lffl!I.___W __ h_a_ t_ d_ o_ I_ d_ o_ n_ o_w_ ? _____________________________________________ _
- Disengage and lower the floor panel before you close the
luggage compartment lid again.
Storing the replaced wheel
-Place the replaced wheel inside the spare wheel well in the
luggage compartment.
Tighten the knurled retaining screw clockwise to secure
the wheel in place.
- Disengage and lower the floor panel before you close the
luggage compartment lid again.
& WARNING
Loose items in the passenger compartment can cause serious
personal injury during hard braking or in an accident.
• Never store the spare wheel or jack and tools in the passenger
compartment.
• Always store all jacking equipment, tools, and the spare wheel
in the luggage compartment.
• Tighten the knurled retaining screw for the spare wheel
securely.
[ i] Tips
Check the inflation pressure of the spare tire periodically to keep the
tire ready for use.•
Changing a wheel
Before changing a wheel
Observe the following precautions for your own and your
passenger's safety when changing a wheel.
- After you experience a tire failure, pull the car well away
from moving traffic and try to reach
level ground before
you stop :::> & .
- All passengers should
leave the car and move to a safe
location (for instance, behind the guardrail) :::>& .
- Engage the
parking brake to prevent your vehicle from
rolling unintentionally:::> &.
- Move
selector lever to position P :::> & .
- If you are towing a trailer: unhitch the trailer from your
vehicle.
- Take the
jack and the spare tire out of the luggage
compartment:::>
page 318.
& WARNING
You or your passengers could be injured while changing a wheel if
you do not follow these safety precautions:
• If you have a flat tire, move a safe distance off the road. Turn
off the engine, turn the emergency flashers on and use other
warning devices to alert other motorists.
• Make sure that passengers wait in a safe place away from the
vehicle and well away from the road and traffic.
• To help prevent the vehicle from moving suddenly and possibly
slipping off the jack, always fully set the parking brake and block
the wheel diagonally opposite the wheel being changed. When
one front wheel is lifted off the ground, placing the Automatic
~
What do I do now? Ill
----------------
& WARNING (con tinued)
Trans missio n in "P " (Pa rk) w ill not pre ve nt the vehicle from
mo ving .
• Befo re you ch an ge a wheel , be s ure the ground i s le ve l an d
firm . If ne cess ary, us e a sturdy b oard und er the jack.
• Aft er in st a llin g the sp are wheel , make sure that you repl ace
the flat tire /wheel in it s storage area prop erly and tight en the
knurled ret ain ing s crew se cu rel y.•
Changing a wheel
When you change a wheel, follow the sequence described
below step-by-step and in exactly that order .
1. Activate the vehicle jack mode (only vehicles with Adaptive
Air Suspension) =>
page 170.
2. Remove the decorative wheel cover *. For more details see
also =>
page 322, "Decorative wheel covers" .
3 . Loosen the
wheel bolts => page 322.
4. Locate the proper mo unti ng point for the jack and align
the jack below that point=>
page 323.
5. Lift the car with the jack=> page 323.
6. Remove the wheel with the flat tire and then install the
spare =>
page 324.
7. Tighten all wheel bolts lightly.
8 .
Lower the vehicle with the jack.
9. Use the wheel bolt wrench and
firmly t ighten all wheel
bolts =>
page 322.
10. Replace the decorative wheel cover *.
Safety first
1 1. Deactivate the vehicle jack mode (only vehicles with
Adaptive Air Suspens ion) =>
page 170 .
& WARNING
Alwa ys re ad and f ollow all WARNINGS and information ~ & in
" Ra ising the vehicl e" on pag e
32 3 and ~ pag e 325. •
After changing a wheel
A wheel change is not complete without the doing the
following .
-Store and secure the wheel you replaced in the spare
wheel well .
- Replace the tools and the jack in the ir proper location.
- Check the tir e pr essur e on the spare wheel immediately
after mounting it .
- As soon as possib le, have the
tighten ing torques on a ll
wheel bolts checked with a torque wrench . The correct
tightening torque is 90 ft lb (120 Nm) .
- Have the flat tire
replaced as soon as possible.
[ i ] Tips
• If you not ic e that the wheel bolts are corroded and difficu lt to turn
wh ile chang ing a tire, they should be replaced before you check the
tightening torque .
• Drive at reduced speed until you have the tighten ing torques
checked. •
Vehicle care Do-it-yourself service Technical data
