Rain Light Sensor

inexeng · 12-03-2008, 07:04

I have a MY06 Octavia II elegance with rain sensing wipers

I have seen this Ross Tech Wiki

VW Golf (1K) Rain/Light Sensor - Ross-Tech Wiki

If I wanted to make the sensor LESS sensitive to rain, do I just make the byte 00 smaller ?

eg. Byte 00 = 4D (hex) = 77 (dec) = Rain Sensor Correction value is 77%

Thanks

Theresias · 12-03-2008, 19:34

Even if you alter the coding it has no real effect, except maybe making it worse. Been there, done that.

Post the related part of an Auto-Scan, maybe I have other advice for you...

inexeng · 12-03-2008, 20:19

here you go:-
Address 09: Cent. Elect. Labels: 3C0-937-049.LBL
Part No SW: 3C0 937 049 E HW: 3C0 937 049 E
Component: Bordnetz-SG H37 1002
Coding: 418A0F030004140000110D000000000000087F075C
Shop #: WSC 73430

Part No: 1Z2 955 119 A
Component: Wischer SK351 012 0401
Coding: 00065525
Shop #: WSC 73430

Part No: 1K0 955 559 T
Component: RegenLichtSens 011 1110
Coding: 00208933
Shop #: WSC 73430

My wipers on auto just too sensitive even with the adjustment switch to the left

from the wiki I get :-
Component: RegenLichtSens = Rain Light Sensor
Coding: 00208933 ON 22/02/08 in Hex = 033025 = 03-30-25 hex
= 03-48-37 dec

37% seems low
Thanks
Andy

inexeng · 15-03-2008, 09:55

What do you think ?

Best I leave this well alone ?

Sebastian ?

Theresias · 15-03-2008, 15:58

The 1K0-955-559-T has been reported to be inconsistent or a little late by some drivers while others have no problems with it. Personally I have a 1K0-955-559-AB which I am very happy with and which would be the current replacement part for your sensor.

Regarding the coding, feel free to play with it but based on experience I doubt you will see a positive change. Keep in mind that those values are not directly related to the wiping process but instead they correspond with the installed windshield and it's ability to transmit/reflect certain frequencies of light.

inexeng · 15-03-2008, 19:45

Thanks

I will go nag my dealer

Cheers for the reply

Andy

12-03-2008, 07:04	#1
inexeng Engineer Join Date: Jan 2006 Location: Manchester Posts: 177	Rain Light Sensor I have a MY06 Octavia II elegance with rain sensing wipers I have seen this Ross Tech Wiki VW Golf (1K) Rain/Light Sensor - Ross-Tech Wiki If I wanted to make the sensor LESS sensitive to rain, do I just make the byte 00 smaller ? eg. Byte 00 = 4D (hex) = 77 (dec) = Rain Sensor Correction value is 77% Thanks __________________ On order 25July08 vRS CR TDi hatch in Corrida Red at the docks now Xenons, Rear Parking Sensors, Maxi Dot, Jumbo Box Pack, 18" Alloys, Cruise Control Silver 52 OctyI 1.6i Ambience for a bit Gone - Black 06 Octy II 2.0 TDI Elegance Gone - Green 02 Octy I 1.9 TDI Estate

12-03-2008, 19:34	#2
Theresias Briskodian Join Date: Apr 2006 Location: Mid Germany Posts: 377	Re: Rain Light Sensor Even if you alter the coding it has no real effect, except maybe making it worse. Been there, done that. Post the related part of an Auto-Scan, maybe I have other advice for you... __________________ Sebastian

12-03-2008, 20:19	#3
inexeng Engineer Join Date: Jan 2006 Location: Manchester Posts: 177	Re: Rain Light Sensor here you go:- Address 09: Cent. Elect. Labels: 3C0-937-049.LBL Part No SW: 3C0 937 049 E HW: 3C0 937 049 E Component: Bordnetz-SG H37 1002 Coding: 418A0F030004140000110D000000000000087F075C Shop #: WSC 73430 Part No: 1Z2 955 119 A Component: Wischer SK351 012 0401 Coding: 00065525 Shop #: WSC 73430 Part No: 1K0 955 559 T Component: RegenLichtSens 011 1110 Coding: 00208933 Shop #: WSC 73430 My wipers on auto just too sensitive even with the adjustment switch to the left from the wiki I get :- Component: RegenLichtSens = Rain Light Sensor Coding: 00208933 ON 22/02/08 in Hex = 033025 = 03-30-25 hex = 03-48-37 dec 37% seems low Thanks Andy __________________ On order 25July08 vRS CR TDi hatch in Corrida Red at the docks now Xenons, Rear Parking Sensors, Maxi Dot, Jumbo Box Pack, 18" Alloys, Cruise Control Silver 52 OctyI 1.6i Ambience for a bit Gone - Black 06 Octy II 2.0 TDI Elegance Gone - Green 02 Octy I 1.9 TDI Estate

15-03-2008, 09:55	#4
inexeng Engineer Join Date: Jan 2006 Location: Manchester Posts: 177	Re: Rain Light Sensor What do you think ? Best I leave this well alone ? Sebastian ? __________________ On order 25July08 vRS CR TDi hatch in Corrida Red at the docks now Xenons, Rear Parking Sensors, Maxi Dot, Jumbo Box Pack, 18" Alloys, Cruise Control Silver 52 OctyI 1.6i Ambience for a bit Gone - Black 06 Octy II 2.0 TDI Elegance Gone - Green 02 Octy I 1.9 TDI Estate

15-03-2008, 15:58	#5
Theresias Briskodian Join Date: Apr 2006 Location: Mid Germany Posts: 377	Re: Rain Light Sensor The 1K0-955-559-T has been reported to be inconsistent or a little late by some drivers while others have no problems with it. Personally I have a 1K0-955-559-AB which I am very happy with and which would be the current replacement part for your sensor. Regarding the coding, feel free to play with it but based on experience I doubt you will see a positive change. Keep in mind that those values are not directly related to the wiping process but instead they correspond with the installed windshield and it's ability to transmit/reflect certain frequencies of light. __________________ Sebastian

15-03-2008, 19:45	#6
inexeng Engineer Join Date: Jan 2006 Location: Manchester Posts: 177	Re: Rain Light Sensor Thanks I will go nag my dealer Cheers for the reply Andy __________________ On order 25July08 vRS CR TDi hatch in Corrida Red at the docks now Xenons, Rear Parking Sensors, Maxi Dot, Jumbo Box Pack, 18" Alloys, Cruise Control Silver 52 OctyI 1.6i Ambience for a bit Gone - Black 06 Octy II 2.0 TDI Elegance Gone - Green 02 Octy I 1.9 TDI Estate

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