Fuel gauge and sender problems

[Stannum1574]

Hi all.

I own an '87 Golf Cabriolet.
The gauges died completely recently and I was told that it would be the three pin voltage regulator on the back of the instrument cluster. I bought a replacement regulator from VW and it cured the problem. However, since replacing the regulator the gauges occasionally stop working and then come good again later. They're generally good after the vehicle has sat for a long time but then go off after a drive if I stop the car and then re-start it. My guess is that it's a loose connection of some kind but I wondered if anyone else has had a similar problem and found the cause.

My other problem is that I think the fuel sender has had it. I tried buying one from VW (Northern Rivers VW, Lismore) but they insist that it's no longer available. It's located beneath the rear seat, not in the boot as some are. The car has a carby 1.6 litre engine so this sender unit doesn't have a fuel pump attached to the bottom of it (which the other sender pictured for this model looks like it does have). I'm fairly certain that the part no. is 533 919 051 F - this is the part no. that I quoted to VW. I'd be very grateful if anyone could point me in the direction of a replacement - even a good second-hand unit would get me out of trouble.

Thanks, David.

[RedMk2Gti]

Hi all.

I own an '87 Golf Cabriolet.
The gauges died completely recently and I was told that it would be the three pin voltage regulator on the back of the instrument cluster. I bought a replacement regulator from VW and it cured the problem. However, since replacing the regulator the gauges occasionally stop working and then come good again later. They're generally good after the vehicle has sat for a long time but then go off after a drive if I stop the car and then re-start it. My guess is that it's a loose connection of some kind but I wondered if anyone else has had a similar problem and found the cause.

My other problem is that I think the fuel sender has had it. I tried buying one from VW (Northern Rivers VW, Lismore) but they insist that it's no longer available. It's located beneath the rear seat, not in the boot as some are. The car has a carby 1.6 litre engine so this sender unit doesn't have a fuel pump attached to the bottom of it (which the other sender pictured for this model looks like it does have). I'm fairly certain that the part no. is 533 919 051 F - this is the part no. that I quoted to VW. I'd be very grateful if anyone could point me in the direction of a replacement - even a good second-hand unit would get me out of trouble.

Thanks, David.

I've had similar problem with my Mk1. 2 things you should do first before buying new/used parts. Pull the sender unit out and 1) test the Ohm reading range. IIRC it shd be between 0 to 200ohm I'll try to dig some figures. if it's not good you need another sender unit 2) do a electrical continuity test, if it's not good then you have wiring problem.

[Peter Jones]

Probably same as this one.

http://www.germanautoparts.com/Volks...bit/Fuel/326/3

A MK1 Diesel sender would probably be the same too.

Pete