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11 4 230 Chain tensioner

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Minimum set: Mechanical tools 

Fig 1: Identifying 11 4 230 Chain Tensioner
G03110048Courtesy of BMW OF NORTH AMERICA, INC.
CHAIN TENSIONER SPECIFICATION

Note: For tensioning primary chain when adjusting valve timing
Engine: M52TU, M54, M56, M62, M62VAN, N40, N42
Storage location: A40
SI number: 1 15 99(483)
Order number: 11 4 230 Chain tensioner
Consisting of: 1 = 11 4 231 Nut
Note: With external thread
2 = 11 4 232 Spindle