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coolant system

  1. E90/E91/E92/E93 (2006 - 2013)
    Hi all I think I have a problem with high coolant temperature. At the beginning i am talking about BMW e91 330xd M57 *Diesel engine 170kW. on a usual driving day after not a long time engine temperature reaches 100/115 degrees i have replaced both of the thermostats but situation is the same...
  2. E46 (1999 - 2006)
    Background: I recently purchased an 02 325xi (120k) that was overheating after being driven ~5 min at highway speeds. OBD2 had 2 codes: overheat and misfire/ no fire in cylinder 3. Online research indicated to replace the cooling system. I drove to the part store with no issues, but the car...
  3. X5 E53 (1999 - 2006)
    2005 BMW X5 3.0i I've recently been having coolant system issues/leaks. At random times I will get significant puddles of antifreeze under the car. It seems that it only occurs after a drive of about 30 miles, but it's still not consistent. The check coolant level indicator will come on and...
  4. E46 (1999 - 2006)
    Let me preface that I had a water pump replaced 1000 miles before this happened. SHORT STORY: Car starts to overheat. Tons of white smoke comes out during pressure test at repair shop. First opinion says blown head gasket. Drive it three miles to a dealer to get second opinion, starts to...
  5. 7 Series - E65 / E66 (2002 - 2008)
    I have a major leak on my 2003 745i. When I add coolant to the expansion tank it immediately leaks out of the water pump weep hole (\I believe that's what that hole is) located on the bottom driver side of the water pump...what could cause this issue please help...By the way this is a brand new...
  6. E36 (1991 - 1999)
    So my boyfriends E36 is the first BMW I have ever handled. We just got her last December and just got her out of the shop I think like two weeks ago. (Yes as in she was in the shop for over 4 months. Bull**** I know) After we got her, we came to the conclusion the previous owner had treated her...
  7. E60 / E61 (2004 - 2010)
    Just thought I would share with the community another video I made over the weekend: The following instructions will walk you through replacing the Radiator in your BMW e60. I used this BEHR e60 radiator: http://amzn.to/1G1178P I only paid $165! while the Dealership wanted over $1,000! This is...
  8. E39 (1997 - 2003)
    Hi All, I have E39 , 06 /1998 make , M52 Engine and is EU make saloon car. I have been experiencing weird heating up and now I am confused. When the car is running with speed of > 20MPH / > 40 KMPH the engine heating gauge remains at center and all is fine. If during rush hours I face...
  9. E39 (1997 - 2003)
    Good afternoon folks. This is my first post on here, although I've used the DIY's from the site to fix numerous window regulators on my e39, door handles, and the trunk latch. My mechanical skills though are lacking so most of that has been going out to mechanics, and out of my wallet. I...
  10. E39 (1997 - 2003)
    Hi folks, I'm wondering if my electric (auxiliary) cooling fan is supposed to turn on briefly at start-up, so that the system can check if it's operational. Mine doesn't, but the Bentley manual says that it should run briefly at 20% it's max speed for diagnostic monitoring. I've got the...
  11. 7 Series - E38 (1995 - 2001)
    To whom it may concern, I have a 1997 740 il with right around 180k miles on it. Its old however runs well. Recently I noticed that my car would run at a hotter temperature than normal, however the car was NOT over-heating. I continued to monitor this change until it started to be an issue...
  12. E36 (1991 - 1999)
    Hi. I'm looking to buy an 1994 E36 318is. I know about the cooling problems and many other problems that will happen shortly after I buy this car. What stumps me though, is that after I test drove the car, the engine was really hot. The temp gauge was reading halfway and coolant seemed ok. But...
  13. E36 (1991 - 1999)
    Hello everyone. Brand new here, but just purchased my first 3 series. 1995 convert. When I purchased vehicle coolant gauge stayed in cold position at all times. Replaced coolant gauge sensor last night: As soon as it was installed and I clicked engine over, temp gauge went pretty fast right up...
  14. E85 / E86 Z4 (2003-2008)
    My 2003 Z4 had a waterpump failure (it seized) and the pulley belt was shreaded. I replaced the waterpump but I still find the car slowly losing coolant regardless of whether the engine is running or not. There are no puddles of coolant to be seen. I also find that the temperature guage...
  15. E46 (1999 - 2006)
    2001 BMW 330ci Problem One: when driving the car it seems to switch gears very slowly almost as if it hesitates and a few days ago the tranny went into safe mode! Problem Two: i am getting some type of milky brown anti-freeze leaking from the car, i know that it isnt the headgasket because...
  16. E34 (1989 - 1995)
    Ok,I'll start at the beginning, I bought my 1989 525i from my brother mostly apart all that was left was a nut holding on the exhaust manifold and the belts in front with pulleys and covers. I have since put in the new head gasket, # 6 cylinder was leaking at the rear between block and gasket...
  17. E60 / E61 (2004 - 2010)
    I received a "coolant level low" check control signal on my 2005 BMW 545i and after topping off the coolant with 50/50 mix a couple times and eventually receiving the "coolant level low" signal again, I figured there was a leak in the expansion tank and/or the hoses. A couple days before my...
  18. E34 (1989 - 1995)
    Sooo.... I have a 95 525i and it's overheating. I turned on the heater in the hopes that it wouldn't overheat to no avail. I replaced the thermostat, Pulled the Water pump. And upon inspection i came to the conclusion that it was in working order. I tried to bleed the coolant system and think...
  19. E46 (1999 - 2006)
    I've ordered the following parts from here: http://www.oembimmerparts.com/e46engineparts.html 1. BMW E46 3-Series Disa Valve/Adjusting Unit OEM (do I need any other parts for installation with this) 2. BMW E46 3-Series Blower Motor Resistor/Final Stage Unit (FSU) OEM 3. BMW E46 3-Series...
  20. 7 Series - E38 (1995 - 2001)
    Alright everyone. OK, OK...I joined Bimmerfest....finally after hours of reading. Thank you for all the help so far. The brief. I have a 1999 740iL Black, Black interior, no major upgrade to the engine, 150,000 miles and looks and well....until now....ran like it had 30,000 miles. NOW, for...
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