1995 BMW 318i is over heating

Tiny
HONU1
  • MEMBER
  • 1995 BMW 318I
  • 4 CYL
  • 2WD
  • AUTOMATIC
I have a 1995 BMW 318i, three years ago I replaced the radiator which is still good, it just had a minor tune up and we replaced the fan clutch because the fan was very slow, we also replaced the thermostat with including o ring and gasket and we also flushed the radiator and added new coolant 50/50. But we noticed the heater is not working. So even after all that we have done, we start the engine and after a few minutes the temperature reading goes pass have and continues to climb. Can you please help us. Mahalo
Tuesday, April 19th, 2011 AT 5:49 AM

5 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Was it overheating before you did this? Did you get all air out of system? Are you sure it's full? What about water pump?
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Tuesday, April 19th, 2011 AT 9:21 AM
Tiny
HONU1
  • MEMBER
  • 4 POSTS
No it was fine and it never over heated before, not once. But we also thought that it could be a air bubble causing this problem or the heater is not working and it worked before. Are you thinking air bubble? Because what else could it be?
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Tuesday, April 19th, 2011 AT 9:36 AM
Tiny
HONU1
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  • 4 POSTS
Water pump, not sure about water pump, but again there was no issues before yesterday problems. Its got all of us wondering? This is crazy
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Tuesday, April 19th, 2011 AT 9:40 AM
Tiny
HONU1
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  • 4 POSTS
Is there anyone out there that may have an idea?
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Tuesday, April 19th, 2011 AT 5:26 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
If the heater is not working, that is another sign that the coolant is not full that there are air pockets that dont allow flow thru heater core.
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Wednesday, April 20th, 2011 AT 5:11 AM

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