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RE: Oil pressure icon blinking on '91 200Q
The engine has rpm selected oil pressure sensors. The low rpm sensor is
built into a sensor that also drives the pressure gauge in a separate
section. The pressure can be displayed as OK and the light still flash.
Sorry you have to buy a sensor to fix just half the item.
You'll notice the large bulb has 2 wires coming from it.
This info will get you going on the right track. Of unhooking the right
wire to see if the problem goes away.
[mailto:owner-200Q20V@pdikeman.ne.mediaone.net] On Behalf Of Frank Stadmeyer
Sent: Thursday, July 16, 1998 7:39 PM
To: James Desveaux; email@example.com;
Subject: Re: Oil pressure icon blinking on '91 200Q
ARGGGHHHH! I really was hoping it might be someplace outside the
instrument cluster. Out comes the Bentley I guess. Maybe I'll put a bulb
in the Check Engine light while I'm in there. Any BTDT's on going after
the circuit board?
At 09:32 PM 7/15/98 -0700, you wrote:
>It could also be a failing circuit board in there. I've heard of those
>going out, and the best Audi guy at Beverly Hills Porsche Audi confirmed
>that for me today. So far, it's only the oil pressure icon for me. I'll
>check the sending unit, and the contacts. But, as you point out, it might
>also be bad contacts. If so, I guess you have to get inside the instrument
>At 10:08 PM 7/15/98 -0400, you wrote:
>>Must be a '91 200Q epidemic!!! Same thing happened to me Sat. (same
>>drill - stop the car, check the oil level etc.) same results. Then
>>yesterday except I'm smarter now - shut off then back on. Whoops didn't
>>work, auto-check still on. Goes out shortly thereafter. Oil pressure
>>O.K. I'm also having intermittent erroneous miles to empty readings.
>>Which contacts do I have to clean?
>>'91 200Q '89 100Q
>>'86 Jetta Gli '85 Jetta
>>'73 BMW 2002 (hanger queen)
>>At 08:18 PM 7/14/98 -0700, James Desveaux wrote:
>>>Today I finally fixed the bothersome worn brake pad icon problem. Went
>>>my friendly german auto salvage yard in Watts and pulled the female-side
>>>brake sensor plug-in from an S4 and spliced it in, replacing the
>>>one. About 2 hrs later, I drove over a pretty decent sized bump and
>>>beeps. This time the icon was red, and the oil pressure oil can started
>>>flashing. THe oil pressure gauge was reading fine (between about 1.8-2.2
>>>bar at idle and up to 5 bar at speed). THough I figured this is another
>>>typical Audi electrical gremlin, I pulled over, checked oil, etc. After
>>>miles since changing it, oil is exactly full (with none added) and there
>>>NO leaks. I restarted the car, and the big OK lit up, and then the radio
>>>station. A few seconds later, the beep returns with the red icon. I
>>>driving down Bundy Drive (yes, THAT Bundy), and a short time later (hey,
>>>beep is gone), I notice that the radio station frequency is illuminated
>>>the display. No more beeps and icons.
>>>Question: Anybody had this happen to them? Is it a corroded connection
>>>the sending unit, or some such thing? The car has 91k on it now, but
>>>everything's pretty much spud on it. I bought it at 88k and did the
>>>precautionary things, such as t/b, w/p, front main seal, etc. Any advice
>>>would be appreciated.