I have been driving an Audi for 10 years now and really do like the build and reliability so when it came to car change time I picked up another Audi A4 but this time I have gone for my first Tdi, apart from it driving completely differently im not sure im getting the power I should be so I have a few questions ... 1 How do I know weather I am getting what I should be ? 2 What improvements can I make without major surgery ? 3 Will a remap affect engine life span ? 4 Will Audi see the a remap when it goes in for a service ? 5 Are any of the things that are done as part of a remap ie DPF Delete etc an MOT requirement ?