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164
Breakdown assistance
Slackening and tightening wheel bolts
Slacken the wheel bolts before jacking up the vehicle.
Slackening wheel bolts
– Push the wheel wrench* fully onto the wheel bolt
– Grasp the end of the wrench* and turn the bolt about one turn to the left
fig.
137.
Tightening wheel bolts
– Push the wheel wrench* fully onto the wheel bolt
– Grasp the end of the wrench* and turn the bolt to the right until it is tight.
WARNING
Slacken the wheel bolts only a little (about one turn) as long as the vehicle has
not yet been lifted with the lifting jack* - risk of accident!
Note
Apply pressure carefully with your foot to the end of the wrench* if it proves difficult
to slacken the bolts. Hold tight on the vehicle when doing this and ensure that you have
a steady position.
7)
Use the appropriate adapter for slackening and tightening the safety wheel bolts page 165.
Fig. 137 Changing a wheel: Slackening
wheel bolts
7)
.
7)
.
Raise vehicle
You have to raise the vehicle with the lifting jack* in order to be able to
take off the wheel.
Position the lifting jack* by selecting the jacking point which is closest to the wheel to
fig.
be removed
138. The jacking point is located directly below the engraving in the
lower sill. The engraving is only visible after opening the door.
– Position the lifting jack* below the jacking point and move it up until its claw is
positioned directly below the vertical web of the lower sill.
– Align the* lifting jack* so that its claw grasps the web of the lower sill
A
base plate
is resting flat on the floor.
B
– Turn the lifting jack* up further until the wheel is just clear of the ground.
Ground which is soft and slippery below the base plate of the lifting jack* can cause
the vehicle to slip off the lifting jack*. It is therefore always necessary to place the lifting
jack* on a solid surface or use a wide and stable base. Use a non-slip base (e.g. a
rubber foot mat) if the surface is smooth, such as cobbled stones, a tiled floor, etc.
WARNING
Always raise the vehicle with the doors closed - risk of injury!
Take suitable measures to prevent the base of the lifting jack* from slipping
off - risk of injury!
Fig. 138 Changing a wheel: Jacking
points for positioning lifting jack
A
and the
A
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