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Re: 1990 80 quattro problems
At 12:26 PM 12/21/97 -0500, you wrote:
>Just bought a 1990 80 quattro! Yeah! I've had it about 5 days and love it,
>but I have a few questions (yes, I have ordered the Bentleys, it's just not
>1) Coolant Gauge - seems to work fine whenever started cold, makes it up
>past the close together hash marks and then just drifts back down. I've
>een following the broken thermostat thread, could that be it? Is so, where
>is it located?
Classic problem. It's the coolant temp sensor, located right, top side of
engine towards front where the upper radiator hose goes into the block.
Costs around $50 to replace. Clean connector plug while you're at it; your
old one probably leaked coolant into it.
>2) Alarm - doesn't work. Have no idea where to start looking
Most factory alarm problems are problems with the activation at the
driver's door, but I would need more info to help. Get Bentley.
>3) Lighted Switches - Do all switches have lights? If yes, do I need to get
>new switches or new bulbs?
Switches have lights. You can replace bulbs yourself, but the dealer only
sells the switches. Depends on how mechanically/electrically skilled you
are, or how cheap you want to be. One thing you'll notice w/new switches -
the lights will be brighter (because your old ones have gotten dim).
>4) Fog lights - Do they really only work when the headlights are on? That
>doesn't make sense to me?????
'88/'89 80/90Q fog lights worked independently. Audi changed it in 1990.
>5) Slight drop in idle - Of about 100-150 rpm and then pops right back up,
>is consistent whether warm or cold??
Probably needs new O2 sensor, or ISV needs to be cleaned out. I'd do both.
>6) Slight hesitation when accelerating - around 3000 rpm. Also seems to
>happen when just cruising along at highway speeds. Any ideas?
Sounds like O2 sensor again, or vacuum leak somewhere (check ISV hoses and
hose from sump to top of engine).
>Sorry for the extended use of bandwidth, going to have time this weekend
>and want to get as much done as I can while the weather is still fall-like.
Steve Manning: email@example.com
...Physical home: Metro D.C. area, USA
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