Seat Leon >> Removing and installing rain and light sensor

Removing and installing rain and light sensor - G397- , vehicles with front camera for driver assist systems

Note

  • The rain and light sensor has a silicon layer (coupling pad) which forms the contact surface to the windscreen.
  • The rain and light sensor has been designed so that it can be used again. A prerequisite for re-use is that the coupling pad is not damaged or dirty (check!).

Removing

  • Switch off ignition and all electrical consumers.

Vehicles without access and start authorisation system

  • Remove ignition key, if fitted.

Vehicles with access and start authorisation system

  • Store the ignition key outside the vehicle to prevent the ignition from being switched on unintentionally.

Continued for all vehicles

  • Cover -1- of the front camera support is pushed downward -Arrow A- unclip and remove -Arrow A-

Windscreen wash/wipe system

Note Wait at least 1 minute after releasing the retaining clip. This is necessary to ensure that the silicone coating is relieved of tension and will not be damaged during removal.

  • Release retaining clip on left and right -arrows-.
  • Carefully lever out rain and light sensor - G397- -1- from retaining frame on windscreen, starting from the top.

Windscreen wash/wipe system

  • Release and pull off connector -1- and remove rain and light sensor - G397- -2-.

Windscreen wash/wipe system

Caution

Until the time comes to reinstall it, store removed rain and light sensor - G397- in a place where the coupling pad cannot be damaged or soiled from dust, etc.

Installing

Installation is carried out in the reverse sequence; note the following:

Windscreen wash/wipe system

Caution
  • Prior to installation, thoroughly clean the surface of the windscreen inside the retaining frame for rain and light sensor - G397- . Any remains of coupling pad adhering to the windscreen must be completely removed.
  • The surface (coupling pad) of the rain and light sensor - G397- must not be soiled on installation. A sensor with damaged coupling pad must be renewed.

Note If the surface of the coupling pad on the rain and light sensor - G397- is soiled, it may be possible to clean it by "sticking on" and then "pulling off" one or more adhesive strips.

  • Clean windscreen within retaining plate thoroughly.
  • If necessary, remove protective cap -1- from new rain and light sensor - G397- .
  • Press grip in direction of arrow -A-.
  • Remove protective cap -1- in direction of arrow -B-.
  • Reconnect connector.
  • Insert rain and light sensor - G397- -1- into retaining frame on windscreen.
  • Push retaining clip on both sides -arrows- so that it can be heard to engage.

Windscreen wash/wipe system

Note

  • Even when sensor is installed correctly, small air bubbles may first appear between windscreen and coupling pad. After approx. 10 minutes, the contact surface must be free of bubbles.
  • If the contact surface is not free of bubbles after 10 minutes, the rain and light sensor - G397- must be removed and installed anew.
  • Air bubbles between the windscreen and coupling pad can lead to malfunctions in the rain and light sensor - G397- .

 

  • If rain and light sensor - G397- was replaced, perform coding.

Code the rain and light sensor - G397-

  • Connect vehicle diagnostic tester.
  • Coding rain and light sensor - G397-.

Removing and installing rain and light sensor - G397- , vehicles without front camera for driver assist systems

Note

  • The rain and light sensor has a silicon layer (coupling pad) which forms the contact surface to the windscreen.
  • The rain and light sensor has been designed so that it can be used again. A prerequisite for re-use is that the coupling pad is not damaged or dirty (check!).

Removing

  • Switch off ignition and all electrical consumers.

Vehicles without access and start authorisation system

  • Remove ignition key, if fitted.

Vehicles with access and start authorisation system

  • Store the ignition key outside the vehicle to prevent the ignition from being switched on unintentionally.

Continued for all vehicles

  • Remove centre console.

Note Wait at least 1 minute after releasing the retaining clip. This is necessary to ensure that the silicone coating is relieved of tension and will not be damaged during removal.

  • Release retaining clip on left and right -arrows-.
  • Carefully lever out rain and light sensor - G397- -1- from retaining frame on windscreen, starting from the top.

Windscreen wash/wipe system

  • Release and pull off connector -1- and remove rain and light sensor - G397- -2-.

Windscreen wash/wipe system

Caution

Until the time comes to reinstall it, store removed rain and light sensor - G397- in a place where the coupling pad cannot be damaged or soiled from dust, etc.

Installing

Installation is carried out in the reverse sequence; note the following:

Caution
  • Prior to installation, thoroughly clean the surface of the windscreen inside the retaining frame for rain and light sensor - G397- . Any remains of coupling pad adhering to the windscreen must be completely removed.
  • The surface (coupling pad) of the rain and light sensor - G397- must not be soiled on installation. A sensor with damaged coupling pad must be renewed.

Windscreen wash/wipe system

Note If the surface of the coupling pad on the rain and light sensor - G397- is soiled, it may be possible to clean it by "sticking on" and then "pulling off" one or more adhesive strips.

  • Clean windscreen within retaining plate thoroughly.
  • If necessary, remove protective cap -1- from new rain and light sensor - G397- .
  • Press grip in direction of arrow -A-.
  • Remove protective cap -1- in direction of arrow -B-.
  • Reconnect connector.
  • Insert rain and light sensor - G397- -1- into retaining frame on windscreen.
  • Push retaining clip on both sides -arrows- so that it can be heard to engage.

Windscreen wash/wipe system

Note

  • Even when sensor is installed correctly, small air bubbles may first appear between windscreen and coupling pad. After approx. 10 minutes, the contact surface must be free of bubbles.
  • If the contact surface is not free of bubbles after 10 minutes, the rain and light sensor - G397- must be removed and installed anew.
  • Air bubbles between the windscreen and coupling pad can lead to malfunctions in the rain and light sensor - G397- .

 

  • If rain and light sensor - G397- was replaced, perform coding.

Code the rain and light sensor - G397-

  • Connect vehicle diagnostic tester .
  • Coding rain and light sensor - G397- .

Repairing rain and light sensor - G397- , TRW

There are different housings depending on the make of rain sensor.

The rain sensor housing with lens unit is always supplied as a replacement in individual parts with retaining clips. On vehicles for which these retaining clips are not required, the clips must be removed.

Carry out the following work:

  • Remove rain sensor
Caution

The rain sensor electronics could become damaged.

  • When separating the housing parts, do not insert the screwdriver up to the rain 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.

Windscreen wash/wipe system

  • Separate upper part of housing -1- together with lens unit from bottom part of housing -2- by releasing retaining lugs -arrows- on both sides.

Windscreen wash/wipe system

Caution

The lens unit of the rain and light sensor may become damaged.

  • Do not touch the lens unit.
  • Remove rain and light 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 sensor.

Windscreen wash/wipe system

Repairing rain and light sensor - G397- , Valeo

  • Remove rain and light sensor - G397- .
  • Carefully remove sensor foil -2- or any sensor foil residues from rain and light sensor - G397- -1-.
Caution

The surfaces of the sensor must be completely free of remnants of foil.

  • Clean sensor surfaces with cleaning solution D 009 401 04.

Windscreen wash/wipe system

  • Pull silicone paper -3- off sensor foil -2-.

The transparent protective foil -1- remains initially on sensor foil as an assembly aid.

  • Place sensor foil on rain and light sensor -2- with aid of transparent protective film -1-.

Windscreen wash/wipe system

  • Press sensor foil through protective film -1- onto rain and light sensor -2- making sure there are no air bubbles.

  • Peel transparent protective film -1- off sensor foil -2-.
  • Install rain sensor.

Windscreen wash/wipe system

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