BMW 3: Chain tensioner

Chain tensioner
- Tensioning rail
- Sealing sleeve
- 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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VANOS
VANOS unit B46 engine and B46TU/B48TU engines
VANOS B46 engine
VANOS B46TU and B48TU engine
Following the changeover from a two-part chain drive to a single-part chain
drive, the camshaft
Comparison belt drive B46 engine and B46TU/B48TU engines
B46 Engine (transverse installation shown)
B46TU/B48TU engines (transverse installation shown)
Deflecting element
Alternator
Coolant p
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General information
Depending on the national-market version, the
destinations are automatically stored as received
destination and can be applied in the destination
guidance, if they were transferred to the vehicle
via the BMW Connected app.
For example, destinations that were sent from
the Concie
Concept
The shift lights indicate the upshift point at which
the best possible acceleration can be achieved.
Functional requirement
Shift lights are shown when the SPORT or
SPORT PLUS driving program is activated.
Switching on/off
Steptronic Sport transmission:
1. Select SPORT or SPORT PLUS driving