Your golf gti oil pressure light keeps coming on saying stop engine check oil pressure but no oil is needed?

Answer 1

Due to the possible seriousness of low oil pressure, I suggest you (asap)check the actual oil pressure using a oil pressure gauge and compare the result with manufacturers/workshop manual specification.

I believe its possible to unscrew the existing oil pressure switch from the main oil gallery/engine and fit a oil pressure gauge (0 to 100psi).

If the oil pressure is at the value (or near it) that the manual states , then the oil pressure switch is faulty and should be replaced

If the oil pressure is low then further investigation is required as to why it is low, could be the oil pump, but also could be other causes.

This happened to my brother's engine this week. He has a 2005 Mark V Golf GTI. The problem is a fault with ALL Mark V engines. There's a gauze filter in the oil pickup pipe going from the bottom of the engine to the oil pump that gets completely blocked up. Even if you're Golf is not showing this fault at present, it may be starving the turbo of oil anyway (if you have one).

Solution: Drain oil from engine (remove bung in sump), before you remove sump, there's 3 bolts that go through the gearbox housing into the sump. Remove these. Remove sump (Allen key). There's no gasket between sump and engine. Rub old sealant off rim. You will be able to see right up into the engine at this point. There is a small pipe going from the oil pump into where the sump was. This pipe is normally sitting in the oil and it sucks up oil from the sump into the oil pump when the engine is started. The pipe is fixed to the oil pump with one Allen-key head screw and a rubber O-ring. Remove this and take off the pipe. The gauze filter is at the end of the pipe. Try and get a replacement from a motor-factor. Alternatively, you can clean it out well using petrol. Clean the sump well with petrol.

Replace all parts in reverse order! The job took about 3 hours to do and the car drives like a rocket now! If you're not confident enough to do all of this yourself get someone you know that's used to working on engines.

BE WARNED - if you continue to drive your car with this fault light coming on you will be shopping for a new engine very soon.