Rear Dome Light

pyoung62 · 05-12-2011, 02:43 PM

Anyone know what the slits are behind the rear dome light? Looks like it could be for a vent or a speaker grill, but of course it's neither. The entire assembly hangs down pretty low so I'm thinking there's something behind there.

Dodo · 05-12-2011, 03:04 PM

Can't find the old thread from back in 2008 right now but I seem to remember it being for the alarm. Back then you could buy it as a dealer installed option and retrofit it.

I think someone did a DIY, and the microphones for glass breakage went there.

If you don't have the factory alarm it is probably vestigial, like the 'clown nose' on our mirrors.

1ToBeOn2Wheels · 05-15-2011, 04:12 AM

If I recall correctly, Dodo is correct. It is a proximity sensor for the interior for the OEM alarm. If you don't have the alarm installed, then it's probably just empty inside.

05-12-2011, 02:43 PM	#1
pyoung62 New Member 2 Rep 7 Posts Drives: 135i Join Date: Mar 2011 Location: Apex, NC iTrader: (0)	Rear Dome Light Anyone know what the slits are behind the rear dome light? Looks like it could be for a vent or a speaker grill, but of course it's neither. The entire assembly hangs down pretty low so I'm thinking there's something behind there.
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05-12-2011, 03:04 PM	#2
Dodo Extinct 11 Rep 81 Posts Drives: Slow Join Date: Mar 2008 Location: SC iTrader: (0)	Can't find the old thread from back in 2008 right now but I seem to remember it being for the alarm. Back then you could buy it as a dealer installed option and retrofit it. I think someone did a DIY, and the microphones for glass breakage went there. If you don't have the factory alarm it is probably vestigial, like the 'clown nose' on our mirrors.
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05-15-2011, 04:12 AM	#3
1ToBeOn2Wheels Freude am Fahren 32 Rep 703 Posts Drives: B9 Audi S5 Coupe Join Date: Oct 2007 Location: Sierra Nevada Foothills, California iTrader: (0)	If I recall correctly, Dodo is correct. It is a proximity sensor for the interior for the OEM alarm. If you don't have the alarm installed, then it's probably just empty inside.
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