Thermostat ,is it the problem ? ( FIXED )

[Colin]

Yes the main one , and the sooner i get it the better  because my mpg is suffering  as much as 4 mpg !...

[jaynana]

that is very unusually low.

as said i have this temperature issue, car does school runs most days, mpg is around 19!

i know there's no prob because on motorways i get about 33 - 34mpg.

[jaynana]

[quote="storminmike"]
If all the above tests fail keep a look out for the auxillary pump

Mine wouldn't go above the first tick even after the main stat had been replaced. The heat in the cabin was bobbins too

Turns out it was the aux (electrical) pump which IIRC is next to the rad on the smaller pipes going to the Webasto and Cabin

Car dead centre and cabin nice and toasty....

54 plate X5 Facelift 3.0d


ps mine was without an EGR thermostat based on the year....and I looked as well...and there was none


Look here

Picture of EGR thermostat....but on my car...No parts found matching your car.

http://www.realoem.com/bmw/showparts.do ... g=11&fg=50

Whereas this shows the setup WTHOUT EGR

http://www.realoem.com/bmw/showparts.do ... g=11&fg=50
[/quote]

thanks for that, mine's also without thermostat.. (the bronze coloured pipe is the EGR jobbie)



btw i tried to do the replacement and went half way - the blo0dy thermostat screws need a female torx set!!!  >:D had to give up for now! and ordered a female torx set!

another issue is the EGR valve can be fused to the exhaust manifold due to extreme heat. how do i take that off?

[storminmike]

[quote="jaynana"]
[quote="storminmike"]
If all the above tests fail keep a look out for the auxillary pump

Mine wouldn't go above the first tick even after the main stat had been replaced. The heat in the cabin was bobbins too

Turns out it was the aux (electrical) pump which IIRC is next to the rad on the smaller pipes going to the Webasto and Cabin

Car dead centre and cabin nice and toasty....

54 plate X5 Facelift 3.0d


ps mine was without an EGR thermostat based on the year....and I looked as well...and there was none


Look here

Picture of EGR thermostat....but on my car...No parts found matching your car.

http://www.realoem.com/bmw/showparts.do ... g=11&fg=50

Whereas this shows the setup WTHOUT EGR

http://www.realoem.com/bmw/showparts.do ... g=11&fg=50
[/quote]

thanks for that, mine's also without thermostat.. (the bronze coloured pipe is the EGR jobbie)



btw i tried to do the replacement and went half way - the blo0dy thermostat screws need a female torx set!!!  >:D had to give up for now! and ordered a female torx set!

another issue is the EGR valve can be fused to the exhaust manifold due to extreme heat. how do i take that off?
[/quote]

That looks just like my car....No EGR thermostat...just a link pipe
But...and I confess....my indy did the main thermostat....and later the aux pump
He may have left that link pipe alone to get at the main thermostat underneath?

[Colin]

Same as mine too , that link pipe has to come off  for ease of access to stat  which is just below , you can see the bottom hose connected to it , not easy got at with big hands . OH and dont drop anything . lol

[Caesium]

That pic is strange to me.

I've had four different model cars with the six pot diesel, and none of them had that set up!

[Colin]

This is my first BMW diesel  mines sept 05 E53 , id thought these diesels were well used across the range .

[jaynana]

[quote="COLIN"]
Same as mine too , that link pipe has to come off  for ease of access to stat  which is just below , you can see the bottom hose connected to it , not easy got at with big hands . OH and dont drop anything . lol
[/quote]

Any suggestions on how to remove it off the exhaust manifold. Just 2 Allen screws but pretty sure it's fused due to extreme heat!

[Colin]

I must admit it wasnt me who took it of BUT i was watching and holding the torch ( v important job ) allen or hex im not sure  but just seemed to come of no bother , getting the four bolts of the stat were tricky to get at , i could hear mumbling and some bad words used, then all hell broke loose when he droped a bolt down the front of the engine ,THEN the shit hit the fan when he discovered he had been sent the WRONG stat and had to put it all back together, will get correct stat on monday , up side is at least he got a practice run at it , lol

[Colin]

UPDATE ON STAT ,  booked the X in tomorrow morning (saturday ) for new stat install , hope it makes a difference , ...

[Colin]

New stat installed  and working great , temp needle straight up at twelve position in no time , thinking back the needle never went up there from i bought it  so must always been faulty , great heat now ..

[storminmike]

[quote="COLIN"]
New stat installed  and working great , temp needle straight up at twelve position in no time , thinking back the needle never went up there from i bought it  so must always been faulty , great heat now ..
[/quote]

EXCELLENT

[Colin]

My MPG is now back up to 32 on the OBD  it had dropped to 28, and drives much better , gear change smoother , and probably a lot of other things we dont know about , i love the extra heat , lol

[X5Sport]

Below the correct operating temp the car stays in 'cold' program mode so it will be much smoother now.  Glad it's sorted, and if the weather forecast is anything to go by just in time too.... :cold:

Richard

[Colin]

Yes weather taking a cold turn , im looking forward to getting the remote start fitted for the webasto ,soon i hope ,, Richard do you have a webasto on the E71  .. Colin