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Correcting the tire inflation pressure
1. Stop at a suitable location.
2. Screw the connection hose of the com‐
pressor directly onto the tire valve stem.
3. Insert the connector into the power socket
inside the vehicle.
4. Correct the tire inflation pressure to
2.5 bar.
▷ Increase tire inflation pressure: with the
ignition switched on or the engine run‐
ning, switch on the compressor.
▷ Reduce tire inflation pressure: press
the button on the compressor.
Continuing the trip
Do not exceed the maximum permissible
speed of 50 mph/80 km/h.
Reinitialize the run-flat tires.
Reset the Tire Pressure Monitor TPM.
Replace the nonworking tire and the sealant
container of the Mobility System at the next
opportunity.
Snow chains
Safety information
WARNING
With the mounting of snow chains on un‐
suitable tires, the snow chains can come into
contact with vehicle parts. There is a risk of ac‐
cidents or risk of damage to property. Only
mount snow chains on tires that are desig‐
nated by their manufacturer as suitable for the
use of snow chains.◀
WARNING
Insufficiently tight snow chains may
damage tires and vehicle components. There
is a risk of accidents or risk of damage to prop‐
erty. Make sure that the snow chains are al‐
ways sufficiently tight. Re-tighten as needed
according to the snow chain manufacturer's in‐
structions.◀
Fine-link snow chains
The manufacturer of your vehicle recommends
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:
▷ 255/55 R 18.
▷ 255/50 R 19.
Follow the snow chain manufacturer's instruc‐
tions.
Do not initialize the run-flat tires after mount‐
ing snow chains, as doing so may result in in‐
correct readings.
Do not reset the Tire Pressure Monitor TPM
after mounting snow chains, as doing so may
result in incorrect readings.
When driving with snow chains, briefly activate
Dynamic Traction Control DTC, if needed.
Maximum speed with snow chains
Do not exceed a speed of 30 mph/50 km/h
when using snow chains.
Changing wheels/tires
General information
When using run-flat tires or a flat tire kit, a
wheel does not always need to be changed im‐
mediately when there is a loss of tire inflation
pressure due to a flat tire.
If needed, the tools for changing wheels are
available as accessories from a dealer’s service
Seite 247
Wheels and tires Mobility
247
Online Edition for Part no. 01402983801 - X/17
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