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2004 BMW 325 cooling system

Tiny
MHOOK
  • MEMBER
  • 2004 BMW 325
Engine Cooling problem
2004 BMW 325 6 cyl Two Wheel Drive Automatic

Recently the car overheated.I check the system out and notice there is a leak on the expansion tank. What can cause the expansion tank to leak? Is there any way to check if there I any damage to the engine?
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Sunday, April 11th, 2010 AT 3:59 PM

2 Replies

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Plastic tank, cracks when it is hot and cold several hundred times, also called thermal cycling. Damage? I dont know. Did you drive it in the red?
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Sunday, April 11th, 2010 AT 7:43 PM
Tiny
MHOOK
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No luckly I made it to my destination b4 it go to the red mark.
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Sunday, April 11th, 2010 AT 9:48 PM

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