Bimmerfest - BMW Forums - View Single Post - RPM Fluctuation Shifting into Drive/Reverse
View Single Post
Old 12-11-2012, 06:40 AM
Pinecone's Avatar
Pinecone Pinecone is offline
M Mad
Location: Maryland
Join Date: Apr 2002
Posts: 10,479
Mein Auto: M Roadster/M3
When you shift into gear, you are applying a load to the engine. So the idle speed drops. THe ECU sees this and adjusts, causing the ilde speed to come up.
Terry Carraway

'95 Alpine M3 LTW
'00 Dakar M Roadster
'02 Topaz M3
Red/White SRF #4 (Chassis 561)
Reply With Quote