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2003 BMW 325 Engine Temp

Tiny
MOSINGH
  • MEMBER
  • 2003 BMW 325
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 88,000 MILES
Engine temperature is normal when idol however when driving temperature falls signficatly
Tuesday, January 15th, 2008 AT 6:06 PM

7 Replies

Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
You have a bad thermostat. It is always open. Very common. I just bought one from dealer. Cost is about $80. It comes with the housing and the cooling temp sensor. Hope this helps.
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Tuesday, January 15th, 2008 AT 6:09 PM
Tiny
MOSINGH
  • MEMBER
  • 4 POSTS
Sounds good. How difficult is it to change this?
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Tuesday, January 15th, 2008 AT 6:13 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
If your mechanically inclined, you can handle it. You dont need any special tools.
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Tuesday, January 15th, 2008 AT 6:44 PM
Tiny
MOSINGH
  • MEMBER
  • 4 POSTS
Where is the thermostat on the BMW located?
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Wednesday, January 23rd, 2008 AT 4:23 PM
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
The upper rad hose connects to it, on the engine. It comes as an assembly, the whole housing with the sensor on top of it. It costs about 80 from bmw.
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Thursday, January 24th, 2008 AT 6:41 AM
Tiny
MOSINGH
  • MEMBER
  • 4 POSTS
Is there an easy way to get the engine fan off?
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Thursday, January 24th, 2008 AT 4:19 PM
Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
It requires special tools. It takes a 36MM end wrench and a holding tool for the pump pulley. You might be able to get it off with a 36MM wrench and a couple of sharp whacks with a hammer to shock it loose. It is left hand thread BTW.
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Thursday, January 24th, 2008 AT 6:13 PM

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