348 Tires, Wheels
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
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 
approximately 60 miles (100 km) at moderate speed.It is imperative that the wheel mounting bolts be 
fastened to a tightening torque 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. 
355 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 110 ft.lb. (150 Nm).
13. Ensure proper tire pressure.
Notes:
Before storing the jack, the jack arm must be lowered 
almost to the base of the jack.
For proper storage of vehicle jack see page 346.
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.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 spare wheel should only be used temporarily, 
and replaced with a regular road wheel as quick as 
possible.S 55 AMG and Sport Package:
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.