Quote:
Originally Posted by Jorix
There are some plug-and-play tunes (JB4 for example) which you can just take off before taking the car for service and tecnically BMW will never know you tuned your car. It is still risky though, and it is best to wait 12k more miles.
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Yes. The tdi boxes are in line after the ECU and when removed do not show an imprint that they were connected. In the UK we have the 192 bhp engine, not the US 248 bhp version see here...
https://tdi-tuning.com/en-gb/car/bmw...uning-box-chip
I would not sleep easy especially if the was a catastrophic engine problem and were not able to remove the tdi tuning box. It can happen!