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Heater and heated seats stopped working

Discuss your latest mods or ideas, and anything to do with the BMW X5 (E70).
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H4MP
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Heater and heated seats stopped working

Post by H4MP » Sat Dec 03, 2022 10:59 pm

Just got in to car and no the heater not blowing air, also realised heated seats not working for both driver and passenger. The heating will blow air if directed at screen otherwise not blowing through passenger vents. If you could please help with possible cause?

I had the resister and blower motor changed a few months bsck and was working fine.

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Greydog
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Heater and heated seats stopped working

Post by Greydog » Sun Dec 04, 2022 8:00 am

Have you checked the Battery condition ? I remember reading a post where the same symptoms were suffered when temperatures were low a battery test showed a little over 12v after engine start and no Heater Fan but Demist worked Seat lights showed they should be on but no heat.
Battery fully charged and everything back to normal. It would seem that BMW have protection circuits built in to divert power if Voltages drop.

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X5Sport
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Heater and heated seats stopped working

Post by X5Sport » Sun Dec 04, 2022 8:56 am

Low battery will cause ‘load shedding’ until the battery is better charged. It always dumps high power circuits first.

If not then it’s a fuse check (glovebox and right rear cubby).
:ant: Never anthropomorphise computers. They hate that.

H4MP
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Heater and heated seats stopped working

Post by H4MP » Sun Dec 04, 2022 11:15 am

Yes currently my battery is on the low side if I leave ignition on for a short while the battery warning is displayed that makes sense.

H4MP
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Heater and heated seats stopped working

Post by H4MP » Mon Dec 05, 2022 10:05 am

Thanks guys for your prompt reply, you guys are very knowledgeable and helpful.

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lezmtaylor
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Heater and heated seats stopped working

Post by lezmtaylor » Mon Dec 05, 2022 10:51 am

Hey , steady on there !!!!!

Lez

Leslie
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Heater and heated seats stopped working

Post by Leslie » Mon Dec 05, 2022 12:32 pm

Best get it charged up with cold weather due Wednesday or I can forsee your next post from the hard shoulder lol :rofl: (touches wood lol)

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X5Sport
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Heater and heated seats stopped working

Post by X5Sport » Mon Dec 05, 2022 5:34 pm

We got a heads up for heavy snow next week so definitely worth doing, along with winterising screenwash too. The snow I’m sceptical of, but not the screenwash having had to replace both headlight washer trim covers on the E46 after they froze and then pinged off a few years back!
:ant: Never anthropomorphise computers. They hate that.

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