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SiegKranz

Air conditioning in the 2015 BMW X6 Diesel not working properly: Possible defect in the ambient temperature sensor

Hi everyone, I have a problem with my 2015 BWM X6 Diesel (mileage approx. 125,000 km). My air conditioning system is only blowing warm air and virtually no cooling/heating. I suspect this is due to a faulty signal from the ambient temperature sensor. Have any of you had similar problems? What was your experience with the mechanic? I would really appreciate your advice, I haven't had much luck with my garage so far. Thanks in advance!

(Translated from German)

Summary of the thread

The air conditioning system in a 2015 BMW X6 Diesel is only blowing warm air, suspected to be due to a faulty ambient temperature sensor. Another BMW owner experienced a similar issue, but the cause was a clogged coolant circuit, which required cleaning and coolant replacement. Another suggestion was that the air temperature sensor might be unplugged. Other potential issues could be low refrigerant levels or a problem with the AC compressor clutch. The advice given was to have the vehicle inspected by a professional mechanic.

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10 comment(s)

BenjiKlein

Hey, I recently had a similar problem with my 2018 BMW X3 Diesel. My car suddenly only gave me hot air, similar to yours. But in my case, the problem wasn't the ambient temperature sensor. It was actually my car's coolant circuit that was clogged. The guys at the garage had to clean it out completely and replace the coolant. So, maybe it's something similar with your car? It was already a serious problem and took some time in the workshop. I would definitely recommend getting it checked as soon as possible. Hope that helps!

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SiegKranz (community.author)

Hey, thanks for the tip, I'll definitely check the coolant circuit! How much did the repair cost you in the end, if you don't mind me asking? Oh, and have you encountered any other problems since then? Thanks again for your help!

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BenjiKlein

Hey, you're welcome! The repair of the temperature sensor cost me around €240. Since I've been to the mechanic, the faulty signal from the ambient temperature sensor has been rectified. So no more problems so far! Hope this helps you!

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SiegKranz (community.author)

Great, thanks for the info! 240 is really fair. That gives me a good indication of the likely costs. I'm really glad you haven't had any more problems since then. I'll take your advice and get it to a mechanic as soon as possible. Thanks again for your help!

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Sonnywonny

Air temp sensor was unplugged

Abdulrauf

I have some problem with my airbag and abs light its not going away after then changing my clock's friend it's still showing that light on a dash and my car is bogging down so much also

CarlyMechanic

community_quotation:

community_author_wrote_on

I have some problem with my airbag and abs light its not going away after then changing my clock's friend it's still showing that light on a dash and my car is bogging down so much also

It sounds like you have a couple of different issues going on. For the airbag and ABS light, it could be a faulty sensor or a problem with the wiring. As for your car bogging down, it could be due to a variety of reasons such as a clogged fuel filter, dirty air filter, or a problem with the spark plugs. However, both issues are safety-relevant and should be checked by a professional mechanic as soon as possible.

Devrim

Why no turkish language

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Coppo

I have the same problem but it’s instead it blows hot air before & after driving about 30-40 min within then hear the compressor kick in to start cooling and I had the problem after I change the ambient temp sensor

CarlyMechanic

community_quotation:

community_author_wrote_on

I have the same problem but it’s instead it blows hot air before & after driving about 30-40 min within then hear the compressor kick in to start cooling and I had the problem after I change the ambient temp sensor

It sounds like your AC system might be low on refrigerant or there could be an issue with the AC compressor clutch. A low refrigerant level can cause the AC to blow warm air until the system has run for a while and the refrigerant has had a chance to circulate. If the clutch on the compressor is failing, it may not engage properly causing a delay in cooling. I'd recommend having your AC system inspected by a professional mechanic. Please keep us updated on your progress.

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BMW

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X6