Removing and installing front airbag crash sensor, driver side G190 — VW

Removing and installing
front airbag crash sensor, driver side
G190
Removing
WARNING
Observe safety instructions for pyrotechnic components
Chapter
.
Risk of injury due to automatic engine starting in vehicles with a Start/Stop system.
In vehicles with an activated Start/Stop system (indicated by a message in the dash panel insert), the engine may start automatically.
When working on the vehicle, make sure that the Start/Stop system is deactivated (switch off the ignition; switch the ignition on again if necessary).
For
“e-Golfs”
or
“Golf GTEs”
, disconnect the
maintenance connector for high-voltage system
TW
.
Disconnect battery earth cable with ignition switched on
Electrical system
Rep. gr.
27
Battery; Connecting and disconnecting battery
.
Open bonnet.
Unscrew bolts
1 and 3
.
Release catch
arrow
and remove cover
2
.
Lay coolant hose
2
to one side.
Release catches
arrows
and remove upper part of air duct
1
.
Unscrew bolt
arrow
on left and right.
Unclip lower part of air duct
1
and remove it.
Unscrew bolts
2
and remove crash sensor
3
for front airbag from lock carrier.
WARNING
Before handling pyrotechnic components (e.g. separating the electrical connector), the person handling them must ensure that he/she is
“electrically discharged”
. To do this e.g. briefly touch the door striker plate.
Disconnect connector
1
.
Pull out connector lock
2
, press it down
arrow
and disconnect connector
1
on crash sensor.
Installing
WARNING
Observe safety instructions for pyrotechnic components
Chapter
.
Before handling pyrotechnic components (e.g. connecting the electrical connector), the person handling them must ensure that he/she is
“electrically discharged”
. To do this e.g. briefly touch the door striker plate.
Push connector
1
onto crash sensor until it engages audibly
arrow
.
Press in connector lock
2
to lock the connector.
Further installation is carried out in reverse order of removal. Observe the following:
Note
Ensure that the electrical connectors are pushed fully onto stop and engage audibly.
Ensure that no wires are trapped.
WARNING
Battery must be connected with ignition switched on. If pyrotechnic components (e.g. airbag, seat belt tensioners) are repaired incorrectly, undesired triggering may occur after the battery is connected. Ensure that nobody is in vehicle when connecting battery.
For
“e-Golfs”
or
“Golf GTEs”
, connect the
maintenance connector for high-voltage system
TW
.
Connect battery earth cable with ignition switched on
Electrical system
Rep. gr.
27
Battery; Connecting and disconnecting battery
.
WARNING
If the ignition has not yet been switched on after the battery has been reconnected
“warning lamps in dash panel insert are off”
, the ignition (key or button) must only be switched on while sitting on the driver seat and with the seat set to rearmost position.
Note
If
airbag warning lamp
K75
indicates a fault following installation, event memory must be read, deleted and read again
Vehicle diagnostic tester
.
Specified torques
Chapter
“
Overview of fitting locations - airbag crash sensors
”