On a slight downhill slope
If it is necessary to change a wheel on a slight
downhill slope, place chocks and other suitable
objects, for example stones, under the wheels of
the front and rear axles against the direction of
roll.
Locking wheel bolts
Principle
The wheel locking bolts have a special coding.
The blots can only be released with the adapter
that matches the coding.
Overview
The adapter of the locking wheel bolts can be
found in the on-board tool kit or in an oddments
tray in the on-board tool kit.
▷ Locking wheel bolt, arrow 1.
▷ Adapter, arrow 2.
Unscrewing
1.
Place the adapter on the locking wheel bolt.
2. Unscrew the locking wheel bolt.
3. After unscrewing the wheel stud, remove the
adapter again.
Screwing on
1. Place the adapter on the locking wheel bolt. If
necessary, turn the adapter until it fits on the
locking wheel bolt.
2. Screw on the locking wheel bolt. The tighten‐
ing torque is 140 Nm.
3. After screwing on the wheel stud, remove the
adapter again and stow it.
Preparing the vehicle
▷ Park the vehicle on firm and non-slip ground
at a safe distance from traffic.
▷ Switch on the hazard warning lights.
▷ Apply the parking brake.
▷ Engage a gear or select selector lever posi‐
tion P.
▷ As soon as the traffic permits, have all vehicle
occupants get out of the vehicle and guide
them out of the danger area, for example be‐
hind the crash barrier.
▷ Depending on the equipment, take the wheel
change tools and, if necessary, the spare
wheel out of the vehicle.
▷ If applicable, set up warning triangle or flash‐
ing light at the correct distance.
▷ Additionally protect the vehicle against rolling
away.
▷ Undo the wheel studs by half a turn.
Seite 390
MOBILITY
Wheels and tyres
390
Online Edition for Part no. 01405A1EA53 - X/20
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