314 Operation
Tires and wheels
Checking tire inflation pressure 
manually
Follow the steps below to achieve correct 
tire inflation pressure:
Remove the cap from the valve on one 
tire.
Firmly press a tire gauge onto the 
valve.
Read tire inflation pressure on tire 
gauge and check against the recom-
mended tire inflation pressure on the 
Tire and Loading Information placard 
on the driver’s door B-pillar 
(
page 307) or, if available, the tire in-
flation pressure label on the inside of 
the fuel filler flap. If necessary, add air 
to achieve the recommended tire infla-
tion pressure.
Install the valve cap.
Repeat this procedure for each tire.
Warning!G
Follow recommend tire inflation pressures.
Do not underinflate tires. Underinflated tires 
wear excessively and/or unevenly, 
adversely affect handling and fuel economy, 
and are more likely to fail from being over-
heated.
Do not overinflate tires. Overinflated tires 
can adversely affect handling and ride 
comfort, wear unevenly, increase stopping 
distance, and result in sudden deflation 
(blowout) because they are more likely to 
become punctured or damaged by road 
debris, potholes etc.
Do not overload the tires by exceeding the 
specified load limit as indicated on the Tire 
and Loading Information placard on the 
driver’s door B-pillar. Overloading the tires 
can overheat them, possibly causing a 
blowout. Overloading the tires can also 
result in handling or steering problems, or 
brake failure.
iIf you have overfilled the tire, release tire in-
flation pressure by pushing the metal stem of the 
valve with e.g. a tip of a pen. Then recheck the 
tire inflation pressure with the tire gauge. 
396 Practical hints
Unlocking/locking in an emergency
Insert mechanical key 2 into the 
driver’s door lock until it stops.
Turn mechanical key 2 clockwise to 
position1.
The driver’s door is locked.
Turn back mechanical key 2 and 
remove it from driver’s door lock.Manually unlocking the gear selector 
lever (automatic transmission*)
In case of power failure, the gear selector 
lever can be manually unlocked, e.g. to tow 
the vehicle.
1Gear selector lever cover
2Release
Insert flat, blunt object (e.g. screw-
driver) into the left edge of cover1 at 
the position indicated by the arrows.
Loosen cover1 using this object.
Using your hands, pull cover1 out 
and remove.
Push down and hold release2 in 
direction of arrow.
Simultaneously move gear selector 
lever out of positionP.
The gear selector lever is unlocked 
now.1Locking
2Mechanical key
iThis procedure does not arm the anti-theft 
alarm system, nor does it lock the fuel filler flap 
and the storage compartments.
iThe gear selector lever is locked again as 
soon as you place it in positionP again.