12 14 550 Replacing control unit (DME)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2019 MINI Cooper, 2018 MINI Cooper, 2017 MINI Cooper, 2016 MINI Cooper, and 2015 MINI Cooper. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Necessary preliminary tasks:

Remove VEHICLE BATTERY
Remove LEFT COWL PANEL COVER .

IMPORTANT:

Wire harness connectors must be always plugged in or be properly covered to prevent moisture penetrating into the connector strip on the engine control unit.

Follow instructions for REMOVAL AND REPLACEMENT OF CONTROL UNITS .

It is absolutely essential to read out the fault memory with the MINI diagnosis system and create a fault memory printout.

Replacement:

Carry out programming/encoding
If no data can be read out from the previous control unit, carry out injection quantity compensation (description at end of instructions).

Removal:

Release screw (1).

Fig 1: Control Unit Screw

G11645524

Courtesy of BMW OF NORTH AMERICA, INC.

Remove equipment holder (1) from the battery plate in direction of arrow and slightly pull it to the front.

Fig 2: Removing Equipment Holder From Battery Plate

G11645525

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip and remove cover (1).

Fig 3: Control Unit Cover

G11645526

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and disconnect all connectors (1) on control unit.

Fig 4: Control Unit Connectors

G11645527

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip and remove cover (1).

Fig 5: Control Unit Cover

G11645528

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock locks (1) and remove DME control unit (2) in upwards direction.

Fig 6: Removing DME Control Unit

G11645529

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Slide DME control unit (1) into the equipment holder until the locks (2) can be locked.

Fig 7: Sliding DME Control Unit Into Equipment Holder

G11645530

Courtesy of BMW OF NORTH AMERICA, INC.

Install cover (1).

Fig 8: Control Unit Cover

G11645528

Courtesy of BMW OF NORTH AMERICA, INC.

Connect all connectors (1) to control unit.

All connectors (1) must engage audibly.

Installation note:

Connect connectors from front to rear.

Fig 9: Control Unit Connectors

G11645527

Courtesy of BMW OF NORTH AMERICA, INC.

Install cover (1).

Fig 10: Control Unit Cover

G11645526

Courtesy of BMW OF NORTH AMERICA, INC.

Insert equipment holder (1) into rear section of battery plate (2) in direction of arrow.

Fig 11: Inserting Equipment Holder Into Rear Section Of Battery Plate

G11645534

Courtesy of BMW OF NORTH AMERICA, INC.

Tighten screw (1).

Tightening torque 12 90 1AZ .

Fig 12: Control Unit Screw

G11645524

Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work:

IMPORTANT: If the DME control unit has been replaced, it will also be necessary to reset the minimum quantity adjustment of the injectors!

Reset minimum quantity adaptation:

Connect diagnosis system and follow the diagnosis instructions.
- Read out vehicle data
- Identification without vehicle test
- Start vehicle test
- Vehicle handling
- Service functions
- Power train
- Engine electronics
- Adjustment functions
- Delete adaptations
- Reset adaptation values
- Resetting minimum quantity adaptations