Removal and installation the electronic control unit (ECU) (BMW 5 Series E28)

Removal

The electronic control unit (ECU) is located in the engine compartment on the right (see chapter Power supply system).

1. Disconnect the negative battery cable.

If your vehicle's radio has an anti-theft system, make sure you know the correct activation code before disconnecting the battery. Refer to Section 1 for information before disconnecting the wire Anti-theft audio system and instrument cluster language.

If a message in another language appears on the instrument panel display after connecting the battery, refer to Section 1 for the language setting procedure Anti-theft audio system and instrument cluster language.

2. On models with an ECU, remove the access cover on the right side of the engine compartment (see chapter Power supply system).

3. If the ECU is located inside the vehicle, remove the access cover on the right side.

4. Disconnect the electrical connectors from the ECU.

5. Remove the mounting bolts from the ECU bracket.

6. Carefully remove the ECU.

Avoid damaging the ECU with static electricity by wearing rubber gloves and not touching the connector contacts.

Installation

Installation is the reverse of removal.

The original material is located on the website BMWman.ru