Re: OIL Buzzard

[steveb@falcon.kla.com (Steven Buchholz)]

> Sir, the oil warning system on your particular Audi is prone to 
> electrical gremlins!
> Their are two sending units located on the drivers side of the block, 
> just below and aft of the thermostat. Or insind of the dipstick!
> These two senders, a white one(yellow from age) being the HIGH pressure, 
> 1.8 bar sender, and the brown(black) one being the LOW pressure 
> sender,0.3 bar. These two senders merly provide a ground at a certain 
> pressure. This signal is applied to a RELAY, under dash just above your
> left foot! I believe its part # is 443 919 082.  These have been known 
> to go bad. I have replaced three of them in my car(two from salvage 
> yards) and replaced both senders once. The system works fine after the 
> relay change. Try the relay, then the senders!
> 
... I haven't had the dynamic pressure system fail on any of my cars yet
[knock on zebrano], but I did check the Bentley for the 4k on this in 
response to someone's problem report.  It does sound like the dynamic 
system is prone to problems.  The 4k Bentley shows that the relay only
deals with the high pressure switch and the tach input ... the low 
pressure system works just like normal cars :).  If I ever do get a 
failure of the high pressure system I will simply remove the relay; 
disabling the HP system, but leaving me a normal idiot light.  I would 
then find some way to work a real oil pressure gauge into the dash ...

Steve Buchholz
s_buchho@kla.com
San Jose, CA (USA)