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EGR and Main Thermostats

Discuss anything to do with the (E83) BMW X3 here
(Older F25 discussion within will ideally to be moved to F25 Sub section below)
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jagr
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Location: Cheshire

EGR and Main Thermostats

Post by jagr » Tue Nov 11, 2014 4:47 pm

I fitted a new EGR thermostat and main thermostat over the last few days as my DPF was failing to regenerate.

My car had no warning lights and the temperature needle was dead on 12 o'clock.

It just felt a little sluggish.

I connected my c110 scanner and had these faults:

Image

From the net I enabled the hidden computer to view my temps and even though the needle was right my car never went above 78c.

I was advised on another site that I should change my thermostats. After getting a ridiculous quote from bmw of £500+ I tried a couple of specialists who quoted £260-£285.
To change thermostats I thought that was excessive so I bought a new egr stat, main stat and 3l of bmw coolant for just under £120 (from bmw).

I then fitted the EGR stat as that was a quick and easy one (15-20 mins) and went for a drive. The car was better as it now reached 79-83c but when heating was on it dropped to around 75c.

Yesterday I tackled the main stat and it was done in under 2 hours and the car now reached 86-89c but my c110 scanner still had the faults with the DPF.

Again another site recommended I drive with the c110 scanner connected and keep resetting the error codes until it forced a regeneration. This took around 30 minutes and now the car is perfect and fuel consumption has definitely improved.

HTH
2011 BMW X3 30d M Sport

mikesmith2939
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Re: EGR and Main Thermostats

Post by mikesmith2939 » Sun Feb 07, 2016 5:58 pm

How easy was it to change the main stat?

Anything to look out for?

Any help appreciated

graemeX5
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Location: Hertfordshire

Re: EGR and Main Thermostats

Post by graemeX5 » Mon Feb 08, 2016 8:06 am

Hi

That a good job done and an amazing result from just changing the stats and has improved the drivability of the car and a big saving  :)

What code reader do you use?
Graeme
Now: E70 X5 in Blue, 3 Minis Cooper S R53, JCW R56 & Cooper S Roadster R59 :drive:

Prev: Abarth 595C & 500C, E53 X5 4.4i, E88 135i M Sport, Audi TT Mk1 V6, 3 Smarts, 8 Vauxhalls, 4 Fords, 2 Triumphs, 1 Mini & Bikes

jagr
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Location: Cheshire

Re: EGR and Main Thermostats

Post by jagr » Mon Feb 08, 2016 8:42 pm

[quote="graemeX5"]
What code reader do you use?
Graeme
[/quote]

The scanner pictured was my C110 which was unfortunately in my boot when the X3 was stolen.

I now have a Carsoft I910 which is very similar
2011 BMW X3 30d M Sport

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