337 Tires, Wheels
Te ch n ica l
data Instruments 
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cluster displayPractical hintsCar care Index Wheels
Replace rims or tires with the same designation, 
manufacturer and type as shown on the original part. 
See your authorized Mercedes-Benz Center for further 
information.
See your 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.
Tire replacement
Front and rear tires should be replaced in sets. Rims 
and tires must be of the correct size and type. For 
dimensions, see “Technical Data”.
We recommend that you break in new tires for approx. 
60 miles (100 km) at moderate speed.It is imperative that the wheel mounting bolts be 
fastened to a tightening torq ue of 110 ft.lb. (150 Nm) 
whenever wheels are mounted.
For rim and tire specifications, refer to “Technical Data”.
Wa r n i n 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, use only 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. 
339 Tires, Wheels
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index Spare wheel CL 55 AMG and Sport Package
Important!
The spare wheel rim size is 7
1/2J x 17 H 2 with tire size 
225/55 R17 97H.
The spare wheel rim is weight optimized and has a 
limited service life of 12 000 miles (20 000 km) use 
before a standard wheel rim must replace it.
In the case of a f lat tire, you may temporarily use the 
spare wheel, when observing the following restrictions:
•Do not exceed vehicle speed of 50 mph (80 km/h)
•Drive to the nearest tire repair facility to have the 
flat tire repaired or replaced as appropriate.
•Do not operate vehicle with more than one spare 
wheel mounted.
If the arrow on tire side wall does not point in direction 
of vehicle forward movement when using the spare 
wheel, observe the following restriction:
Unidirectional tires must always be mounted with arrow 
on tire sidewall pointing in direction of vehicle forward 
movement.For rim and tire specifications, refer to “Technical Data”.
Wa r n i n g !
The spare wheel rim is for temporary use only. Use 
for over a total of 12 000 miles (20 000 km) 
(aggregate of all uses) may cause wheel rim failure 
leading to an accident and possible injuries.The dimensions of the spare wheel are different 
from those of the road wheels. As a result, the 
vehicle handling characteristics change when 
driving with a mounted spare wheel.The spare wheel should only be used temporarily, 
and replaced with a regular road wheel as quick as 
possible.