Wrong section for a B6.
However, these wiper motors are notorious for leaking inside the motor housing and shorting out. Mine had actually burnt on the electrics, it had got that hot whilst shorting out.
New motors are around £50/60 on eBay. 2nd Hand and you face a similar risk of it leaking.
The rear trim panel comes off. there are a couple of screws (t25 torx IIRC) and then pull the trim to release the tight clips around the edges to access the motor.