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Overcooling question

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Owdgit
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Overcooling question

Post by Owdgit » Wed May 10, 2023 2:27 pm

That's why I got bimmerlink so I can use it away from home etc.
I like to think I'm an optimist.

2010 Grey Z4 E89 N52 3.0 with stuff
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2020 KTM 1290 Superduke GT

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Owdgit
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Overcooling question

Post by Owdgit » Wed May 10, 2023 7:04 pm

It looks like it could indeed be the cooling fan.
I decided to check the water pump was working ok and it's pumping nice and freely with a consistent stream.
Had a general nose around the fan and spotted that there was no cover over the electronics on the back of the fan, looking a bit further, the cover was lying at the bottom of the engine next to the flywheel pulley! Goodness knows how that's happened, think I'll replace the fan first of all.
See image below, weird.
Hopefully that will be the fix? Just need to work out how to remove the fan housing now :)
20230510_185333_resized.jpg
20230510_185333_resized.jpg (166.07 KiB) Viewed 308 times
I like to think I'm an optimist.

2010 Grey Z4 E89 N52 3.0 with stuff
2018 VW Arteon 2.0tsi daily workhorse
2020 KTM 1290 Superduke GT

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smorris_12
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Overcooling question

Post by smorris_12 » Wed May 10, 2023 9:57 pm

Ah. When I mentioned the water pump earlier I meant that it's the same setup as the fan rather than being the cause of the problem. The water pump will throw its own codes when it starts dying.
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Overcooling question

Post by B21 » Thu May 11, 2023 8:51 am

43% Autodoc day :thumbsup:
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard..

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Overcooling question

Post by smorris_12 » Thu May 11, 2023 9:17 am

Dammit. I was within 4 days of the full 30-day bonus yesterday and forgot to click through. Second time I've got that close.
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2006 Z4 2.5si Silbergrau und rot

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Overcooling question

Post by Owdgit » Thu May 11, 2023 9:51 am

Yes, spotted it thanks.
I've ordered the fan and the coolant temp sensor JIC.
They recommended the Abakus one as the OE replacement, also ordered the Febi coolant sensor, £197 in total, a lot cheaper than the Eurocarparts £420 for the fan!
I like to think I'm an optimist.

2010 Grey Z4 E89 N52 3.0 with stuff
2018 VW Arteon 2.0tsi daily workhorse
2020 KTM 1290 Superduke GT

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Overcooling question

Post by mcbutler » Thu May 11, 2023 2:24 pm

Owdgit wrote: Wed May 10, 2023 1:32 pm Thanks Peter, do you think there is any value in trying any different diagnostic software to drill down into the actual cause of the fault?
Not that I have any different software, just bimmerlink.
Just take it to a dealer, they can deep dive the code for you for a less than buying INSTA for example and they know how to use it correctly (not including BMW main stealers in that statement lol). Itll take a short time and the answer will be in your hand as well as some advice for free I am sure... Bite the Bullet
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Overcooling question

Post by mcbutler » Thu May 11, 2023 2:27 pm

Owdgit wrote: Wed May 10, 2023 7:04 pm It looks like it could indeed be the cooling fan.
I decided to check the water pump was working ok and it's pumping nice and freely with a consistent stream.
Had a general nose around the fan and spotted that there was no cover over the electronics on the back of the fan, looking a bit further, the cover was lying at the bottom of the engine next to the flywheel pulley! Goodness knows how that's happened, think I'll replace the fan first of all.
See image below, weird.
Hopefully that will be the fix? Just need to work out how to remove the fan housing now :)

20230510_185333_resized.jpg
That cover has a rub mark on it as though the belt has touched it. Might be worth checking the belt is ok as well, it may have been damaged by the cover or it may have a piece hanging off that has 'whipped' the cover off...
Mark
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Black leather

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Owdgit
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Overcooling question

Post by Owdgit » Thu May 11, 2023 4:48 pm

Thanks Mark, the belt is all good, I've thoroughly checked it.
The mark is where it was against the bottom pulley, it actually looks worse on the image than it is, it's only slight.
I'm thinking the cover has come unbonded when the fan has been running full pelt for some time and it's got hot enough to loosen the bonding material causing it to fall off.
I've already ordered the replacement fan and a temp switch.
Once back together I'll see how it goes.
This is how the removed fan looks
20230511_163307_resized.jpg
20230511_163307_resized.jpg (146.82 KiB) Viewed 224 times
I like to think I'm an optimist.

2010 Grey Z4 E89 N52 3.0 with stuff
2018 VW Arteon 2.0tsi daily workhorse
2020 KTM 1290 Superduke GT

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Owdgit
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Overcooling question

Post by Owdgit » Thu May 18, 2023 2:18 pm

New fan & temp switch fitted, errors cleared and no longer appear, just need to get it out on the road to try it now.
I like to think I'm an optimist.

2010 Grey Z4 E89 N52 3.0 with stuff
2018 VW Arteon 2.0tsi daily workhorse
2020 KTM 1290 Superduke GT

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Overcooling question

Post by B21 » Thu May 18, 2023 4:30 pm

Owdgit wrote: Thu May 18, 2023 2:18 pm New fan & temp switch fitted, errors cleared and no longer appear, just need to get it out on the road to try it now.
Splendid :thumbsup:
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard..

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