Page 305 of 474

304 OperationTires and wheelsSee an authorized Mercedes-Benz Center 
for information on tested and 
recommended rims and tires for summer 
and winter operation. They can also offer 
advice concerning tire service and 
purchase.
Retreaded tires are not tested or recom-
mended by Mercedes-Benz, since previous 
damage cannot always be recognized on 
retreads. The operating safety of the 
vehicle cannot be assured when such tires 
are used.
Important guidelines
Only use sets of tires and rims of the 
same type and make.
Tires must be of the correct size for the 
rim.
Break in new tires for approximately 
60 miles (100 km) at moderate 
speeds.
Regularly check the tires and rims for 
damage. Dented or bent rims can 
cause tire inflation pressure loss and 
damage to the tire beads.
If vehicle is heavily loaded, check tire 
inflation pressure and correct as 
required.
Do not allow your tires to wear down 
too far. Adhesion properties on wet 
roads are sharply reduced at tread 
depths under
1/8in (3 mm).
When replacing individual tires, you 
should mount new tires on the front 
wheels first (on vehicles with 
same-sized wheels all around).
Warning!
G
Replace rims or tires with the same designa-
tion, manufacturer and type as shown on the 
original part. See an authorized 
Mercedes-Benz Center for further informa-
tion. If incorrectly sized rims and tires are 
mounted:
The wheel brakes or suspension 
components can be damaged.
The operating clearance of the wheels 
and the tires may no longer be correct.
Warning!
G
Worn, old tires can cause accidents. If the 
tire tread is badly worn, or if the tires have 
sustained damage, replace them.
When replacing rims, only use genuine 
Mercedes-Benz wheel bolts specified for the 
particular rim type. Failure to do so can 
result in the bolts loosening and possibly an 
accident. 
     
        
        Page 418 of 474

417 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.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.
!Use flatbed or wheel lift/dolly equip-
ment with the SmartKey in the starter 
switch turned to position0.
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* 
(page 95) and deactivate the auto-
matic central locking (
page 152).
!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 (SmartKey in starter switch 
position0 or1). 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 gear selector lever 
must be in positionN (manual trans-
mission: gears disengaged) and the 
SmartKey must be in starter switch 
position2.
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). 
     
        
        Page 420 of 474

419 Practical hints
Towing the vehicle
Warning!
G
With the engine not running, there is no 
power assistance for the brake and steering 
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 ve-
hicle. Adapt your driving accordingly.
!When towing the vehicle with all wheels 
on the ground, please note the 
following:
With the automatic central locking 
activated and the SmartKey in starter 
switch position2, 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* 
(page 95).
To prevent the vehicle doors from 
locking, deactivate the automatic 
central locking (
page 152).
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.
iIf the battery is disconnected or 
discharged
the SmartKey will not turn in the 
starter switch. For more informa-
tion, see “Battery” (
page 412) 
and “Jump starting” (page 415).
the gear selector lever will remain 
locked in positionP. For informa-
tion on manually unlocking the 
transmission gear selector lever 
see (
page 392).