ajg617

Weekend finally and I hadn't had a chance to look at it. Today, my wife tells me that the radio hasn't been working for the last 3 days. To translate, that means the screen is black and the control head control backlighting is dead. From what I can tell, some of the individual units work. If I push a CD button it lights up like a champ, blinks for awhile and then shuts down. Going to check the fuses this weekend.

Looking at Bentley, there isn't a bluetooth module for the 06 Avant. Big help. Maybe I'll get lucky and a fuse will be blown. Then again, $7200 in repairs on the three Audis in the last 2 months. So with my luck, the control head is fried

raj99

Are you certain the Bt module isn't under the driver seat 💺? If not, where does it state the module exists in the avant?

Btw I've heard of the control module getting wet and not working, however I was able to price out a local working module at recycler for under $60 and when I researched how to install it, it appeared to be relatively straight forward and is tucked up under/behind the glove box.

The more pressing question will be to address the point of water ingress

life4sk8

I have an 06 avant like yours and my bluethoot module is under the carpet in the driver footwell. I have been to the process of removing all the seats and the carpet twice before figuring the leak was from the roofbar. And I got a fried amplifier from the rear windshield washer hose break. So I did a lot of readind on the mmi and how it is working. So if you have the bluethoot option in your car I am pretty sure it is under your carpet on driver side. But first, if you have a vcds run an optical bus diagnostic. This will provide you some clues about what going on...

hrc4u

yes...bluetooth is there..
get to it and bypass it with optical loop to see if fault is in that module.. =)

"8 - Telephone transmitter and receiver unit -R36-

q In front of front left seat beneath floor covering
"

ajg617

Oops, was looking at the European Avant picture. The US/Canada models show telephone transceiver under the carpet in front of the driver seat. It doesn't specifically call out bluetooth in any of the descriptions.

ajg617

Where can i get an optical loop to bypass it?

hrc4u

well...you could buy from ebay..
audi optical loop | eBay

also ecs have them...
Search SiteSearch 4E0973802 - 4E0973802 - HOUSING - ES#388584

ajg617

Well, fuses are good. Carpeting is dry on both sides. I can see some nodules of water under the inspection plate under driver front seat so I would say it is at least 'humid' in there. Last VCDS I ran shows that none of the components can be reached except for address 19 which shows:
Address 19: CAN Gateway Labels: 4F0-910-468.lbl
Part No SW: 4F0 910 468 A HW: 4F0 907 468 D
Component: Gateway H11 0070
Revision: 11 Serial number: 13008059088141
Coding: ECFE73CD1B7906
Shop #: WSC 02642 444 83466
VCID: 275D0BC4969579190E1-8072

2 Faults Found:
01303 - Telephone Transceiver (R36)
004 - No Signal/Communication
Freeze Frame:
Fault Status: 01100100
Fault Priority: 3
Fault Frequency: 1
Reset counter: 51
Mileage: 159491 km
Time Indication: 0
Date: 2014.12.11
Time: 20:26:58

00384 - Optical Databus
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 5
Fault Frequency: 1
Reset counter: 60
Mileage: 159847 km
Time Indication: 0
Date: 2014.12.16
Time: 15:23:00
With the controls for MMI completely dark, Screen black, NAV dvd tries to eject but fails, and CD ejects but no lights on - I'm not sure where to start. Probably BT because of the above codes.

hrc4u

my choice whould be...check gateway...(under glovebox)...see that MOST cables ok..clean etc..then check telephone module under driver seat....since thats the first/last module before gateway..and gateway is the main "router"....
cheers/H

hrc4u

all modules are connected in series...soo should be be easy to find the bad one using a loop cable...
cheers!/H