Question about 1999 Audi A6

3 Answers

Cruise control won't work

As several others on the forum describes i experince the same problem that the cruise control sometimes won't work. Other times it works for some minutes and then suddenly it disconnects?
I had the car to several workshops but always new explanations but still no fix.

What could it be?

Posted by on

  • momojanen Oct 08, 2008

    how to replace the combination switch? my cruise control quit and I commute 160 miles every day - I rely on it -

  • agriegel Oct 23, 2008

    The tip from j_del got me out on the road with a working cruise!!!




3 Answers

This relates to manual transmission: There is a small comment in the manual that says cruise control will not engage if the computer believes this will result in under or over reving the engine. My intermittent behaviour seems to be due to this. As long as the revs are between 2k and 3k then cruise engages. Can then change gear to get the fuel efficiency. - A6 2008 2.7l Diesel. Hope this helps.

Posted on Nov 21, 2009

Make sure you speed warning is off if its on then then your cruse wont work
check the owners manuel it the thing you set to ring a bell when your car goes over the speed it happ to me once

Posted on Nov 03, 2008

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99% of the time it's the combination switch (the column switch assembly that houses the turn signal stalk and the headlight stalk). They're not designed extremely well and are a known failure area on the A4, which I believe shares the stalk with the A6. If it's the stalk, it's about an hour long job yourself to change it out, and the part is about $158 new. You do have to deal with the airbag though (the steering wheel has to come off), so if you're squeamish about this, it may be better to have it done by a shop.

Posted on Aug 08, 2008

  • Jeremy Dellow
    Jeremy Dellow Oct 23, 2008

    Great - glad it worked. There is a cruise control module inside the dash, above the glovebox, on some Audis, but there's no way to know if yours has that or has it incorporated into the car's computer. Still, the stalk is the usual reason that the cruise fails. Glad you are back on the road with it working again:)


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