selector switch

Used to switch the automatic transmis- sion between standard operation S and winter operation W.

Transmission of vehicle data and cur- rent location to the Mercedes-Benz Customer Assistance Center for sub- scribers to Tele Aid service.

Restraint systems

Seat belts, belt tensioners, airbags and child restraint systems. As indepen- dent systems, their protective func- tions complement one another.

RON

(Research Octane Number) The Research Octane Number for gaso- line as determined by a standardized method. It is an indication of a gaso- line's ability to resist undesired detona- tion (knocking). The average of both the ->MON (Motor Octane Number) and RON (Research Octane Number) is posted at the pump, also known as ANTI-KNOCK INDEX.

When the vehicle is parked, this lock prevents the transmission selector le- ver from being moved out of position P without key turned and brake pedal depressed.

SRS

(Supplemental Restraint System) Seat belts, emergency tensioning de- vice and airbags. Though independent systems, they are closely interfaced to provide effective occupant protection.

344

Technical terms

Tele Aid System

Telematics*

VIN

(Telematic Alarm Identification on Demand) The Tele Aid system consists of three types of response: automatic and man- ual emergency, roadside assistance and information. Tele Aid is initially ac- tivated by completing a subscriber agreement and placing an acquain- tance call. The Tele Aid system is operational pro- viding that the vehicle’s battery is charged, properly connected, not dam- aged and cellular and GPS coverage is available.

A combination of the terms “telecom- munications” and “informatics”.

Tightening torque

Force times lever arm (e.g. a lug wrench) with which threaded fasteners such as wheel bolts are tightened.

Tire speed rating

Part of tire designation; indicates the speed range for which a tire is ap- proved.

Traction

Force exerted by the vehicle on the road via the tires.

(Vehicle Identification Number) The number set by the manufacturer and placed on the body to uniquely identify each vehicle produced.

Voice control system*

Voice control system for car phones, portable cell phones and audio sys- tems (radio, CD, etc.).

345

346

A ABS 23, 73, 341

ABS control 74
Malfunction indicator lamp 257
Messages in display 262
Warning lamp 257

Accelerator position, automatic

transmission 143

Accident

In case of 50

Activating

Air conditioning (cooling) 154, 163
Air recirculation mode 152, 160
Anti-theft alarm system 79
Automatic climate control* 157
Central locking (control system) 129
Charcoal filter 161
Climate control 149
Climate control system 153
Defrosting 151
Easy-entry/exit feature* 129
ESP 77
Exterior headlamps 47
Exterior lamps 102
Exterior rear view mirror parking position* 145

Hazard warning flasher 104
Headlamps 47
High beams 104
Ignition 31
Immobilizer 53, 79
Rear fog lamp 102
Rear window defroster 153, 162
Residual heat 163
Seat heater* 97
Tow-away alarm 80
Windshield wipers 48

Adding

Coolant 239