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daki50 10-05-2021 11:00 AM

Problem with A/C
I have a BMW e53 3.0d 160kw and I have the following problem with A / C: When I press the A / C button it will not start the air conditioning compressor and fan when the engine is not at 90 degrees (at operating temperature) and until I give more gas once (over 3000 rpm ). Here is the reading from the inpa:

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andrewwynn 10-05-2021 11:04 AM

You have to determine is the AC clutch not engaging or do you have variable displacement compressor and it's stuck at low/no compression until you go to 3000.

Once it kicks on will it operate properly until key off?

daki50 10-05-2021 11:15 AM

Once it starts and works until I turn off the car and it cools down a bit. example: the air conditioning works and I turn off the engine for 5 minutes and start again and it still works without problems because the engine has not cooled down

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daki50 10-05-2021 11:16 AM

but if it stays off for about 15 minutes or more then it won't work and I have to repeat the above (gas over 3000rpm and the engine has to be hot)

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Purplecty 10-05-2021 11:18 AM

Does INPA show any errors in the IHKA unit?

daki50 10-05-2021 11:21 AM

One error

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andrewwynn 10-05-2021 11:26 AM

Don't keep us in suspense. What's the error?

daki50 10-05-2021 11:34 AM


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andrewwynn 10-05-2021 11:41 AM

Aux heater disconnection?

Can you monitor the compressor status? To confirm if the compressor clutch is being engaged when you press the snowflake?

daki50 10-05-2021 11:45 AM

No, what could be the problem with it, the heater maybe?

When I get home I'll try to find it all in INPA

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