Vdo gauge help needed

Hello guys a quick question I'm trying to look at the wiring for the vdo gauges on my mk1 1982 1.6 gti, the volt meter is working but the oil temp and oil bar do move but only a fraction is there any reason why it's doing this, I saw a green/grey wire down there that's part of the loom but it's not connected is this meant for either the temp or oil pressure, and lastly I have some illumination to one gauge that's tapped in to the blue and white wire, could I splice in to this to illuminate the other 2 gauges or will it be to much load for that wire and the same for the earth wire illumination, also been seeimg google ans there is mention of audi 80 hauges being put in to the golf and the gauges not reading correctly, could some tell me the difference between both the mk1 golf vdo gauges and the audi 80 vdo gauges , sorry for sounding silly just want pointing in the right direction all help is greatly appreciated.

No such thing as a silly question if you don't know the answer.

What I suspect has happened is that the volt meter works because it doesn't need a sender, it's simply connected to a circuit thats live when the ign is on.

The oil temp and pressure need separate senders that often dont get fitted, esp when using the 3 gauges robbed from an Audi dashboard as people forget the senders or they're already gone or the engines been removed.

You need to get hold of senders that match your guages, ie 0-5 Bar or 0-10 Bar. These are not cheap so another reason they never get fitted. Note for the pressure sender you'll prob need a sender that also replaces the switch for the oil prrssure warning system unless your engine has 2 spare outlets or you use a splitter to fit both senders into one outlet.

Wiring is pretty straightforward and you should be OK extending the illumination from the one thats already wired in.

Thanks early, so with the oil pressure is that taken from the oil pressure switch on top of the oil filter housing or else where, and with the oil temp is it a sender mounted to the side of the head, just so I know if I'm looking at the right places and regarding the gauges again what is a know difference when physically looking at and Audi 80 and a original golf gauge, thanks again early,

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If yours is a S2 '82 1.6 it won't have guages or MFA or wiring as standard. The Audi guages have red/orange needles and sylized lettering, S1 standard gauages dont.

As you said the switch on the filter housing is a on/off switch not an anologue sender for a guage.

The filter housing usually has some blanked off outlets that can be used.

I think the stuff you are looking at are switches and senders used by the Kjet system and not oil pressure/temp senders.

This looks a good write up

View topic: Audi tripple VDO gauges install guide - The Mk1 Golf Owners Club

BAZ-GTI said

Thanks early, so with the oil pressure is that taken from the oil pressure switch on top of the oil filter housing or else where, and with the oil temp is it a sender mounted to the side of the head, just so I know if I'm looking at the right places and regarding the gauges again what is a know difference when physically looking at and Audi 80 and a original golf gauge, thanks again early,

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Early-1800 said

If yours is a S2 '82 1.6 it won't have guages or MFA or wiring as standard. The Audi guages have red/orange needles and sylized lettering, S1 standard gauages dont.

As you said the switch on the filter housing is a on/off switch not an anologue sender for a guage.

The filter housing usually has some blanked off outlets that can be used.

I think the stuff you are looking at are switches and senders used by the Kjet system and not oil pressure/temp senders.

This looks a good write up

View topic: Audi tripple VDO gauges install guide - The Mk1 Golf Owners Club

BAZ-GTI said

Thanks early, so with the oil pressure is that taken from the oil pressure switch on top of the oil filter housing or else where, and with the oil temp is it a sender mounted to the side of the head, just so I know if I'm looking at the right places and regarding the gauges again what is a know difference when physically looking at and Audi 80 and a original golf gauge, thanks again early,

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Thanks early, I remember few years ago the buzzer used to sound and oil light on the dash illuminated so I changed that switch on top of the housing, so mine being a 82 1.6 GTI wouldn't of had gauges which makes me think someone has added them after wards which could explain why the wiring ain't been done properly, I seen T Pieces that you put where the switch is and then run the wire to the gauge and still retain the switch and the original wire on the T Piece,

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