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1993 BMW 318

Tiny
MEASTMAN73
  • MEMBER
  • 1993 BMW 318
Engine Cooling problem
1993 BMW 318 4 cyl Two Wheel Drive Manual

Why does my 318is keep on over heating? I replaced the water pump, thermostat, coolant temperature sensors, radiator fan switch, the fan relay and by passed the fan. The fan works when by passed but desnt come on when the car is hot. So I had the radiator replaced and brought it to a mechanic. On the way home the car overheated again only 3 miles away from the shop? What else can I do?
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Tuesday, October 14th, 2008 AT 10:03 PM

6 Replies

Tiny
DOCHAGERTY
  • MECHANIC
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Is the fan clutch still good? There should be an engine driven fan on that model, not just an electric fan.
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Tuesday, October 14th, 2008 AT 11:07 PM
Tiny
MEASTMAN73
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It appears to be good visually? It doesn't make noise when the engine is running, How can I tell for sure?
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Wednesday, October 15th, 2008 AT 9:27 PM
Tiny
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If in doubt, replace it.
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Wednesday, October 15th, 2008 AT 10:34 PM
Tiny
MEASTMAN73
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I did and it still over heats. There is no coolant in the oil or vica versa
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Friday, October 17th, 2008 AT 7:27 PM
Tiny
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There could be occlusion in the engine (steam holes plugged in the head gasket) The "mechanic" you had do the work may need to recheck his work as well.
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Saturday, October 18th, 2008 AT 9:45 AM
Tiny
MEASTMAN73
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Also the heater doesn't get hot at all? Is this due to the engine oclusion or is it the heaer core thats bad? Arethey related?
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Wednesday, October 22nd, 2008 AT 10:21 PM

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