Bimmerfest - BMW Forums - View Single Post - 550i Red-line Tolerance
View Single Post
Old 12-04-2012, 08:12 PM
MRV99 MRV99 is offline
Officially Welcomed to the 'Fest
Location: Chicago
Join Date: May 2007
Posts: 1,118
Mein Auto: 2011 M3 DCT
It will not harm your engine. Since it is an auto and the fuel cut off, you can't over rev it that will cause damage. Actually red lining (technically yellow line) is good for the BMW engines. These motors were not designed to slog around in low RPM's. When you run high RPM's, it helps clean out your oil passages. Overly long 15k oil change intervals do more harm than redlining your car. I had a 545 which saw redlines every time I merged onto the highways and I had 75k with no engine leaks or issues.
12 X5 50i Sport
11 M3 DCT
11 X5 50i (lemon)
-- SOLD --
08 550i M-Sport
04 BMW 545I sport
07 BMW X5 4.8I sport
02 BMW X5 4.4i sport
01 BMW 540I M/sport
00 SL500
97 SL500
Reply With Quote