
247 Tires, Wheels
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index 6. Place jack on firm ground. Position the jack under 
t he take-up bracket so t hat it is always ve rtical 
(plumb-line) as seen from the side, even if the 
vehicle is parked on an incline.
7. Open jack further until jack arm end seats firmly in 
the take-up bracket and its base sits sq uarely on the 
ground. Jack up the vehicle until the wheel is clear 
of the ground. Never start engine while vehicle is 
raised.8. Unscrew and remove all wheel bolts. Keep bolt 
threads protected from dirt and sand.
9. Remove wheel. Grip wheel from the sides. Keep 
hands from beneath the wheels.
Clean contact surfaces of wheel and wheel hub. 
Install spare wheel on wheel hub. Insert wheel bolts 
and tighten them slightly.
10. Lower vehicle to ground. Remove jack.
Before storing the jack, it should be fully collapsed, with 
handle folded in.
For proper storage of jack see page 237. 

248 Tires, Wheels
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Using the wrench, tighten the five bolts evenly, 
following the sequence illustrated, until all bolts are 
tight. Observe a tightening torque of 110 ft.lb. (150 Nm).
Ensure proper tire pressure.Notes:
The removed road wheel cannot be stored in the 
space-saver wheel carrier or inside the storage 
compartment in the rear cargo area (ML 55 AMG), but 
should be transported in the rear cargo compartment 
wrapped in a protective cover supplied with the vehicle. 
The protective cover is located in the rear cargo 
compartment behind the cover in the right side trim 
panel.
Model ML 55 AMG:
Store air pump in its proper location. Close and latch the 
spare wheel cover, see page 239.
1
2
3
4
5
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. 

249 Tires, Wheels
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index Inflating the space-saver tire (ML 55 AMG only)
1. Remove air pump from compartment behind the 
space-saver spare wheel.
2. Open lid (arrow) and pull out filler hose (1) with 
pressure gauge and electrical plug (2). Observe 
manufacturer’s instructions.
3. Unscrew tire valve cap from space-saver tire valve.
4. Screw filler hose (1) onto space-saver tire valve.5. Plug air pump electrical plug (2) into electrical 
outlet in front passenger footwell or rear cargo 
compartment.
6. Start the engine and switch on the air pump.
7. Operate air pump (approximately 8 minutes) until 
pressure gauge displays 61 psi (4.2 bar).
8. Switch off air pump and turn off the engine.
9. Unscrew filler hose from space-saver tire. Reinstall 
tire valve cap.
Note: 
Excessive tire air pressure should be released using the 
vent screw.
3
12
Wa r n i n g !
When working on the vehicle with the engine 
running, always set the parking brake in addition 
to shifting the gear selector lever to position “P”.Wa r n i n g !
To prevent possible injury when unscrewing air 
pump filler hose from space-saver tire valve after 
inflating the tire, use a rag since the tire valve 
could be hot. 

250 Tires, Wheels
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Tire inflation pressure
A table (see fuel filler flap) lists the tire inflation 
pressures specified for Mercedes-Benz recommended 
tires as well as for the varying operating conditions.
Important!
Tire pressure changes by approximately 1.5 psi (0.1 bar) 
per 18°F (10°C) of air temperature change. Keep this in 
mind when checking tire pressure inside a garage – 
especially in the winter.
Example:
If garage temperature = approximately +68°F (+20°C) 
and ambient temperature = approximately +32°F (0°C) 
then the adjusted air pressure = specified air pressure 
+3 psi (+0.2 bar).Tire pressures listed for light loads are minimum values 
offering high driving comfort. Increased inflation 
pressures for heavy loads produce favorable handling 
characteristics with lighter loads and are perfectly 
permissible. The ride of the vehicle, however, will 
become somewhat harder.
Tire temperature and pressure increase with the vehicle 
speed. Tire pressure should therefore only be checked 
and corrected on cold tires. Correct tire pressure in 
warm tires only if pressure has dropped below the 
pressure listed in the table and the respective operating 
conditions are taken into consideration.
An underinf lated tire due to a slow leak (e.g. due to a 
nail in the tire) may cause damage such as tread 
separation, bulging etc.. Regular tire pressure checks 
(including the spare tire) at intervals of no more than 
14 days are therefore essential. 

