Question about 2000 BMW 3 Series
Excessive preasure in cooloing system comes from 1. overheating. 2. radiator cap not releasing at prescribed preasure. Combustion gas getting into systen via head gasket failure due to overheating and cracks or pourious cylinder head. A preasure test (120 PSI) of each cylinder at TDC firing stroke will tell you for sure where to go. make sure that the radiator cap is off when you carry out this test. 120 psi will blow radiator and or hoses . Need to stop engine turning over while you carry out this proceedure. You will identify the problem.
Posted on Dec 10, 2012
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Posted on Jan 02, 2017
SOURCE: 2001 BMW 318i se Coolant
check the cap on the coolant ,i had same prob. if the cap is loose the level of water will change.tighten the cap it can be somthing as simple as that.
Posted on Nov 03, 2008
SOURCE: water escaping from radiator cap
If it is over flowing.(Over fill would leak into the overflow tank,Not out of the cap)
This can be due to:
Posted on May 05, 2009
I know that this is going to sound like of dumb but I would check and make sure your thermostat was installed the correct way. I had a similar issue once, after replacing the entire cooling system on a 750iL it still over heated, turned out I put in the thermostat the wrong way. Always check for little mistakes first:) Hope this helps and please don't forget to rate me.
Posted on May 21, 2009
SOURCE: bmw 318i
The car's engine is overheating !
Its not because you forgot to fit in the thermostat there could be other problem, like tht of the water pump, radiator clogged up, cooling fan.
You have to check them all.
Was there any problems before you pulle out tht cylinder head?
Posted on May 25, 2009
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