12 51 215 Replacing wiring harness section for Valvetronic servomotor (B48, B46)

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 DAMAGE (ESD PROTECTION) .

Necessary preliminary tasks:

Removal:

Release expanding rivet and remove mounting for gasket (1).

Fig 1: Expanding Rivet And Gasket

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw and remove tension strut (1).

Fig 2: Tension Strut With Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Unclip and remove cover (1).

Fig 3: Control Unit Cover

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 4: Control Unit Connectors

Courtesy of BMW OF NORTH AMERICA, INC.

Release wiring harness from the partition wall (1).

Fig 5: Partition Wall

Courtesy of BMW OF NORTH AMERICA, INC.

Overview of Valvetronic servomotor wiring harness section:

Fig 6: Overview Of Valvetronic Servomotor Wiring Harness Section

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and disconnect following connectors and lines	Note
Unlock and disconnect connector from DME control unit
Unlock and disconnect connector from servomotor

Release wiring harness from clips and retainers.

Feed out wiring harness and remove.

Installation:

Route and install wiring harness.

Plug in all connectors as specified in table.

All connectors must audibly engage.

Connect all connectors (1) to control unit.

All connectors (1) must engage audibly.

Installation note:

Connect connectors from front to rear.

Fig 7: Control Unit Connectors

Courtesy of BMW OF NORTH AMERICA, INC.

Install cover (1).

Fig 8: Control Unit Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Join tension strut (1) and tighten with screws.

Tightening torque 61 21 5AZ .

Fig 9: Tension Strut With Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Join mounting for gasket (1) and secure with expanding rivet.

Fig 10: Expanding Rivet And Gasket

Courtesy of BMW OF NORTH AMERICA, INC.