[redlightning]

Anyone know if the M274 compensates for high altitude driving by increasing the available turbo boost? I haven't had the chance to drive over the mountains yet. My Audi A4 1.8T would only run 9 psi at sea level and raise that up to ~15 around 11,000 ft with factory programming.

 

[kosta15auto]

If the AUDI does I don't believe Mercedes will fall that much behind.

 

[redlightning]

I hope it does. I was assuming the VW software would be similar to my old Audi, but my 2.0 TDI is kind of a turd at high altitude compared to down in town.

 

[Greenmanedlion]

A turbo automatically compensates for altitude as a nature of its design. It doesn't increase boost, 9psi is 9psi, irrespective of altitude.