330d low coolant temp, review. - BMW 3-Series (E90 E92) Forum

Dan-danGT · 01-12-2013, 04:21 AM

Hi everyone, well since having my 330d it's been poor on fuel in my opinion. So checked coolant temp, would barely go above 77c so I realised there is a fault. Obviously the main thermostat is a bit more involved to do. So I found a egr valve thermostat made by mahle!
Ordered it and it came at 8 this morning, by 8:50 it was fitted and done! Well just before I got to work it was at 77-78c, well since fitting the new stat it's now up to 80-82c. Not been on a decent drive yet. Might still need a main stat but I'm making progress!
While the old stat was off I blow through the stat and it was straight through the stat had not closed so it was definitely faulty.

Just thought I would share that info with you, even though its been covered.
Dan

oldbilly · 01-12-2013, 07:53 AM

for the cost I changed both on mine just to be sure, this will ensure you get the correct temps and benifit from the increased mpg.

Dan-danGT · 01-12-2013, 11:03 PM

Don't worry I'm going to do the other one, just wanted to do the quick One first and see what happens. So far an improvement, just need the main stat now

Dr Dave · 01-13-2013, 03:20 AM

The main one isn't that difficult to do.

Where did you get your EGR one from?

Dan-danGT · 01-13-2013, 08:01 AM

eBay £18.50 plus 3.99 p+p from another country. But it arrived fine and it was a mahle part so decent make.

01-12-2013, 04:21 AM	#1
Dan-danGT Private First Class Drives: E90 330d M-Sport Join Date: Dec 2012 Location: Nottinghamshire Posts: 124 iTrader: (0)	330d low coolant temp, review. Hi everyone, well since having my 330d it's been poor on fuel in my opinion. So checked coolant temp, would barely go above 77c so I realised there is a fault. Obviously the main thermostat is a bit more involved to do. So I found a egr valve thermostat made by mahle! Ordered it and it came at 8 this morning, by 8:50 it was fitted and done! Well just before I got to work it was at 77-78c, well since fitting the new stat it's now up to 80-82c. Not been on a decent drive yet. Might still need a main stat but I'm making progress! While the old stat was off I blow through the stat and it was straight through the stat had not closed so it was definitely faulty. Just thought I would share that info with you, even though its been covered. Dan
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01-12-2013, 07:53 AM	#2
oldbilly Private Drives: 330d e91 M Sport Join Date: Apr 2012 Location: cambridgeshire Posts: 93 iTrader: (1)	for the cost I changed both on mine just to be sure, this will ensure you get the correct temps and benifit from the increased mpg.

01-12-2013, 11:03 PM	#3
Dan-danGT Private First Class Drives: E90 330d M-Sport Join Date: Dec 2012 Location: Nottinghamshire Posts: 124 iTrader: (0)	Don't worry I'm going to do the other one, just wanted to do the quick One first and see what happens. So far an improvement, just need the main stat now

01-13-2013, 03:20 AM	#4
Dr Dave Zummerzet Zyder Drinker! Drives: '06 330D Le Mans Blue Join Date: May 2009 Location: Somerset Posts: 5,481 iTrader: (3) Garage List 2006 330d M Sport [0.00]	The main one isn't that difficult to do. Where did you get your EGR one from?

01-13-2013, 08:01 AM	#5
Dan-danGT Private First Class Drives: E90 330d M-Sport Join Date: Dec 2012 Location: Nottinghamshire Posts: 124 iTrader: (0)	eBay £18.50 plus 3.99 p+p from another country. But it arrived fine and it was a mahle part so decent make.