Is there any way of telling of the mod has been carried out or not?
When I take my car to the local VW garage for service and MOT next month, I'll ask then NOT to do the mod.
But I only get to speak to the girl at reception.
What actually goes on in the work shop with the technicians with spanners and now OBDII interface is another matter.
I've got a feeling they will mod it anyway because it is what they "need" to do.
It may even be an automatic procedure that happens as soon as they plug in their equipment.
How can I tell if it is modded or not?
And yes, I will be paying attention to the performance and mpg if I find out they have modded it.
May be it is best not to take it to the VW garage!
I think my MK6, 2.0TDI140 just has a s/w mod, and no h/w required.
Now if they were to offer the mod + free little re-map giving +10BHP then I'd think about it!