Volkswagen Golf Service & Repair Manual: Repairing rain and light sensor, TRW
| The housings for the rain and light sensors -G397- from
various manufacturers differ. |
| The sensor housing with lens unit is always supplied as a
replacement part in separate parts with retaining clips. In
vehicles which do not require these retaining clips, the clips
must be removed. |
| Perform the following procedure: |
| – |
Remove rain and light sensor -G397-
→ Chapter. |
Caution
| The sensor electronics may be damaged. |
| When separating the housing parts, do not insert the
screwdriver as far as the sensor electronics. |
| Do not touch the rain sensor electronics.
|
|
|
|
|
| – |
Release 4 locking lugs -arrows-
of retaining clip -1- using a
suitable screwdriver, and remove retaining clip. |
|
|
|
| – |
Separate upper part of housing -1-
together with lens unit from bottom part of housing
-2- by releasing retaining lugs
-arrows- on both sides. |
Caution
| The optical unit of the sensor may be damaged. |
| Do not touch the lens unit. |
|
|
|
|
| – |
Remove sensor electronics -2-
from upper part of old housing -1-
and insert into new upper part of new housing in exactly same
way. |
| – |
Engage upper part of housing with lens unit and protective
cover with lower part of housing. |
| – |
Install rain and light sensor -G397-
→ Chapter. |
|
|
|
Note
The rain and light sensor has a silicon layer (coupling pad)
which forms the contact surface to the windscreen.
The r ...
Remove rain and light sensor -G397-
→ Chapter.
–
Carefully remove sensor foil -2-
...
Other materials:
Removing engine
Special tools and workshop equipment required
Removal lever -80 - 200-
Extension -2024 A /1- of lifting tackle -2024 A-
Engine and gearbox jack -V.A.G 1383 A- or -VAS 6931-
Engine bracket -T10497-
Drip ...
Checking radial and lateral runout on wheels and tyres with tyre gauge
Checking lateral run-out
–
Preload tyre gauge approx. 2 mm.
–
Fit tyre gauge to side wall of tyre.
–
Turn wheel slowly.
...
Assembly overview - water drainage hoses
1 -
Rear water drain hose
Left and right
Cleaning
→ Chapter
Removing and installing
→ Chapter
2 -
Front water drain hose
Left and right
Cleaning
→ Chapter
Removing and installing
...
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Removing and installing rain and light sensor, vehicles without front camera
for driver assist systems
Repairing rain and light sensor, Valeo