BMW 3: Chain tensioner
BMW 3 Series G20 (2018-2026) Training manual / B46TU-B48TU Engines / Engine Mechanical / 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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Valve gear
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
Belt drive
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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Assistance functions
General information
More than one assistance function can be active
at the same time.
The following assistance functions can be manually
activated:
"Parking aid lines".
"Obstacle mark.".
"Car wash".
The following assistance functions are automatically
displayed:
Side protection.
Door openin
Automatic climate control - switching on/off
Switching on
Press any button except for the following:
Switching off.
Rear window defroster.
Lower air flow button side.
Seat heating.
Switching off
Complete system:
Press the button until the
control panel
switches off.
Temperature
Concept
The automatic climate control achieves the set
temp
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