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Lots of error - random
http://www.myvwegolf.com/forum/viewtopic.php?f=12&t=1926
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Author:  bignelly1979 [ Thu May 23, 2019 10:20 am ]
Post subject:  Lots of error - random

OK, I am not sure what issue is.

About a week ago I was driving along and next thing I got loads of errors. More or less everything electrical turned off. So regen was gone and every. ABS, ACC and front assist, tyre pressure, headlight range control. All turned off mid drive.

Car still drove and I got home. Turned off car and back on. Nothing.

Then I started to get the pressure error. Said the system had failed. All the time. Then this stopped.

now every so often, random occasions I will have the same mass error against everything and the car will still drive. Turn it off and on and it will be ok again??????

Any ideas

Its a 15 model

Author:  miimura [ Thu May 23, 2019 10:23 am ]
Post subject:  Re: Lots of error - random

Check the voltage at the 12V battery with the car OFF and ON and READY. These kinds of issues are usually due to problems with the 12V battery or the DC-DC converter that charges the 12V battery when the car is on.

Author:  bignelly1979 [ Fri May 24, 2019 3:15 am ]
Post subject:  Re: Lots of error - random

Thanks, will need to bring to garage to test

I was thinking it was 12v battery issues

Author:  bignelly1979 [ Tue Jun 11, 2019 4:57 am ]
Post subject:  Re: Lots of error - random

Ok, tested the 12v battery and no issues with it....

You mention the DC-DC convertor, I guess I have to go to VW to sort this?

Author:  JoulesThief [ Tue Jun 11, 2019 6:20 am ]
Post subject:  Re: Lots of error - random

Since it's an intermittent problem, use your smart phone to take videos of it in failure mode, to show to the service writer, as to what the problems are, in case they can't duplicate the problem.

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