2002 MERCEDES-BENZ C230 KOMPRESSOR COUPE index

327 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Changing wheelsMove vehicle to a level area which is a safe distance
from the roadway.
1. Set parking brake and turn on hazard warning
flasher.
2. Move selector lever to position “P” and turn off
engine (manual transmission to 1st or reverse gear).
3. Prevent vehicle from rolling away by blocking
wheels with wheel chocks (not supplied with
vehicle) or sizable wood block or stone. When
changing a wheel on a hill, place chocks on the
downhill side blocking both wheels of the other
axle. On an level road, place one chock in front of
and one behind the wheel that is diagonally
opposite to the wheel being changed.
Wa r n i n g !
The jack is designed exclusively for jacking up the
vehicle at the jack take-up brackets built into either
side of the vehicle. To help avoid personal injury,
use the jack only to lift the vehicle during a wheel
change. Never get beneath the vehicle while it is
supported by the jack. Keep hands and feet away
from the area under the lifted vehicle. Always
firmly set parking brake and block wheels before
raising vehicle with jack.
Do not disengage parking brake while the vehicle is
raised. Be certain that the jack is always vertical
when in use, especially on hills. Always try to use
the jack on level surface. Be sure that the jack arm
is fully seated in the jack take-up bracket. Always
lower the vehicle onto sufficient capacity
jackstands before working under the vehicle.

328 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
4. Remove the two-piece wheel wrench from the
vehicle tool kit and assemble (see page 323).
5. Using the wrench, loosen but do not yet remove the
wheel bolts.6. Place jack on firm ground. Position jack (1) under
the take-up bracket (2) so that it is always vertical
(plumb-line) as seen from the side, even if the
vehicle is parked on an incline.
The jack take-up brackets are located directly
behind the front wheel housings and in front of the
rear wheel housings.
7. Jack up the vehicle until the wheel is clear of the
ground. Never start engine while vehicle is raised.
P40.10-2473-26

329 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index 8. Unscrew upper-most wheel bolt and install
alignment bolt (1) supplied in the tool kit. Remove
the remaining bolts. Keep bolt threads protected
from dirt and sand.
9. Remove wheel. Grip wheel from the sides. Keep
hands from beneath the wheels.1Wheel bolt for light alloy rims
2Wheel bolt for spare wheel rim size 4
1/2 Bx15H2
Note:
Wheel bolts (2) must be used when mounting spare
wheel.
P40.10-2474-26
Wa r n i n g !
Be sure to use the original length wheel bolts when
remounting the original wheel after it has been
repaired.
P40.10-0388-26
12

330 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
10. Clean contact surfaces of wheel and wheel hub.
Install wheel on wheel hub. Insert wheel bolts and
tighten them slightly.
To avoid paint damage, place wheel flat against hub
and hold it there while installing first wheel bolt.
Unscrew the alignment bolt to install the last wheel
bolt.11. Lower vehicle and remove jack.
P40.10-2475-26
P40.10-2476-26

331 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index 12. Using the wrench, tighten the five bolts evenly,
following the sequence illustrated, until all bolts are
tight.
Observe a tightening torque of 80 ft.lb. (110 Nm).Notes:
Before storing the jack, it should be fully collapsed, with
handle folded in.
For proper storage of vehicle jack see page 321.
P40.10-2477-26

332 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Wheel bolts
1Wheel bolt for light alloy rims
2Wheel bolt for spare wheel rim size 4
1/2 Bx15H2P40.10-0388-26
12
Wa r n i n g !
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.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 mounting bolts.

333 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index Inflating the collapsible spare tire
The air pump is located inside the wheel well in the
trunk, see page 322.
1Filler hose
2Electrical plug
3Pressure gauge with vent screw1. Remove air pump from storage compartment inside
trunk.
2. Open lid and pull out air hose with pressure gauge
and electrical plug.
Observe instructions on air pump label.
3. Unscrew tire valve cap from spare wheel tire valve.
4. Screw filler hose onto tire valve.
5. Plug air pump electrical plug into vehicle cigar
lighter.
6. To switch on air pump, turn key in steering lock to
position 1.
Important!
Do not start engine.
P40.10-2124-26
1
0
45 6max. 6 min
A 170 584 01 38 AIR COMPRESSOR 23
Mercedes-Benz
2
3
2 1
1
2,5 bar
36 psi1
0 23
4
5
620PSI
BAR40
60
80
LUFTPRESSER12
12
3
Wa r n i n g !
To prevent possible injury when unscrewing air
pump filler hose from tire valve after inflating the
tire, use a rag since the tire valve could be hot.

334 Tires, Wheels
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
7. Operate air pump (approximately 5 minutes) until
pressure gauge displays 36 psi (2.5 bar).
8. To switch off air pump, turn key in steering lock to
position 0.
9. Unscrew filler hose from tire. Reinstall tire valve
cap.
Note:
Excessive tire air pressure should be released using the
vent screw.Storing spare wheel in wheel well
Deflate spare tire:
1. Unscrew valve stem removal tool, which is a part of
the valve cap, from tire valve.
2. Using the valve stem removal tool, open tire valve
slightly by turning the tire valve insert
counterclockwise to release air pressure.
3. When the tire air pressure has been released,
remove tire valve insert (protect it from dirt and
sand) using the previously removed tire valve cap.
4. Once all air is out of the tire, and the tire has
collapsed to its original shape, reinstall the tire
valve insert and valve cap.
Place air pump and spare wheel in wheel well and
secure them.