Auxiliaries Belt

Fig 1: Auxiliaries Belt Routing

Courtesy of VOLVO CARS CORPORATION

1. Generator (GEN)
2. Belt tensioner
3. Servo pump
4. Water pump
5. air conditioning (A/C) compressor.

All auxiliary units, the alternator, servo pump and A/C compressor are directly mounted in the engine block. They are driven by the vibration damper via an auxiliaries belt. This solution gives a compact design.

The coolant pump is also driven by the auxiliaries belt.

The auxiliaries belt has a mechanical belt tensioner.