Lug bolt lock
Concept
The wheel lug bolts have a special coding.
The lug bolts can only be released with the
adapter which matches the coding.
Overview
The adapter of the lug bolt lock is located in
the onboard vehicle tool kit, refer to
page 283.
– Lug bolt, arrow 1.
– Adapter, arrow 2.
Unscrewing
1. Attach the adapter to the lug bolt.
2. Unscrew the lug bolt.
3. Remove the adapter after unscrewing
the lug bolt.
Screwing on
1. Attach the adapter to the lug bolt. If
necessary, turn the adapter until it fits
on the lug bolt.
2. Screw on the lug bolt. The tightening
torque is 140 Nm.
3. Remove the adapter and stow it after
screwing on the lug bolt.
Preparing the vehicle
– Park the vehicle on solid and non-slip
ground at a safe distance from traffic.
– Switch on the hazard warning system.
– Set the parking brake.
– Engage a gear or move the selector lever
to position P.
– As soon as permitted by the traffic flow,
have all vehicle occupants get out of the
vehicle and ensure that they remain out-
side the immediate area in a safe place,
such as behind a guardrail.
– Depending on the vehicle equipment,
get wheel change tools and, if necessary,
the emergency wheel from the vehicle.
– If necessary, set up a warning triangle
or portable hazard warning light at an
appropriate distance.
– Secure the vehicle additionally against
rolling.
– Loosen the lug bolts a half turn.
Jacking points for the vehicle jack
The jacking points for the vehicle jack are
located at the marked positions.
Seite 268
MOBILITY Wheels and tires
268
Online Edition for Part no. 01405A1E4E3 - II/20
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