This 10 channel DSP amplifier can be found in all variants of Audi Q7 from 2006 onwards. It’s easily identifiable as being fitted to the car as the speaker grilles have the ‘Bose’ emblem on them. Each channel has a max 40 watt output, the sub-woofer output rated at 80 watts (4 ohm). The total max output is 360 watts.
There are two variant of this unit – a 2G system and 3G – they are not interchangeable – also the suffix A B C ect. relates to the revision of the unit – notably the later are prone to failure unrelated to water damage ( usually signs of burnt / heated components ) these are still repairable but may often need recoded to the vehicle on return – the circuit boards on these units are a blue colour – early ones are green.
The unit is similar to the Audi TT amplifier with the addition of a fibre optic (MOST) signal input stage ie. sound is transferred to the unit using fibre optic light and not copper wire. The switching on/off function is also controlled by light/fibre – often a common complain is the amplifier not switching off and causing battery drain.
With over 1000 units repaired per year , we are confident of having a 97% success rate.
Check our warning about counterfeit Bose units here.
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These units are ‘paired’ or component protected to the original vehicle – so simply swapping one over will result in only one operation channel .The reason for this is down to Audi protecting the modules of each car – the VIN number of the car is stored in the amplifier module – when the unit is being recoded the VIN number is compared online against a database of blacklisted VIN numbers , coding can not proceed if there is a match,rendering the unit useless.
Coding can only be achieved using VAS or ODIS which is an online system that logs on the the factory system
With many of these cars there is a problem with water ingress – Q7’s 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.
The amplifier usually shows signs of water damage which can be moderate to severe – this causes problems with
Other issues are – complete failure , this is often down to electrical surge which damages the delicate components within the amplifier – on these occasions recoding will be necessary on return.
2006 to 2015 Audi Bose Amplifier
First of all the unit is disassembled and inspected and also electrically tested on our jig. The board is then cleaned of all corrosion and the factory applied protective coating is removed. The board is inspected in closer detail.
We use factory sourced production line components to ensure the sound quality is as precise as a Bose should be.
Finally, once assembled – the unit is check on a fibre optic test bench
Lastly we coat the unit with a hard plastic sealer – we do this to protect the circuit board and modules , this won’t make the unit completely waterproof but it does give the delicate parts excellent protection against water / salt.
We recommend locating and fixing your leak before refitting – warranty will be invalid if the unit suffers further water damage.
Occasionally we see units that are beyond repair , this happens when there is physical signs of the circuit board being burnt … repair is not possible due to safety reasons – the board becomes conductive and will still continue to burn or potentially catch fire.
The rebuilt unit comes with a 12 month extendable warranty – further water damage will invalidate this.
Removal of this unit is quite complex and requires
The unit is located in the rear of the car on the right hand side – Europe and USA
Model numbers are usually located on the underside of the amplifier.
