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  1. EGR Thermostat leaking E90 M47

    General BMW Discussions
    Hi guys, So I’ve been dealing with this issue for a little while now and its starting to irritate me. My EGR thermostat started leaking on me a while back, to which I found the oring had some damage. I then went onto replacing the oring with one from the dealer, reinstalled the thermo as usual...
  2. Lower radiator hose leak at thermostat

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi guys, I had my main thermostat replaced on Friday last week. Since then I've noticed a coolant leak at the lower hose connection where it meets the thermostat. If I wiggle to pipe the leak gets worse. Are there o rings inside the hose connection where it meets the thermostat? It was...
  3. Thermostat housing mating surface damage

    BMW 7 Series - Tech Talk For All Gen Of 7 Series
    Thermostat housing mating surface damage/corrosion Sorry my first ever post is a question - I joined here coincidentally exactly ten years ago to the day but only finally bought a BMW a couple of months ago! 2001 E38 728i (M52 TU engine), 102000 miles. The thermostat housing was leaking, so I...
  4. E46 320d Thermostat

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi, Newbie here with a question reguarding my E46. Ive got an 03 E46 320d 150bhp and need to fit a new thermostat to the car but there seems to be 3 options :confused.How do I find out which ones for my car? Thanks in advance, P
  5. N42 - Coolant Thermostat Question

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi all, Should the hose leading to the Radiator be cold until the temperature needle gets to the midway point on the dial. My car can take over 20 mins for the needle to reach the normal midway point so I'm beginning to wonder if the thermostat is stuck open. I checked the top hose to the...
  6. 05 E46 320d - Car not getting up to temp after thermostat change

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hello, Bought an E46 with a thermo issue - car wouldn't get up to temp, would stay between the blue icon & the white line. Replaced the main thermostat with a Behr stat which has improved the car a lot - car is now getting over the first white line at apprx 11 o'clock but it doesn't get up to...
  7. Oil cooler thermostat from eBay

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Bad month finance wise so money tight, need oil cooler thermostat and expansion tank, my intention is in a month or so get a behr thermostat , so for now eBay, anyone fitted one of eBay, they are like £10 vs £50 Sent from my iPhone using Tapatalk
  8. Engine Thermostat Replacement - Part No.?

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Hi, is anyone able to help me out with the part numbers to replace my main engine thermostat and EGR thermostat? A link on RealOEM would also be handy too. I have a 330D M Sport 2008 Model (Auto). Much obliged.
  9. 2007 E60 523i LCI N53 Thermostat issue - error 2EF7 12023 and P0597 - help/advice?

    General BMW Discussions
    My '07 523i N53 has covered 118k miles. I'm consistently getting the following error when I run INPA and Delphi diagnostics. P0597 Thermostat Heater Control Circuit /Open P0597 Thermostat heating circuit - Malfunction Fail Number 12023 0x2EF7 Map thermostat, control Frequency 40 (seems to be...
  10. E39 thermostat

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi everyone, I have a 525i e39. So I changed my top radiator hose as there was a split in it leaking water. All has been fine for a week and now water is leaking out of the thermostat housing. This is making me think that pressure is building in the cooling system which originally split the...
  11. E63 630i 2005 thermostat replacement

    BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    has anyone any knowledge on how to replace the thermostat on my 2005 car stopped heating the cabin and the temperature warning light came on.. and the bottom radiator hose is cold iv bought the new thermostat as im pretty sure this is the problem..the coolant...
  12. E39 thermostat to E61 - does it fit ?

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi. When i had E39 touring (530d, 142kw automatic facelift) i had problems with thermostats. I bought both, EGR and the "big" thermostat, but faulty was the EGR and so i still have the big one. Now i have E61 (530D, 173kw manual, facelift) and i have problems with my big thermostat :) I just...
  13. Thermostat problem?

    BMW 3 Series Forum - Technical Talk on the BMW E46
    My car takes long to warm up. It takes around 20 minutes driving for the gauge to reach 12 o’clock. I checked ion the obc today and after around 25miles the temperature was 78degrees. Mpg is bad aswell as i am averaging around 30mpg and thats being gentle. Egr or main thermostat? It has egr...
  14. Replacing thermostat 850

    BMW 8 Series Forum - Technical Talk on the BMW E31
    Hello, Car's overheating, getting very close to red on gauge. I was hoping it was low coolant, air bubbles. After looking closer bottom hose on radiator doesn't get hot when heater hoses are near boiling, so hoping it's the thermostat stuck, I've bought a new one. Car's currently miles from home...
  15. The Dreaded Question - EGR / Main Thermostat Failure?

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Hey! First post, asking for help. Forgive me, i'm young and dumb when it comes to this stuff. I'll keep it short and sweet. Would really appreciate the help. Got my 2007 BMW 320D E90 (105k miles) I expected bad fuel economy but not this bad, so I done some digging. Saw the great ordeals with...
  16. Where can I buy a thermostat

    BMW Garages and Parts Retailers
    For a 2006 e90 330d ? Is Cotswold Bmw still doing parts ? Can somebody point me in right direction ,I need both main and egr stat,or should I just go to nearest main dealer
  17. N53 325i thermostat

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Car heater has taken ages to start coming through warm this morning - over half an hour. Think the thermostat might be stuck open Where is the thermostat located on these engines?
  18. How to replace water pump and thermostat. Protect BMW engine 6 cylinder.

    BMW Guides and How To's
  19. Possible thermostat issue ?

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Hi, I am thinking my thermostat on my 07 325D is playing up, I tried taking it for a spirited drive for 30 mins on a dual carriageway earlier staying between 2000-3500RPM and the thermostat read around 60-70 degrees celsius outside temp was 15 degrees celcius is this normal ? As my MPG has been...
  20. 320 D 2002 Touring - correct thermostat?

    BMW 3 Series Forum - Technical Talk on the BMW E46
    For years my temperature display when warm has always been below the 12 pm position, usually around the divider line to the left, and I finally think I should replace the thermostat. On line there appear to be some thermostats that open at 70° and some at 85 - 88° even when I search for...