251 Battery
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index If a tire constantly loses air, it should be inspected for 
damage.
The spare tire should be checked periodically for 
condition and inflation. Spare tire will age and become 
worn over time even if never used, and thus should be 
inspected and replaced when necessary.Battery
Important!
Battery replacement information:
The maintenance-free battery is located in the engine 
compartment. 
The service life of the battery is dependent on its 
condition of charge. The battery should always be kept 
sufficiently charged, in order to last an optimum length 
of time.
Wa r n i n g !
Do not overinflate tires. Overinflating tires can 
result in sudden deflation (blowout) because they 
are more likely to become punctured or damaged 
by road debris, potholes etc.. Follow recommended 
inflation pressures.Do not overload the tires by exceeding the specified 
vehicle capacity weight (as indicated by the label 
on the driver’s door latch post). Overloading the 
tires can overheat them, possibly causing a 
blowout.
Wa r n i n g !
Failure to follow these instructions can result 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.. 

288 Technical data
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index
Rims – Tires
1 Must not be used with snow chains.Model ML 320 ML 430 ML 55 AMG
Rims (light alloy)
Wheel offset8 J x 16 H 2 ET62
2.4 in (62 mm)8
1/2 J x17 H2 ET52
2.0 in (52 mm)9 J x 18 H2 ET 52
2.0 in (52 mm)
All season tires:
Radial-ply tires 255 / 65 R 16 109H 275 / 55 R 17 109H 285 / 50 R 18 109W
1
Spare wheel
Rim (standard equipment)
Steel
Wheel offset4 J x 18 H 2 ET0
0 in (0 mm)4 J x 18 H 2 ET0
0 in (0 mm)4 J x 18 H 2 ET0
0 in (0 mm)
Space-saver tire T155 / 90 D18 113M
1
T155 / 90 D18 113M
1
T155 / 90 D18 113M
1 

308 Index
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car careIndex
Remote control  ................................................................. 24
Battery replacement  .................................................270
Changing batteries  ...................................................270
Operation ..................................................................... 26
Synchronizing remote control  ................................ 271
Removable cargo floor plates  ....................................... 129
Replacement keys  ............................................................ 25
Replacing bulbs ..............................................................260
Replacing wiper blade insert  .......................................275
Reporting safety defects  ................................................. 16
Reserve key ................................................................ 24, 25
Roadside assistance ......................................................... 10
Roadside assistance call
See Tele Aid  ............................................................... 148
Roof rack  ......................................................................... 276
SSafety guidelines for the seat belt, emergency 
tensioning retractor and airbag ................................ 63
Screwdriver .....................................................................237
Seat belt warning lamp  .................................................223
Seat belts  ........................................................................... 46
Fastening ...................................................................... 48
Seat belt nonusage warning system  ........................ 47Unfastening .................................................................. 50
Warning lamp  ........................................................... 223
Seat belts and integrated restraint system  .................. 46
Seat bench  ....................................................................... 120
Seats, folding (Third row seats)  ................................... 126
Seats, front  ........................................................................37
Heated seats  .................................................................44
Manual seats  ................................................................39
Power seats  .................................................................. 40
Service indicator
See Flexible service system (FSS)  ............................ 87
Side marker lamp  .......................................................... 264
Skyview Top  ....................................................................109
Emergency operation  .............................................. 273
Sliding/pop-up roof ........................................................107
Emergency operation  .............................................. 272
Express opening  ........................................................108
Synchronizing .......................................................... 272
Snow chains  ....................................................................179
SOS-call
See Tele Aid  ...............................................................148
Space-saver tire
Air pump  ................................................................... 239
Spare parts service  ....................................................... 284
Spare wheel  ................................................................... 242
Space-saver tire  ........................................................ 243