Mark,

Just went through pretty much the same thing.  Replace the switch with a .9
bar switch.  You almost certainly have a 1.8 bar, which is set too high.

Karl Wolz

----- Original Message -----
From: "Mark & Laura Magee" <marklaura@HOUSTON.RR.COM>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, July 11, 2001 8:56 PM
Subject: 90 Vanagon Oil Press Buzzer & Oil Light's on: Tis a Mistery

> Volks,
> A dash buzzer went off me the other day intermittently and I had never
> heard it before and didn't know what it was signaling. I later in the
> drive (almost home) notice that when the buzzer buzzed, the oil light
> flickered. I discussed this with my wife, to keep a sharp eye on this
> situation. I jumped in my other sled and went to work, wife called later
> and buzzer scared her, she pulled over and oil had been lost, about 1
> quart.
> I traced the oil leak to the oil pressure sending unit located near the
> oil pump. I talked to my mech and between his opinion and my own
> experience I replaced the sending unit. This fixed the oil leak, but now
> the buzzer -still- goes off after about 10 minutes of driving and the
> oil lights on.
> My mech tells me their were apparently problems with this IC board that
> contains this buzzer unit, and it is prone to failure.
> There are no other symptoms. Car no longer leaks and runs great, but
> buzzer buzzes and oil light flickers after about 10 mins driving.
> I am lost at explaining how the sending could fail (leak oil) and that
> simultaneously the IC board could fail that sets off the buzzer and oil
> light. I suppose it it possible that this first "buzz" on the buzzer
> fried some component on the board.
> Nonetheless, anyone have this happen to them. I think my mech will
> recommend disconnecting the buzzer (if I can get to it!), as he said he
> has done in quite a few VW's due to defective IC board/components.
> Anyone have any ideas? Should I disconnect the buzzer unit? Will this
> disable the idiot light function.
> I will probably install a gauge in the future, but for know I can't
> drive to unnerving feature of buzzer scaring wife into thinking she is
> cooking the engine.
> Any and all help/feedback appreciated.
> Mark Magee
> 90 Vanagon Carat
>