Dashboard not working, working intermittently

choyle

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Jan 6, 2021
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4
I am hoping someone can help me, I have a 51 reg Passat which I absolutely love and would hate to get rid of. The dashboard is only working intermittently, last worked properly Christmas Eve. I did have a leak on the rear driver side door which I have had fixed but by the time I found it , it had been leaking for some time. I have used a dehumidifier to dry the car out and all was well, now I have this issue which I suspect is related. Can anyone give me any suggestions to check? I am in no way motor minded so please take it easy with me!
 

choyle

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Joined
Jan 6, 2021
Messages
4
It hasn’t worked properly now since Xmas eve. Then, it had been either working fully or not at all for a few weeks. Since then, either fully dead with exception of digital display or sometimes Rev and speed will Register but then they seem to get stuck. Mileage count stuck.
 

DaveAB

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Jan 4, 2021
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Location
Shaftesbury UK
Hi , since you mention the water leak, it may be issue with the comfort control module. I would pull out the CCM which is under the drivers seat carpet. Water can follow the wires and put water into it. Cheers Dave
 

choyle

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Jan 6, 2021
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4
Is the panel completely dead?
Hi

Took it for a drive today to get some clearer info. All lights are on on panel when headlights on. Digital display working that shows mph count etc. Individual items working such as seatbelt light, door and boot open. It is literally the four dials that are not working.
 

Crasher

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Apr 22, 2006
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It needs to go on a diagnostic system where in output tests the gauges can be tested individually for full sweep, back to zero then circa 50% reading.
 

choyle

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Jan 6, 2021
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It needs to go on a diagnostic system where in output tests the gauges can be tested individually for full sweep, back to zero then circa 50% reading.
Hi, thanks for advice. I am presuming this is at a VW registered garage? General question, is diagnostic test expensive? And in your obviously well informed opinion, the resulting fix likely to be so? I am at that very sad point where I need to weigh up cost of repair v age. It has been a great car, and with me for over 17 years, but it is at a point where I need to use head not heart.
 

Crasher

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Any VAG specialist will be able to do this BUT not all independents will be able to install a new panel in the correct manner if that is what is required and sounds likely. A specialist and many general garages will have a system called VCDS and for example we charge a fairly typical £48 for a full scan, print, clear, read read and chat. The real problem will be IF the panel is faulty as new the one I think you will have is totally obsolete and the higher spec version you may have is only available from VW Classic in Germany and with postage is going to be over £400. Then a new (or used) panel has to be matched to the key chip and with used panels this can be tricky even with the proper system called ODIS which not all VAG independents have at the GEKO security level. If it is faulty I would be tempted to talk to BBA Reman about having it repaired but with the panel out the car is dead.
 
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