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:
Running-in
First read and observe the introductory information
and safety warnings Please follow the regulations concerning running-in new
parts.
Running in a new engine
Any new engine has to be run in during the first 1,500 kilometres. During its
first few hours of running, the internal friction in ...
Air conditioner compressor regulating valve -N280
The regulating valve is fitted to the air conditioner
compressor. It is activated by the operating and display unit
for Climatronic air conditioning system -E87- or the Climatronic
control unit -J255- The regulating valve influences the pressure
in the l ...
Checking function and voltage supply of the fuel pump, engine code CWVA
Special tools and workshop equipment
required
Removal wedge -3409-
Multimeter e.g. hand-held multimeter -V.A.G 1526E-
...
© 2016-2026 Copyright www.vwgolf.org
Removing and installing rain and light sensor, vehicles without front camera
for driver assist systems
Repairing rain and light sensor, Valeo