BMW Z4, Owner'S Manual

Page: 265 / 330

Reset the Tire Pressure Monitor TPM, refer to
page
265 .
Replace the nonworking tire and the sealant con‐
tainer of the Mobility System promptly.
Snow chains
Safety information
Warning
With the mounting of snow chains on unsuita‐
ble tires, the snow chains can come into con‐
tact with vehicle parts. There may be a risk of
accident or risk of damage to property. Only
mount snow chains on tires that are designated
by their manufacturer as suitable for the use of
snow chains.
Warning
Insufficiently tight snow chains may damage
tires and vehicle components. There may be a
risk of accident or risk of damage to property.
Make sure that the snow chains are always suf‐
ficiently tight. Re-tighten as needed according
to the snow chain manufacturer's instructions.
Fine-link snow chains
The manufacturer of the vehicle recommends
the use of fine-link snow chains. Certain types of
fine-link snow chains have been tested by the
manufacturer of the vehicle and recommended
as road-safe and suitable.
Information regarding suitable snow chains is
available from a dealer’s service center or an‐
other qualified service center or repair shop.
Use
Use only in pairs on the rear wheels, equipped
with the tires of the following size:
▷ 225/50 R17.
▷ 255/40 R18.
Follow the snow chain manufacturer's instruc‐
tions.
Do not initialize the Flat Tire Monitor after
mounting snow chains, as doing so may result in
incorrect readings.
Do not reset the Tire Pressure Monitor TPM af‐
ter mounting snow chains, as doing so may re‐
sult in incorrect readings.
When driving with snow chains, briefly activate
Dynamic Traction Control DTC to optimize the
forward momentum.
Maximum speed with snow
chains
Do not exceed a speed of 30 mph/50 km/h when
using snow chains.
Tire Pressure Monitor TPM
Concept
The system monitors tire inflation pressure in the
four mounted tires. The system warns you if
there is a loss of pressure in one or more tires.
General information
Sensors in the tire valves measure the tire infla‐
tion pressure and tire temperature.
The system detects the mounted tires automati‐
cally. The system displays the specified nominal
pressure values on the Control Display and com‐
pares these values to the actual tire pressure val‐
ues.
If tires are being used that are not specified on
the tire inflation pressure details on the vehicle,
refer to page
252 , such as tires with special ap‐
proval, the system needs to be actively reset.
The system will then take over the actual tire in‐
flation pressures as the target pressures.
When operating the system, also note the addi‐
tional information found in the Tire inflation pres‐
sure, refer to page
252 , chapter.
Seite 265
Wheels and tires
MOBILITY
265
Online Edition for Part no. 01402779113 - II/19