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Aircon- advice and INPA

Discuss problems you have had or are having with your Z4
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bigwinn
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Post by bigwinn » Fri Jun 04, 2021 10:16 pm

Hi all

Still struggling with aircon temperature

So far- it’s been regassed, I’ve checked the clutch spinning: it does when switched on and not when off

I’m going to connect INPA etc tomorrow- can anyone give me tips of what to look for/check?

Cheers

Stuart
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Post by bigwinn » Sat Jun 05, 2021 2:33 pm

Right scanned it with inpa today

Anyone spot anything bleeding obvious?

The auc error I’m guessing won’t affect the aircon?
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6955BB01-D173-4833-803C-C91851503163.jpeg (185.53 KiB) Viewed 497 times
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Post by enuff_zed » Sat Jun 05, 2021 4:55 pm

Only error I can see is those sandals mate !!!!
Just thankful you had your legs crossed tbh.
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Post by bigwinn » Sat Jun 05, 2021 7:06 pm

Nearly had an Alan partridge ‘I’ve popped out’ moment
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Post by bigwinn » Sun Jun 06, 2021 1:51 pm

Afternoon bump
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Post by Rockhopper » Sun Jun 06, 2021 2:38 pm

Does that radiator fan spin up when you turn the AC on?

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Post by bigwinn » Sun Jun 06, 2021 4:36 pm

Rockhopper wrote: Sun Jun 06, 2021 2:38 pm Does that radiator fan spin up when you turn the AC on?
I’ll check

I don’t think so- but I can activate the fan via inpa?
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Post by bigwinn » Sun Jun 06, 2021 7:16 pm

Rockhopper wrote: Sun Jun 06, 2021 2:38 pm Does that radiator fan spin up when you turn the AC on?
No fan spin up on start of car

No codes showing as errors

I’m able to run the fan from inpa at the set percentages
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Post by Rockhopper » Sun Jun 06, 2021 10:39 pm

Does the rad fan come on when the car gets hot? I think the AC won’t work if the fan won’t work if that makes sense.

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Post by bigwinn » Sun Jun 06, 2021 10:47 pm

Rockhopper wrote: Sun Jun 06, 2021 10:39 pm Does the rad fan come on when the car gets hot? I think the AC won’t work if the fan won’t work if that makes sense.
Yeah I think it does- I will check the green wire tomorrow
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Post by bigwinn » Sat Jun 12, 2021 9:51 pm

Hi all

Going to have another crack at this tomorrow

Got multimeter ready to start to check voltages across compressor, dryer and relay

Any other pointers for me to look at- will fire up inpa again

Cheers in advance

Stuart
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Post by bigwinn » Sat Jun 12, 2021 9:51 pm

bigwinn wrote: Sun Jun 06, 2021 10:47 pm
Rockhopper wrote: Sun Jun 06, 2021 10:39 pm Does the rad fan come on when the car gets hot? I think the AC won’t work if the fan won’t work if that makes sense.
Yeah I think it does- I will check the green wire tomorrow
All checked all ok
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Post by Zulu4 » Sun Jun 13, 2021 9:09 am

bigwinn wrote: Sun Jun 06, 2021 7:16 pm
Rockhopper wrote: Sun Jun 06, 2021 2:38 pm Does that radiator fan spin up when you turn the AC on?
No fan spin up on start of car

No codes showing as errors

I’m able to run the fan from inpa at the set percentages
My fan spins up immediately on a cold engine if I select the AC on (facelift car).
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Post by bigwinn » Sun Jun 13, 2021 9:52 am

Zulu4 wrote: Sun Jun 13, 2021 9:09 am
bigwinn wrote: Sun Jun 06, 2021 7:16 pm
Rockhopper wrote: Sun Jun 06, 2021 2:38 pm Does that radiator fan spin up when you turn the AC on?
No fan spin up on start of car

No codes showing as errors

I’m able to run the fan from inpa at the set percentages
My fan spins up immediately on a cold engine if I select the AC on (facelift car).
I’ll deffo do some checks on that area today- both my pre facelifts haven’t done that- and aircon on last car was good
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Post by enuff_zed » Sun Jun 13, 2021 10:40 am

Hi bigwinn,
I know you're not exactly a novice, so feel free to disregard this but.........
Are you 100% sure the system is properly re-gassed? Not leaking straight back out again?
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