Hello. I have an issue with my electric windows on my Fabia Elegance 1.2 2007. None of the windows is working (four) and I have narrowed it down to the driver side window motor control unit. The problem is that a new one is 2900:- skr (250;-GBP) and therefore Im looking for a used part. I cannot find one it seems.  My Skoda dealer/mechanic said that the part number for my car is 6Y2959802A SK3 or SK6.

My questions are;

Does it have to be exactly that part number?

Is there any other part number that will work as well? 

Anyone have the same problem with the windows not working

and if so, How did you resolve the issue?

It's a very confusing situation. 

Mk1 Fabias had two broad groups of part numbers, those starting 6Q.. which communicated with the convenience CAN bus, and later ones starting 6Y that only communicated with each other via LIN bus.

Different connectors too.

 

Mk2s have 3 different types at different times in production. 6Y.. ones like yours up until 04/11/07 then two different suffixes on numbers that start 6Q2.. from then until 30/08/2009, and from 31/08/2009 onwards. See relevant section under the second grey banner here: central control unit for convenience system - Fabia(FAB) [EUROPA 2007 year] (7zap.com)

The 6Y ones have an 8 way and a 6 way loom connection, the later ones a single 16-way connector, so probably not easily compatible, if at all.

 

The SK3 business is also interesting,  according to the description within this ebay advert for a genuine new one (not suitable for you as it's RHD) the software number - which I assume is what they mean by the SK3, isn't shown anywhere in writing on the actual motor.

Check before ordering Skoda Fabia front left window motor 6Y1959802SK3 Genuine | eBay

 

'These motors are supplied with software written to the control units that are vehicle / model specific. This software code IS NOT SHOWN ON THE MOTOR THAT YOU MAY HAVE REMOVED FROM THE CAR. So, even if the number on the body of the motor in your car is the same as the one you can see in our picture, the software code in the black box on the side of the motor is possibly not correct.
As such, we will not despatch this motor until we've had a UK registration number or 17 digit VIN number so we can check if the software is compatible with your car because if you attempt to code the motor control unit to a car that it's not designed for, then this will ruin the motor and may possibly damage other electrical systems in the car, and we will not accept it back for credit.'

 

I don't think I quite believe the stuff about ruining the motor or damaging other systems in the car, but I can easily believe that a non-compatible software version might not work properly or at all when connected to other motor modules in the car that don't share the same version.

 

It does make me wonder how you can find out the software version of a secondhand motor. There is what looks like a QR code sticker on a microcontroller chip inside them, but when I've tried to decode it to see what it says it hasn't worked, and closer inspection suggests it's not a standard QR code quite. Knowing exactly what car and what date that car was from may be sufficient I suppose.

 

 

Edited 23 April, 20215 yr by Wino

Here's an example of the 'not quite QR code' that I'd be delighted if anyone knows how to read:

 

Since I drive a left steered car I have to get a motor from a left steered car I reckon. So If I'm reading this correctly (English is not my first language =)) I have to get a part that has a part number beginning with "6Y" or else the connectors don't fit? For the Mk1 the part number begins with "6Y1" and ends with SK1 and that wouldn't work either?

I need a part that has the "6Y2..... part number I presume.. And that part has to have the SK3 or SK6 ending that tells med what software the part is using. The only way to see what "SK" number the part has is to run the chassi/VIN number in Volkswagens own part system which  costs a fortune to get I was told by a friends friend who works at a  car diassambly/ scrapyard.

 

12 minutes ago, Majkel said:

I have to get a part that has a part number beginning with "6Y" or else the connectors don't fit? For the Mk1 the part number begins with "6Y1" and ends with SK1 and that wouldn't work either?

I need a part that has the "6Y2..... part number I presume..

Yes to all of that I think.

Unfortunately for you, the exact part number you have is only going to be found in LHD mk2 Fabias with front and rear electric windows built from the start of mk2 production until 04/11/07, which isn't a big window of time. 

And buying secondhand, you can't be certain that what you buy does work or will continue to work for long. 

 

Have you ruled out with high confidence that the problem isn't wiring between the connector at the A-pillar and the driver's motor module? Mk2s are famous for broken wiring in that rubber cover between body of car and door. It's a poor design. 

Edited 23 April, 20215 yr by Wino

1 minute ago, Wino said:

Yes to all of that I think.

Unfortunately for you, the exact part number you have is only going to be found in LHD mk2 Fabias built from the start of mk2 production until 04/11/07, which isn't a big window of time. 

And buying secondhand, you can't be certain that what you buy does work or will continue to work for long. 

 

Have you ruled out with high confidence that the problem isn't wiring between the connector at the A-pillar and the driver's motor module? Mk2s are famous for broken wiring in that rubber cover between body of car and door. It's a poor design. 

04/1107? I thought I at least had until the new production started in 2010 =( 
I had my brother look at the car who is an electrician and he was also talking about that wiring underneath the rubber cover but he didn't find anything wrong there. Think ILL go over everything once again. Take everything of, inspect reassemble it again before I pay 250 quid for a new one =(

3 minutes ago, Majkel said:

04/1107? I thought I at least had until the new production started in 2010 =( 

No, as in the link I posted earlier the first change of number was after that 04/11/07 date:

 

Have you checked fuse number 11?

ah now I understand the difference. Well that wasn't a happy surprise. 

 

Yes and that one is good. I replaced it anyways Justin case but it did nothing. 

 

Everthing seems to be working as It should except the "DOOR CONTROL UNIT DRIVER SIDE"

 

Central looking, rear window heaters and adjustable rear windows...all good. 

I think that wiring info may be for the later versions, as it's showing 16-pin connections I think?

Im getting more and more confused =)

That wiring info is the one I found for my car (Haynes-) I look again. Also found out just now that this part is used on vw Polos as well. Don't know exactly which year polos but now I have to look into that as well.  

Polos will have different software version (starting VW rather than SK) I believe.

Whether it really matters, who knows?

Hello again. I bought a new motor from Skoda-parts that fitted my car. My local Skoda dealer/mechanic wanted me to pay 300 euros for the motor. Skoda-parts 170 euros. Yesterday I fitted the new motor and the windows are now working properly.