Operational readiness of airbag system
Individual components can be hot after
triggering of the airbag system. There is risk of
injuries. Do not touch individual components.◀
Improperly executed work can lead to
failure, malfunction or unintentional triggering
of the airbag system. In the case of a malfunc‐
tion, the airbag system could not trigger as in‐
tended in the event of an accident despite re‐
spective accident severity. There is risk of
injuries or danger to life. Have the airbag sys‐
tem checked, repaired, dismantled and scrap‐
ped by a dealer’s service center or another
qualified service center or repair shop.◀
In the radio ready state and beyond, re‐
fer to page 50, the warning light lights
up briefly to indicate that the entire air‐
bag system and the belt tensioners are opera‐
Airbag system malfunction
▷ Warning light does not light up in the radio
▷ Warning light remains permanently on.
The airbag restraint system and belt tensioner
are not working. Have the vehicle checked im‐
mediately by a dealer’s service center or an‐
other qualified service center or repair shop.
FTM Flat Tire Monitor
The system does not measure the actual infla‐
tion pressure in the tires.
The system detects a pressure loss in a tire by
comparing the rotational speeds of the individ‐
ual wheels while moving.
In the event of a pressure loss, the diameter
and therefore the rotational speed of the corre‐
sponding wheel change. This is detected and
reported as a flat tire.
The system must have been initialized when
the tire inflation pressure was correct; other‐
wise, reliable signaling of a flat tire is not en‐
Initialize the system after each correction of the
tire inflation pressure and after every tire or
A natural, even pressure loss in all four tires
cannot be detected. Therefore, check the tire
inflation pressure regularly.
Sudden serious tire damage caused by external
influences cannot be indicated in advance.
The system could be delayed or malfunction in
the following situations:
▷ When the system has not been initialized.
▷ When driving on a snowy or slippery road
▷ Sporty driving style: slip in the drive wheels,
high lateral acceleration.
▷ When driving with snow chains.
Online Edition for Part no. 01 40 2 964 433 - VI/15