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      12-03-2019, 12:09 AM   #145
auditorycanvas
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Drives: BMW Z4 M40i (2022)
Join Date: Aug 2019
Location: SoCal

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Quote:
Originally Posted by ZedsRedBaby View Post
I've worked out that the clicking noise from behind me is definitely electrical relays - the sound occurs when I switch the rear window heater on or off.

What I can't understand is why the same sound happens at random times, mostly when the car is stationary.
There's a few electronic units behind the seats sandwiched between the two back panels, bolted to the sub housings. Here's a photo of them:



Here's the details and description of the modules:
https://g29.bimmerpost.com/forums/at...4&d=1569377335
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