Mercedes-Benz B-Class Quiz
Electrical equipment

Alternator removal and installation

In this manual: Electrical equipment
Operator's Manual - Mercedes-Benz B-Class — 194Airbags and belt tensioners — 9Diesel engines — 22Electrical equipment — 6Automatic transmission — 5Manual gearbox — 5Brakes — 12Heating - air conditioning — 13Suspension - axles - geometry — 7Vehicle specifications and identification — 7Driveshafts — 4Steering — 6Clutch — 4Body — 18
~1min read

ALTERNATOR

REMOVAL AND REFITTING

  • Disconnect the battery.
  • Remove the drive belt (see operation in the 'ENGINE' chapter).
  • Disconnect the connector (1) (Fig.7).
  • Remove the wiring harness clip from the air conditioning compressor.
  • Remove the mounting bracket (2).
  • Without opening the air conditioning circuit, remove and set aside the compressor (3) (see operation in the 'HEATING-AIR CONDITIONING' chapter).
  • Disconnect the electrical cables from the alternator.
  • Unscrew the screw (4).

Dépose-repose de l'alternateur
Fig. 7

ne se dépose pas, elle reste en place.The screw (4) does not come out; it stays in place.
  • Remove the screws (5).
  • Remove the alternator (6).

When refitting, observe the following points:

  • the routing and tension of the drive belt,
  • tighten the alternator screws to 2 daN.m,
  • tighten the mounting bracket (2) to 2 daN.m.

Test yourself

A quick Mercedes-Benz B-Class quiz: every answer comes with an explanation and a link to the manual page.