BMW 2 Series Owner's Handbook Manual page 308

MOBILITY
NOTICE
Using an impact screwdriver to loosen or
tighten the locking wheel bolt can damage it.
There is a risk of material damage. Only use
a wheel bolt wrench to loosen and tighten the
locking wheel bolt.
Securing the vehicle against rolling
away
General
The vehicle manufacturer recommends that
the vehicle should additionally be protected
against rolling away during a wheel change.
On a level surface
Place chocks or other suitable objects in front
of and behind the wheel diagonally opposite to
the one being changed.
On a slight downhill gradient
If it is necessary to change a wheel on a slight
downhill gradient, place chocks and other suit-
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Wheels and tyres
Online Edition for Part no. 01405A5E758 - VI/22
able objects, for example stones, under the
wheels of the front and rear axles against the
direction of roll.
Locking wheel bolts
Principle
The locking wheel bolts have a special coding.
The bolts can only be released with an adapter
that matches the coding.
Overview
The adapter of the locking wheel bolts can be
found in the toolkit or in an oddments tray in
the toolkit.
▷ 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 bolt, remove
the adapter again.
Screwing in
1. Place the adapter on the locking wheel bolt.
If necessary, turn the adapter until it fits on
the locking wheel bolt.
2. Screw in the locking wheel bolt. The tight-
ening torque is 140 Nm, 101 lb ft.
3. After screwing in the wheel bolt, remove
the adapter again and stow it.