Every 1200 miles or so the low water light comes on. The expansion bottle is almost empty and it takes about a litre or so to refill it. Its not going into the oil. Anyone got any ideas?
water pump leaking? coolant flange? crack in bottle? any air bubbles in bottle? ever overheated?
You may have a leak that only appears under max pressure and thus only excretes steam and leaves no wetness. Check round base of rad for dampness especially seams.
Filler cap could have crud behind a valve. Remove and clean.
Look for limescale deposits...
There is still some oily crude in the water system from when the oil/water cooler ruptured and leaked oil into the system. The whole expansion bottle and cap has been replaced twice, but you would know it as its totally black with sludge!
Its had:-
New water pump and gasket
new thermostat housing and thermostat (washer inc)
new expansion bottle x 2
oil/water cooler
radiator poressure tested
compression tested
only thing i thought was leaking water through the heater core, but I aint getting water inside the car.
Its been doing this now for over 40,000 miles and I still cant track it down, its getting no worse - but no better either!
I may have to use the swearword - RADWELD!
Or an egg :wink:
Was that hall sender what you were looking for?
ever have a fuel leak around the injectors or pump?? check the hose from the flange on the head to the oil cooler and to the water pump, that was my leak with the mysterious coolant loss, just a thought
Was that hall sender what you were looking for?
That was for my G40 - You can buy a hall sender replacement kit for £107 +VAt from VAG or a brand new dizzy for £81.40 + VAT. So I ordered a complete new Dizzy. Means the car is going to have to be timed and setup again. But it also means that a few things can be tweaked when its on the rollers!