Re: Replace a Clutch Switch –
10-11-2013,11:21 PM
If you have the Rosstech cable, then this is easy to diagnose: Google for a guide, but essentially you fire up the software and in the "Engine" section, "Measuring Blocks", "Group 006" you will see a specific combination of four digit numbers that tell you the status of the clutch and brake switches.... if you push or release a pedal, then they should change... if they don't change, then the switch is broken....
The symptoms were that the cruide control would not engage (intermittently at first, but after a few weeks/month, it is permanently off) and is an intermittent combination of the amber warning and/or glow-plug lights: I think it was most commonly just the glow-plug light.... usually about 5mins into a journey, full ignitiion off and back on cleared it for a few minutes. It happened every 2nd / 3rd journey for a few weeks, then stopped for >2 months, then happened every journey until I started digging around and replaced the brake and clutch switches*...
*I forget which way around it happened, but the first sweep with the Rosstech showed what was described as the classic error for one of the switches (clutch, I think!) and then once I'd replaced that, it showed the classis error for the other one... another £10 and another 10 mins in the footwell later and it was sorted: cruise control working fine and the errors gone until I sold the car to a friend who never had a problem until he sold it on 6 months later (he just preferred the fuel economy of his 2.0TDI fwd)....
Audi A6 (C7) Avant: 3.0TFSI, DSG, rain and light sensor pack, MMI touch, SDS high, LED headlight pack, 360deg sensors + auto-park, Dunlop SP Winter Sports / Pirelli P Zero's.
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