Re: Any preventative thoughts on short-lived '87 5kcstq Multi-Function Switch?

[Michael Murphy <mmurphy@nais.com>]

Now I feel lucky, I got ~2years service before mine went south. According
to dealer part receipts, Audi warrants for 12 months/12K miles whichever
occurs first.
HTH,
MJ Murphy

MSV96@aol.com wrote:
> 
> Hey all, I guess the subject line pretty much tells the story. I got about 10
> month's life out of the last "multi-function" temperature sender/switch
> assembly. Part used was from Linda so it was not from some unkown source.

> There have been no coolant leaks around it so it has stayed clean and dry. Is
> this just one of those "Audi-God-Roulette" things? Any thoughts towards
> prolonging life? Any luck "repairing" them?
> 
> The gauge sender in this one is fine. What failed is the overheat sensor
> switch has latched on resulting in both no ac compressor on and lowered boost.
> I found this by following the Bentley troubleshooting guide for AC, very easy
> to follow btw, and found that Ch 16 displays the state of this switch.
> "Overheating"? when dead cold?! I think not--dead switch. New one on the way
> from TPC along with some of that sale priced ATE blue and Pentosin (to stock
> up for those over-due flushes, they are this week's specials).
> 
> Mike Veglia
> 87 5kcstq