I believe the dual sender is trouble, since the dynamic oil pressure
whatever is going to be buzzing because it is not compatible. A have the
single VDO sender (not installed yet) and just got a VDO metric tee fitting.
It says on the carton: VDO 240 850D, T-adaptor M10x1 VW appl, V3092001391D,
and I paid $10.00 for it. This will mount directly to the hole for the
original sender, wich them you can mount to the T, and use the hose kit, or
a grease gun hose, the I bought for $3.00 and an adapter, NPT to metric, if
you wish. Let me know how it goes, my van has been in the shop for almost a
month ( auto tranny trouble, it eats the pump) and haven't been able to do
this installation myself.

> I'm going to have my local VW Guru install a VDO Oil
> Pressure gauge in my 90 Carat. I got the dual sender
> which will continue to allow my idot light/buzzer to
> work.
>
> As I understand it ....this gauge needs a certain
> amount of specialized hardware to make it fit/work.
> that is not included. I saw Bus Boys offers a VDO
> Adapter Pressure Hose Kit for $27.
>
> Is this the best way to go...or does someone from the
> List have a better system?