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Mmi not working
Passenger door not working
flashing parking brake malfuncfion

the whole BROWN carrier section isn’t getting power

 

Tell us what year & model we're looking at, and we'll go from there.

In general, Fuse Carrier ST3 (brown) of Fuse Panel F is unswitched, and gets powered directly from Fuse Panel A (starter battery positive teminal) through 110 A Fuse 1. --g

 

Tell us what year & model we're looking at, and we'll go from there. In general, Fuse Carrier ST3 (brown) of Fuse Panel F is unswitched, and gets powered directly from Fuse Panel A (starter battery positive teminal) through 110 A Fuse 1. --g

I have 2012 a6 quattro. Mmi screen black no power to buttons. I replaced tge broken power and earth wires but still nothing???

 

2008 Audi S5

 

Fuse panel A? 110A to fuse 1?

Where should I look to find fuel panel A or fuse 1?

 

For which market is your 2008 S5? In the North America, 2008 models were still B7-based; ROW (including Europe), 2008 was the first year for B8 models. Your Fuse Panel F (right rear luggage compartment) looks like early B8.

Assuming yours is a B8 platform, Fuse Panel A is the assembly attached to the starter battery positive terminal (under the spare tire/wheel in the trunk).

Fuse 1 here powers other things, like Fuse Panel F Carrier 2 (black) and J807 (12V sockets relay). If your 12V sockets all work, the problem is not likely with 110A Fuse 1. --g

 

12V sockets inside car both work and I can charge my phone with it but let me inspect it and report back

 

Inspected looks clean but I do have a pyro fuse that I’m reusing after a car accident I opened it up and made contact and reused it. I got a new pyro fuse gonna install it and see if any changes

 

 

Power to the rear fuse panels is not affected by Battery interrupt igniter N253 in this wiring diagram:

The black cable on the lower right of your picture feeds Battery jump start terminal U6 in the engine compartment.

Fuse 1 is the link closest to the starter battery that feeds the red cables; one of those red cables should go to Fuse Panel F Fuse Carrier 3 (which is unswitched Terminal 30 power). --g

 

Where is fuse (1) ?

 

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video shows exactly what I’m talking about I already took that plastic panel off holding F and flipped it upside down, the connector is In and fully seaded.. short of pulling that middle brown section off and checking the power pin individually I figured some relay or something else is triggering this no power to be sent

theirs no sign of water damage at all

if no power is being sent to those fuses then of course my mmi and other things wouldn’t work like my passenger door and rear view camera I scanned on vcds and did optical loop test all came up ERROR, will update vcds scan but clearly the fuses are the issue

 

The wiring diagram tells us that one of the two red cables in your picture goes to splice (B272) in the wiring harness; from there, one wire goes to Fuse Carrier 3 (brown), the other to the rear window defroster 40A fuse S41 (H in the diagram).

If you don't find any power on the hot side of the brown fuse carrier ST3, it's because it's being interrupted in the wire harness between Fuse Panel A and the brown fuse carrier, possible at B272. --g

 

DrGer what’s your cashapp?

I got it brother

 

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* UPDATE FIXED REAR TRUNK PRONE TO WATER CORROSION ON cables *