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1984 BMW 318i Overheating

I have a well loved 318i Tourer.

It recently started overheating. The cooling system didn't seem damaged in any way, and i assumed it was the water pump - so replaced it.

This helped for a while, but then it started overheating again.

I have been advised it may be the head gasket that is causing it, but the engine still runs as well as it did, and there is no sign of water in the oil, although i haven't checked compression on all the cylinders yet.

Could it be caused by a blockage in the cooling system or the Thermostat being stuck open or closed?

Surely overheating would lead to the head gasket going, and not vice versa?

Any advice would be gratefully recieved!

Reply to
MattyG
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change the thermostat (cheap) and get the radiator flushed.. there may be blockage in there

Reply to
furious gibbon

Reply to
joe_tide

I had this happen to my 318i. After checking everything under the sun I found that it was due to an exaust valve that had gotten out of adjustment and lost all of it's clearance. It was the #2 valve which is right beside the temperature sensor. I didn't find it in time to avoid the valve getting burned a little so I had to overhaul the head.

Reply to
Jack

I have a 1984 325e that was over heating, I tried all the things that have been given you, I even wired my fan to come on by switch. I found on my car the air conditions condenser fins were all smashed flat and the radiator was not getting any air at slow speeds or at traffic lights. It was beyond repair, I removed it, had leak under dash anyway so air condition did not work anyway, all is fine now. David.

Reply to
superfrog

Cheers for advice. This seems to be what most people are telling me. Hopefully that will sort the problem, for alot less expense!

Reply to
MattyG

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