If your oil-level gauge starts acting erratically or shoots to the top, it is almost certainly a faulty oil-level sender unit in the oil tank. This just happened to me and I decided to change the unit myself.
Parts required:
Here's how I did it.
Remove the off-side rear wheel. The oil tank is tucked in the front of the wheel arch.
The oil- level sensor is covered by a flap.
Brush off all the crap around the top two nuts.
Take off the cover and you will see the sender.
Brush off more crap and you will find four nuts.
Liberally dose with WD-40 and remove nuts.
This is when I had a real problem in that I could not prise the sender plate away from the tank. Lots of WD-40 and a big screwdriver and it eventually came. See how it is mangled. Got worried it would never come or that I would pull off/damage the screw studs.
You can see below the rubber gasket still in place.
Remove sender and gasket and clean-up
Fit sender and new gasket.
Next problem was the old cable disappeared into engine behind some oil pipes in a very inaccessible place.
No way did I want to start undoing those cable ties holding these three pipes together in order to find the hole and thread in the new cable.
So I cut the new cable and joined it to the old cable . Bodge job I'm afraid. You can see the taped join and the new cable ties tying things together. I DO NOT RECOMEND YOU BODGE LIKE THIS. I'm told that if I had pressure-washed all the junk off in the wheel arch I would have had no probs finding the hole into the engine bay etc. I don't expect my bodge join to last long!
Took me a couple of hours all in. I would recommend getting your specialist to do it. Probably will only cost you an hour's labour and no surprises or bodges!.
