Did you ever get around to testing an A6 EPB module before diagnosing the wiring fault? A lot of A6 parts (4F0 part numbers) seem to be interchangable with A8 ones. I think this would be more likely to work than a module from the D4 A8.
I've also had a couple of intermittent parking brake faults in recent weeks. It's still working correctly now so I'm hoping it was just due to the cold weather as previously mentioned.
If I ever need to replace the module (or motors) in future then I'll try an A6 one. The 2-pin motors are also much cheaper.
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- 2005 Audi A8 D3 4.2L Petrol
- 2008 Ford Mondeo 2.5T
- 2000 Ford Focus 1.6
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