Rain sensor in KL mk4 Leon?

Feb 21, 2025
15
0
Hello. My seat leon kl 2021 FR Plus has no rain sensor only auto lights.

I've seen many rain sensors for sale. Is it possible to install one by removing the existed sensor and replace it with new one behind the mirror by removing the mirror? I have done it in my old seat leon 5f and it was working fine without any codings etc. Is it possible to do it in mk4 KL Leon?

Thank you.
 

cairus

Active Member
Jun 4, 2024
1,017
348
Which steering column switch did you install? I didn't even know that it was available as an option
 
Hello. My seat leon kl 2021 FR Plus has no rain sensor only auto lights.

I've seen many rain sensors for sale. Is it possible to install one by removing the existed sensor and replace it with new one behind the mirror by removing the mirror? I have done it in my old seat leon 5f and it was working fine without any codings etc. Is it possible to do it in mk4 KL Leon?

Thank you.

Have you checked that you currently have a sensor installed in the windscreen? There's a discrete light sensor installed in the light switch

To be fair you should have a sensor there for the humidity, I don't see a sensor listed for the Leon KL that doesn't have rain/light & humidity functionality. It's possible the additional functionality just requires enabling.
 
Last edited:
Feb 21, 2025
15
0
Have you checked that you currently have a sensor installed? There's a discrete light sensor installed in the light switch

To be fair you should have a sensor there for the humidity, I don't see a sensor listed for the Leon KL that doesn't have rain/light & humidity functionality. It's possible the additional functionality just requires enabling.
Hello. Thank you for your response. My leon has only auto light not rain sensor Im 100% sure. Many friends of mine with same seat leon mk4 kl 2021 have no rain sensor too. Light switch says auto. Only this. Any help please?
 
You already have the sensor installed in the windscreen
 

Attachments

  • Screenshot 2025-02-23 174357.png
    Screenshot 2025-02-23 174357.png
    46.9 KB · Views: 30
Feb 21, 2025
15
0
I have tried to put the switch up like the wv Golf 7.5 I used to have with rain sensor and its not working. If I put the switch up sweepers are working every 25 secs. Any idea how to activate it?

See the picture below:
 

Attachments

  • IMG_20250223_195614.jpg
    IMG_20250223_195614.jpg
    90.3 KB · Views: 23
Regensensorik_Verbauund_ABT_Steuerung
HMI_Wiper_Comfort_Rain_Sensor_OFF notactive -> active
Regensensor not installed -> installed

Assistance light functions

Assistenzfahrlicht bei Regen not active -> active
Maskierung_Regenlichtmenü active -> not active

RLFS_RLS Codierung (KII05)

Regensensorbetrieb Aus -> Ein

Light function "Coming/Leaving Home"

Menuesteuerung Leaving-home Freischaltung per BAP not active -> active
Menuesteuerung Coming Home Werkseinstellung not active -> active
Coming Home Verbaustatus not installed -> Automatic
Leaving-Home Verbausstatus not enabled -> enabled
Darstellung Coming-home Verlauf not active -> active
Darstellung Leaving-home Verlauf not active -> active

Dataset is the same for both 8N4 and 8N6
 
  • Like
Reactions: KoNG

cairus

Active Member
Jun 4, 2024
1,017
348
I have tried to put the switch up like the wv Golf 7.5 I used to have with rain sensor and its not working. If I put the switch up sweepers are working every 25 secs. Any idea how to activate it?

See the picture below:


Somehow the picture is too bad, or I have trouble seeing, but I'm missing some circles on the sensor...
 

cairus

Active Member
Jun 4, 2024
1,017
348
I have tried to put the switch up like the wv Golf 7.5 I used to have with rain sensor and its not working. If I put the switch up sweepers are working every 25 secs. Any idea how to activate it?

See the picture below:
Please give me the VIN
 
Feb 21, 2025
15
0
Good morning.

Please see this pic. I need to change only this? It will work then?
 

Attachments

  • Screenshot_2025-02-23-21-52-04-15_e12f25f1a1eef3fba9ad2471f7cb9c73.jpg
    Screenshot_2025-02-23-21-52-04-15_e12f25f1a1eef3fba9ad2471f7cb9c73.jpg
    95.7 KB · Views: 22
Feb 21, 2025
15
0
And see these too
 

Attachments

  • Screenshot_2025-02-23-21-52-23-42_e12f25f1a1eef3fba9ad2471f7cb9c73.jpg
    Screenshot_2025-02-23-21-52-23-42_e12f25f1a1eef3fba9ad2471f7cb9c73.jpg
    94.1 KB · Views: 15
  • Screenshot_2025-02-23-21-52-40-57_e12f25f1a1eef3fba9ad2471f7cb9c73.jpg
    Screenshot_2025-02-23-21-52-40-57_e12f25f1a1eef3fba9ad2471f7cb9c73.jpg
    104.5 KB · Views: 15
  • Screenshot_2025-02-23-21-52-52-85_e12f25f1a1eef3fba9ad2471f7cb9c73.jpg
    Screenshot_2025-02-23-21-52-52-85_e12f25f1a1eef3fba9ad2471f7cb9c73.jpg
    145.2 KB · Views: 15
Progressive Parts, performance parts and tuning specialists