Bimmerfest - BMW Forums - View Single Post - Uh oh! Drivetrain malfunction on Dinan Stage 2 550xii :(
View Single Post
Old 08-18-2012, 08:59 AM
sdg1871 sdg1871 is offline
Officially Welcomed to the 'Fest
Location: New York, NY
Join Date: Mar 2009
Posts: 947
Mein Auto: 2012 Dinan Stage 2 550xi
Originally Posted by dave70 View Post
Good luck - hope that the problem is solved. Word of caution however - BMW initially replaced my injectors and the problem persisted. They subsequently replaced the fuel pump. I was told it has nothing to do with the software.
They tested the fuel pump and claim that it's output was normal. I would guess that the Dinan tune has the entire engine working harder than normal. I forget how blindingly fast the car was until I got back in
2012 Dinan Stage 2 550i xDrive M Sport, Imperial Blue Metallic, Cinnamon Brown Leather and Light Wood Trim. Major options are M Sport package, cold weather package, sport automatic transmission, active roll stabilization, premium sound, and side and top view cameras.

Dearly departed BMWs: 2009 550i M Sport in Carbon Black Metallic and 2003 540i M Sport in Titanium Silver
Reply With Quote