Mini Cooper "S" Engine Noise - Rattle. MINI Cooper "S" Timing Chain Rattle Noise follow this link: http://www.promini.com/technical/cooper_r56_death_rattle.php
Vehicles affected: Mini Cooper "S" R55, R56 all models with the N14 engine produced between 2006 to May 4th 2009.
Symptom: Early symptoms of chain tensioner failure on the R56, R55 is a slight rattling sound from the passenger side of the engine valve cover, even with engine running but not driven. The rattle sound will increase with speed, but go away when the engine reaches approximately 1800 R.P.M. The sound will return when the engine returns to lower R.P.M.s during deceleration or idle. In early stages this sound may be more pronounced at colder temperatures, but in more severe cases the sound and vibration will be heard at all temperatures.
Mini Technical Service Bulletin SI M 11 02 07
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