Generators & Regulators: Other BMW 5 series E60/E61

GENERATOR & REGULATOR SWITCH

Check for correct connections on fully charged battery, generator and starter motor. Check for good ground connection between engine and body. Check for properly tightened drive belt. Connect DIS tester. Search down through the following

1. Function Selection
2. Complete Vehicle
3. Drive
4. Voltage And Current Regulation
5. Voltage And Current Generation

Work through test modules. To diagnose oscillograms for each fault, see

GENERATOR OSCILLOGRAMS

. If generator is faulty, repair or replace it. To replace, see

GENERATOR

under REMOVAL & INSTALLATION.

GENERATOR OSCILLOGRAMS

Scheme 19

Scheme 20

Scheme 21

Scheme 22

Scheme 23

Scheme 24

Scheme 25

CHECKING GENERATOR

Note. Generator with BSD interface can communicate with engine control unit (DME/DDE). Generator is not connected to charge telltale light. Generator can identify various faults.

Note. BSD generator can be recognized by plug connection on generator.

1. Check for correct corrections on charged battery, generator and starter motor. Make sure of good ground connection between engine and body. Make sure of good tension on ribbed V-belt.
2. Read out DME/DDE fault memory.
3. Connect diagnosis tester. Search down in the following order: Function Selection Complete Vehicle Drive Voltage And Current Regulation Voltage And Current Generation Follow instructions in diagnostic program. To diagnose oscillograms for each fault, see «GENERATOR OSCILLOGRAMS»(ref-163725-S42026577092004071200000) . If generator is faulty, repair or replace it. To replace, see «GENERATOR»(ref-163725-S40658801592004071200000) under REMOVAL & INSTALLATION.

FAN COWL

Note. For purposes of clarity, some procedures are shown in figures after component has been removed.

GENERATOR DRIVE BELT

Note. If drive belt is to be reused, mark direction of travel and reinstall drive belt in same direction.

RADIATOR COVER