12 51 001 Replacing Wiring Harness Section For Engine (N62)

Necessary preliminary tasks:

Read out DME fault memory
Disconnect battery negative lead
ENGINE BONNET/HOOD in assembly position
Remove FRESH AIR DUCT on right and if necessary on left
Remove center of ASSEMBLY PARTITION WALL
Remove intake air manifold
Remove underbody protection at front/rear
Remove REINFORCEMENT PLATE
Remove ELECTRIC FAN with fan cowl
Remove right exhaust manifold
Remove STARTER MOTOR
Remove ALTERNATOR

Release screws (2).

Detach electronics box cover (1) from fixture (3) in direction of arrow towards right.

Installation:

Secure electronics box cover (1) in direction of arrow on left in fixture (3).

Fig 1: Detaching Electronics Box Cover From Fixture

G04740389

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten following plug connections:

Fig 2: Identifying Plug Connections (1 Of 4)

G04740418

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten following plug connections:

Fig 3: Identifying Plug Connections (2 Of 4)

G04740419

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten following plug connections:

Fig 4: Identifying Plug Connections (3 Of 4)

G04740420

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten following plug connections:

Fig 5: Identifying Plug Connections (4 Of 4)

G04740421

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Fit profile seals correctly.

Check for water leaks.

Assemble engine.

NOTE:

Check function of DME.

Check electronics box cover and rubber grommets on equipment carrier for watertightness.