We have been specialising in servicing these units since 2008 with over 3500 units repaired to date.

What fails and why

With many of these cars there is a problem with water ingress. On the Q7 this is due to with the panoramic roof have issues with the roof drain blocking or splitting , also the sunroof assembly splits in the rear corner allowing water to enter the car - straight on top of the amplifier .

The amplifier usually shows signs of water damage which can be moderate to severe this causes problems with :-

No sound
Draining battery
No mmi screen
Random component protect
Loss of channels
Complete failure - this is often down to electrical surge which damages the delicate components within the amplifier - occasionally this may result in recoding being neccessary . If you are unsure - please send images of board and we can advise before sending.

Repair

We carry stock of ALL parts required to rebuild these units - the data is never changed by repair so therefore the units are plug and play on return - there is NO need to have the units re-coded on return .

Counterfeit / Replacement Boards

There is now a growing number of counterfeit boards circulating on eBay - please bear in mind that these units are a very poor quality replica - and WILL need coded on fitting regardless and the ' one model fits all ' listing is completely untrue - there are many model numbers / variants taylored for your vehicle .

 We are now receiving them for repair on a regular basis ... on failure , most of them are completely scrap.

Removal

The unit is located at the rear of the car on the right hand side - pretty much all the trim has to be removed to gain access . the amplifier is mounted to a bracket/frame (please remove this - it will make the packaging smaller).

We now cover all models of Q7 amplifier units 

4L0 035 223 A

4L0 035 223 C

4L0 035 223 D

4L0 035 223 E

4L0 035 223 F

4L0 035 223 G

4l0 035 223 J

Other models - please enquire.

We have been specialising in servicing these units since 2008 with over 3500 units repaired to date.

What fails and why

With many of these cars there is a problem with water ingress. On the Q7 this is due to with the panoramic roof have issues with the roof drain blocking or splitting , also the sunroof assembly splits in the rear corner allowing water to enter the car - straight on top of the amplifier .

The amplifier usually shows signs of water damage which can be moderate to severe this causes problems with :-

No sound
Draining battery
No mmi screen
Random component protect
Loss of channels
Complete failure - this is often down to electrical surge which damages the delicate components within the amplifier - occasionally this may result in recoding being neccessary . If you are unsure - please send images of board and we can advise before sending.

Repair

We carry stock of ALL parts required to rebuild these units - the data is never changed by repair so therefore the units are plug and play on return - there is NO need to have the units re-coded on return .

Counterfeit / Replacement Boards

There is now a growing number of counterfeit boards circulating on eBay - please bear in mind that these units are a very poor quality replica - and WILL need coded on fitting regardless and the ' one model fits all ' listing is completely untrue - there are many model numbers / variants taylored for your vehicle .

 We are now receiving them for repair on a regular basis ... on failure , most of them are completely scrap.

Removal

The unit is located at the rear of the car on the right hand side - pretty much all the trim has to be removed to gain access . the amplifier is mounted to a bracket/frame (please remove this - it will make the packaging smaller).

We now cover all models of Q7 amplifier units 

4L0 035 223 A

4L0 035 223 C

4L0 035 223 D

4L0 035 223 E

4L0 035 223 F

4L0 035 223 G

4l0 035 223 J

Other models - please enquire.