BMW Z4 Roadster Owner's Handbook Manual page 289

studs belonging to the wheels may also have
to be used.
4. Tighten the remaining wheel studs until fin‐
ger-tight and then tighten all the wheel studs
crosswise.
5. Turn the jack crank anticlockwise to retract
the jack and lower the vehicle.
6. Remove the jack and stow it securely.
After changing the wheel
1. Tighten the wheel studs crosswise. The
tightening torque is 140 Nm, approximately
101 lb ft.
2. Stow the faulty wheel in the boot, if neces‐
sary.
Due to its size, the faulty wheel cannot be ac‐
commodated under the boot floor.
3. Check tyre inflation pressure at the next op‐
portunity and correct as necessary.
4. Reset the Tyre Pressure Monitor TPM.
5. Check the tight fit of the wheel studs using a
calibrated torque wrench.
6. Drive to the nearest Service Partner of the
manufacturer or another qualified Service
Partner or a specialist workshop to have the
damaged tyre replaced.
Not for Australia/New
Zealand: Emergency wheel
Principle
In case of a flat tyre, the emergency wheel can
be used as a replacement for the defective tyre.
The emergency wheel is intended for short-term
use until the defective wheel has been replaced.
General
Only fit one emergency wheel at most.
Additionally, regularly check the tyre inflation
pressure of the emergency wheel in the boot
and correct the pressure if necessary.
Wheels and tyres
Online Edition for Part no. xxx - X/18
Safety note
WARNING
The emergency wheel has special dimensions.
When driving with an emergency wheel, the
driving properties may change, for example re‐
duced directional stability when braking, longer
braking distance and modified self-steering be‐
haviour in the limit range. There is a danger of
accidents. Drive with care and do not exceed a
speed of 80 km/h, 50 mph.
Overview
The emergency wheel and the tools for changing
wheels are located in a bag in the boot.
Removing emergency wheel
1. Release the lashing strap at the buckle, ar‐
row 1.
2. Unhook the lashing straps from the lashing
eyes.
MOBILITY
289