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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     In the vicinity of the steering wheel

    Safety switch Power windows Exterior mirror operation Central locking system Unlocking Locking Seating comfort features Memory function Lights Front fog lights Light switch Lights off Daytime running lights Parking lights Automatic headlight control Adaptive light functions

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