Page 2 of 3

Re: Thermostat ,is it the problem ?

Posted: Fri Jan 17, 2014 1:21 pm
by Colin
Yes the main one , and the sooner i get it the better  because my mpg is suffering  as much as 4 mpg !...

Re: Thermostat ,is it the problem ?

Posted: Fri Jan 17, 2014 8:39 pm
by 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.

Re: Thermostat ,is it the problem ?

Posted: Fri Jan 17, 2014 8:43 pm
by 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)

Image

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?

Re: Thermostat ,is it the problem ?

Posted: Sat Jan 18, 2014 1:08 pm
by 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)

Image

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?

Re: Thermostat ,is it the problem ?

Posted: Sat Jan 18, 2014 1:40 pm
by 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

Re: Thermostat ,is it the problem ?

Posted: Sat Jan 18, 2014 10:13 pm
by 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!

Re: Thermostat ,is it the problem ?

Posted: Sat Jan 18, 2014 10:29 pm
by Colin
This is my first BMW diesel  mines sept 05 E53 , id thought these diesels were well used across the range .

Re: Thermostat ,is it the problem ?

Posted: Sun Jan 19, 2014 9:26 am
by 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!

Re: Thermostat ,is it the problem ?

Posted: Sun Jan 19, 2014 10:47 am
by 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

Re: Thermostat ,is it the problem ?

Posted: Fri Jan 24, 2014 7:52 pm
by Colin
UPDATE ON STAT ,  booked the X in tomorrow morning (saturday ) for new stat install , hope it makes a difference , ...

Re: Thermostat ,is it the problem ? ( FIXED )

Posted: Sun Jan 26, 2014 9:37 pm
by 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 ..

Re: Thermostat ,is it the problem ? ( FIXED )

Posted: Mon Jan 27, 2014 8:16 pm
by 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 8) 8) 8)

Re: Thermostat ,is it the problem ? ( FIXED )

Posted: Tue Jan 28, 2014 10:31 pm
by 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

Re: Thermostat ,is it the problem ? ( FIXED )

Posted: Wed Jan 29, 2014 10:59 am
by 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

Re: Thermostat ,is it the problem ? ( FIXED )

Posted: Wed Jan 29, 2014 11:08 pm
by 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