Page 296 of 464

296 OperationTires and wheels
Tires and wheelsSee your authorized Mercedes-Benz 
Center for information on tested and rec-
ommended rims and tires for summer and 
winter operation. They can also offer ad-
vice 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. Mercedes-Benz can therefore 
not assure the operating safety of the vehi-
cle when such tires are used.Warning!
G
Replace rims or tires with the same designa-
tion, manufacturer and type as shown on the 
original part. See your authorized 
Mercedes-Benz Center for further informa-
tion. If incorrectly sized rims and tires are 
mounted:
The wheel brakes or suspension compo-
nents can be damaged.
The correct operating clearance of the 
wheels and tires is no longer guaran-
teed.
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 re-
sult in the bolts loosening and possibly an 
accident. 
     
        
        Page 390 of 464

390 Practical hintsTowing the vehicle
Towing the vehicleTowing the vehicle
Mercedes-Benz recommends that the vehi-
cle be transported with all wheels off the 
ground using flatbed or appropriate wheel 
lift/dolly equipment.When circumstances do not permit the 
recommended towing methods, the vehi-
cle may be towed with all wheels on the 
ground or front wheels raised 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 SmartKey in 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 84) and the automatic central 
locking (
page 149).
!If the vehicle is towed with the front 
axle raised, the engine must be shut off 
(SmartKey in starter switch position0 
or1). Otherwise, the ESP will immedi-
ately 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 positionN 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 dis-
tances up to 30 miles (50 km) and at a 
speed not to exceed 30 mph (50 
km/h). 
     
        
        Page 392 of 464

392 Practical hintsTowing the vehicle
Installing towing eye bolt
Towing eye bolt CLK 320/CLK 500
1Cover on right side of front bumper2Cover on right side of rear bumper
To remove cover:
Press mark on cover in direction of ar-
row.
Lift cover off to reveal threaded hole for 
towing eye bolt.
The towing eye bolt is supplied with the 
tool kit (located in the compartment under-
neath the trunk floor).
Screw towing eye bolt to its stop and 
tighten with lug wrench.
To reinstall cover:
Fit cover and snap into place.
!When towing the vehicle with all wheels 
on the ground, please note the follow-
ing:
With the automatic central locking acti-
vated and the SmartKey in starter 
switch position2, or KEYLESS-GO* 
start/stop button in position2, the ve-
hicle doors lock if the left front wheel 
as well as the right rear wheel are turn-
ing at vehicle speeds of approx. 9 mph 
(15 km / h) or more.
Switch off the tow-away alarm 
(page 84).
To prevent the vehicle door locks from 
locking, deactivate the automatic cen-
tral locking (
page 149). 
Towing of the vehicle should only be 
done using the properly installed tow-
ing eye bolt. Never attach tow cable, 
tow rope or tow rod to the vehicle chas-
sis, frame or suspension parts.
iThe gear selector lever will remain 
locked in positionP and the SmartKey 
will not turn in the starter switch if the 
battery is disconnected or discharged. 
See notes on the battery (
page 385) 
or on jump starting (
page 388).
Manually unlocking gear selector lever 
(
page 352)