'94 325i overheating help please:)

[angilfyre]

Hi,
I have a 1994 325i and the engine keeps overheating. I have replaced the radiator, expansion tank, expansion tank cap, lower and upper radiator hoses, overflow hose, sensor attached to expansion tank, and thermostat (88 degree). I also use bmw coolant (50/50 combination of water/antifreeze). The only other thing i can think of on the coolant system is the water pump. Could it be anything else? Thanks

[Furious]

-water pump on a 1994 was not metal it a very good possiblity that its bad.
-also you might have replaced the problem but didnt bleed the system properly leaving an air pocket in the engine.

[nukeduster]

Crack in block/head.. too.

But make sure its bled correctly first.

[EricBimmer22]

I had the same problem with my 95 325i and it turned out that I had a bad head gasket. I had a leak down test performed before I started replacing all the parts that you already have completed. Did a mechanic suggest that you replace all those parts? I mean it never hurts to replace a $12 thermostat. Also I guess a minor possibility could be the fan clutch too.

[phathaway]

Probably the water pump, I had the same problem with my 94. From what Ive read the water pumps tend to fail sometime after 100,000 miles. I talked to a guy at the BMW dealer near me and he was amazed my car last 140,000 miles before it failed.

[angilfyre]

hi..
I got the water pump replaced and it still ran hot. It turns out that it is the cylinder head. I am not going to get it milled / machined. Instead I plan on buying a refurbished or new engine. Does anyone have any advice on the refurbished? I have not obtained a price on refurbished yet, but a new is 7k. Thanks for any advice! =)