3.0d temp gauge

mattyp · Post by **mattyp** » Sat Nov 21, 2015 6:25 pm

My temp gauge reed just under the quarter mark on the gauge. Is this normal for a 3.0d?

X5Sport · Post by **X5Sport** » Sat Nov 21, 2015 6:33 pm

No. Thermostat is stuck open.

mattyp · Post by **mattyp** » Sat Nov 21, 2015 6:42 pm

thanks is this a common fault with them?

Entwicklung34 · Post by **Entwicklung34** » Sat Nov 21, 2015 6:57 pm

Got this on mine, but moves between 1/4 mark and just under 1/2 mark depending on conditions... Think mine needs changin too. (Normal is 1/2 way mark once up to optimum temp on any car i've ever owned)

X5Sport · Post by **X5Sport** » Sat Nov 21, 2015 7:19 pm

Very common as the cars age. Might be guidance about changing them on the forum.

andym3 · Post by **andym3** » Sun Nov 22, 2015 6:27 pm

When the weather is as cold as it is my temp gauge sits just over the 1/4, in summer closer to 1/2!
If I had a problem with my thermostat wouldn't the heater not work? :-[

Horizon · Post by **Horizon** » Sun Nov 22, 2015 6:34 pm

Sounds like the thermostat to me, it should reach and stay at the 1/2 way mark whatever the weather after a good run, may take longer to warm up though.

andym3 · Post by **andym3** » Sun Nov 22, 2015 6:43 pm

I have no issues and the heater is warm after about 5mins of driving!

X5Sport · Post by **X5Sport** » Sun Nov 22, 2015 7:18 pm

Different pumped and controlled circuits and the heater air runs at a lower temperature - well below coolant temp. The idea of the stat is that the temp gauge doesn't move regardless of the air temp - whether hot or cold. My E53 stayed centred all the time frosty or baking.

Horizon · Post by **Horizon** » Sun Nov 22, 2015 7:51 pm

[quote="andym3"]
When the weather is as cold as it is my temp gauge sits just over the 1/4, in summer closer to 1/2!
If I had a problem with my thermostat wouldn't the heater not work? :-[
[/quote]
Look up hidden menu, this can give you the coolant temperature . The BMW gauge will stay central usually between 95 - 110 degrees, the hidden menu will give you accurate coolant temperature.
I think guessing from my poor memory thermostats tend to hold 95 / 97 degrees.
I suspected mine on the 3 er was stuck open, but it's just taking a lot longer to get up there but always settles at 97 degs C

mattyp · Post by **mattyp** » Tue Nov 24, 2015 8:42 pm

I have ordered a new thermostat, going to fit it at the weekend. What is the best way yo bleed the system ?

Entwicklung34 · Post by **Entwicklung34** » Wed Nov 25, 2015 10:20 pm

Are you planning on changing out the water pump or coolant while you're there mate?

I think i'm going to need to do mine at some point too, so let us know how things go...

mattyp · Post by **mattyp** » Thu Nov 26, 2015 7:20 pm

Just the stat and coolant

mattyp · Post by **mattyp** » Sat Nov 28, 2015 7:20 am

Changed the stat and put new coolant in, it's a bit tight for space changing it. Now the gauge sits at halfway now

mikem · Post by **mikem** » Sat Nov 28, 2015 8:11 am

Matty, can you tell us what the OBC hidden reading is with a new stat ?

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3.0d temp gauge

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