Annoying electrical fault

Jetjock767 · 04-16-2023, 01:16 PM

My M4 has an annoying fault that comes on after about 30 mins .

It begins with bringing up the lighting fault which then goes away for a few mins and then returns . The rear turn signals then stop working with the fronts flashing at twice the speed . Then i get an SOS call fault shown then the entertainment screen blanks followed by the air con system switching off .

This continues until the car is turned off and cooled down .

The car has been to the main dealer but they just change stuff at ridiculous cost to myself .

Anyone got any ideas ? Could it be a module that connected to the indicators (tun signal) . entertainment screen, SOS call and air con ?

Thanks

Blocke · 04-16-2023, 09:21 PM

Have you pulled the codes?

AGSAUTO · 12-28-2023, 09:59 AM

Im having a similar issue.

intermittently will experience

Light system failure

I drive on and off

AC controls on and off

SOS

Parking system failure

Always starts with indicators flashing fast and when it faults the rear left indicator will not flash.
Did you ever find the problem ?

04-16-2023, 01:16 PM	#1
Jetjock767 Registered 0 Rep 2 Posts Drives: BMW M4 Join Date: Apr 2023 Location: UK iTrader: (0)	Annoying electrical fault My M4 has an annoying fault that comes on after about 30 mins . It begins with bringing up the lighting fault which then goes away for a few mins and then returns . The rear turn signals then stop working with the fronts flashing at twice the speed . Then i get an SOS call fault shown then the entertainment screen blanks followed by the air con system switching off . This continues until the car is turned off and cooled down . The car has been to the main dealer but they just change stuff at ridiculous cost to myself . Anyone got any ideas ? Could it be a module that connected to the indicators (tun signal) . entertainment screen, SOS call and air con ? Thanks
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04-16-2023, 09:21 PM	#2
Blocke First Lieutenant 317 Rep 352 Posts Drives: 2015 AY M3 Join Date: Jan 2018 Location: Temecula, Ca iTrader: (0)	Have you pulled the codes?
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12-28-2023, 09:59 AM	#3
AGSAUTO Registered 0 Rep 1 Posts Drives: bmw m4 Join Date: Dec 2023 Location: uk iTrader: (0)	Im having a similar issue. intermittently will experience Light system failure I drive on and off AC controls on and off SOS Parking system failure Always starts with indicators flashing fast and when it faults the rear left indicator will not flash. Did you ever find the problem ?
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