Current fault is the oil level sensor, on the check control the light is always on.
We've traced the wire to what I presume is the pre facelift c101 plug, a rectangular 19 pin plug on the pas side wing the colours up to it are correct to the below drawing yellow and blue and green and Violet but after it we have two wires coming from it a red with a thick black stripe and black with a thick red stripe.
Currently the oil level sensor looks to have had the top electrical bit broken off and siliconed over and the wires from the c101 have a male and female bayonet crimps on with the clear coated boots like BMW used these are currently connected.
We believe the car should have the two pin (brake pad sensor style) plug oil sensor that earth's through the engine rather than a separate earth through the 3 pin plug like on the newer style.
We've tried earthing each one in turn but the light stayed on and we've tried earthing both and still the same, but then again as its never worked while Adam has had the car we don't know how it's supposed to work.
How should the check control work? Should it light up on the ignition and then go off whe the car is running or do you have to press reset everytime you get in?
We have a used sensor on the way but thought we could prove it first to check nothing else was a miss.
Can anyone offer any advice?
