[s-cars] Oil Leak 94 S4

Mark Strangways Strangconst at rogers.com
Sun Feb 13 13:21:39 EST 2005

My 92 leaked from the oil pressure sender / oil pressure switch as well.
Leaked badly too as I recall.

Add this to the portal of knowledge ;-)

----- Original Message ----- 
From: "Igor Kessel" <KBATPO at comcast.net>
To: "S-CAR-List" <S-CAR-List at audifans.com>
Sent: Sunday, February 13, 2005 1:16 PM
Subject: Re: [s-cars] Oil Leak 94 S4

> Fred Munro wrote:
>> Aaron;
>> The sensor is located on the left upper side of the engine near the 
>> front.
>> The oil can run down the block, pool in the oil pan flange cast into the
>> block, and run out at the rear of the block. On my car I initially 
>> thought
>> the oil pan gasket was leaking because the entire flange was wet with oil
>> front to back.
>> Fred
>> -----Original Message-----
>> From: Aaron [mailto:aaront at cox-internet.com]
>> Sent: February 10, 2005 8:40 PM
>> To: Fred Munro
>> Cc: Gregory Wolters; S-CAR-List
>> Subject: Re: [s-cars] Oil Leak 94 S4
>> Ive noticed some leakage which seems to be coming from the bell housing
>> but Im not sure.
>> Where is this oil pressure sensor located?
>> Thanks
>> Aaron
>> Fred Munro wrote:
>>>Yeah, I think these are starting to fail, Greg. I replaced mine last 
>>>I've seen a couple other posts about oil pressure switch failures on the
>>>older UrS cars. Guys, if you've got oil down the left side of your 
>>>take a close look at the oil pressure switch. You really don't want to 
>>>the plastic centre out of it at highway speed.
>>>Fred Munro
>>>'94 S4
>>>-----Original Message-----
>>>From: s-car-list-bounces at audifans.com
>>>[mailto:s-car-list-bounces at audifans.com]On Behalf Of Gregory Wolters
>>>Sent: February 10, 2005 7:12 PM
>>>To: S-CAR-List
>>>Subject: [s-cars] Oil Leak 94 S4
>>>Hi All,
>>>Upon closer inspection, I determined that the problem
>>>was a leaking oil pressure switch, which is above the
>>>oil pressure sensor.
>>>Part was less than $8.00 at local import parts place,
>>>had same numbers on it as the Audi one that came out
>>>and the guy said it was S4 specific.  Now I get to
>>>deal with a belly pan full of oil.
>>>94 S4
> The ON-OFF oil pressure switch is a typical source of the leak. They are 
> made like crap and usually leak at the crimping of the metal body around 
> the plastic insert.
> Yesterday a friend of mine with a '94 UrS4 called me up from a NH ski 
> resort, told me that his switch was running like a sieve and asked for an 
> advice as to what could be done in the field far away from home on a 
> Saturday night short of summoning a tow truck. I told him to remove the 
> switch and plug it with any 10x1mm bolt so that he could make the trip 
> back home.
> -- 
> Igor Kessel
> two turbo quattros
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