BMW 3 Owners & Service Manuals

BMW 3: Chain tensioner

Crankshaft drive
Chain tensioner

  1. Tensioning rail
  2. Sealing sleeve
  3. Chain tensioner with screw thread

Due to the cylinder head manufacturing process, the chain tensioner now has a sealing sleeve with a height of 12.5 mm instead of a sealing ring.

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    Concept The system supports the driver in the following situations: When parking parallel to the road, parallel parking. When reverse parking diagonally to the road, diagonal parking. The system orients itself with the middle of the parking space during diagonal parking. When driving out of

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