Any one can buy a flash tool find a supply of maps and flash a file to an ecu, (my 10 year old daughter has done it a few times.) once they flash a file and the car starts this brand themself as TUNERS but as soon as a flash goes worng and a car wont start and there remapping tools wont recover the ecu.. what next?? There are a handful of tuners in the Uk who have not jumped on the remap flash badwagon and who have chip tuning skills, who are fixing many fecked ecu from these so called tuners, I have never killed one ecu in 12 years, and not one car did not go away as a non running. A true Tuner will have the skills to produce a map from scratch, edit a map to make the most of the mods on a car, they should know the limits of the car and the mapping, and be 100% confident in what they are doing and if a ecu fecks up they have the skill to fix it there and then. Thats why I have 100% good feedback. Thats why most people come me for a remap, they know they get a job done right, the car will start. You see new tuners crop up, with no skills, no mechanical background not understanding on how to tune cams, carbs or dizzy car,, just read on google you will see them come and go within 12months.
As for the first post and remapping with a KWP2000 tool then yes is will do the me7 512k and 1mb ecus with easy, I know the guy well who produced the genuine kwp2000 before it go cloned to feck, He even produced an add one for the kwp2000 which alsos to read and write the me7 1.8t ecus. If I was you and your car is a 1.8T I would go for it, write a map , if it goes wrong you can always send me the ecu to fix. You can send me your read file and I will write you a basic stage 1 remap unique to you.