Hi guys,
just to update i just replaced the part myself and car drives and breaks fine now.... this is easy and quick....no expert knowledge required. all the fault codes are now gone...
This is really easy DIY - only took 5 mins and flat head small screwdriver to unlock the two plastic locks and either side of the sensor attachment. Need little care when unlocking the latches.
The part number is as below.... according to Audi there are some updates to the part numbers.
The original part no 5Q 0906207 replaced by 5Q 0906207A and the latest number is 5Q 0906207B which I bought and used.
most of the Audi models this part is universal.... irrespective of the model. mine is Q7 - 2017 model.
hope this helps and save money for you.