I'm looking at putting my spare wheel on the rear door of my S3 109, are the original hinges on them up to the job or does anyone use or know if stronger ones are available, I've read quite a few articles with mixed advice.
Even with an extra hinge, I don't think the frame of the door is strong enough in the long term. The best solution is a swing away carrier which cost over £400 if memory serves me correctly.
I took mine off the door and moved it to the bonnet as the door was struggling. A number of people have modified swing away carriers they got cheap off e-bay to fit. Some look very neat.