13 64 593 Removing and Installing/Replacing All Fuel Injectors (N73)

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Special tools required:

11 0 171
11 0 172
11 0 173
11 0 174
11 0 175
13 1 430
13 5 250

Necessary preliminary tasks:

Remove manifold. See 11 61 050 REMOVING AND INSTALLING INTAKE AIR MANIFOLD (N73)
Remove both fuel rails. See 13 53 107 REMOVING AND INSTALLING/REPLACING BOTH INJECTION LINES (N73)

Disconnect plug connection (1).

Release screws (3).

IMPORTANT: Do not open screws of locking washers (2).

Remove fuel injector holder (4).

Tightening torque: 13 53 4AZ. See 13 53 FUEL INJECTION NOZZLES AND PIPES .

Fig 1: Identifying Plug Connection, Screws, Washer & Fuel Injector Holder

G04774043

Courtesy of BMW OF NORTH AMERICA, INC.

Fit special tool 13 1 430 on fuel injectors. See 13 1 430 ADAPTER

Screw special tool 13 5 250 onto special tool 13 1 430. See 13 5 250 EXTRACTOR and 13 1 430 ADAPTER

Drive out fuel injectors with counterweight in direction of arrow.

Fig 2: Driving Out Fuel Injectors With Counterweight

G04774044

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

These tasks are only necessary if the fuel injector is not replaced.

The Teflon rings must be replaced.

Remove Teflon ring (2) with special tool 11 0 171 from injector (1).

Fig 3: Identifying Teflon Ring, Special Tool (11 0 171) & Injector

G04774045

Courtesy of BMW OF NORTH AMERICA, INC.

Attach new Teflon ring (1) to special tools 11 0 172 and 11 0 173.

Fig 4: Identifying Teflon Ring & Special Tools (11 0 172) & (11 0 173)

G04774046

Courtesy of BMW OF NORTH AMERICA, INC.

Using special tools 11 0 172/11 0 173, preassemble Teflon ring (1) with special tool 11 0 174.

Installation:

Assembly position

Fig 5: Pressing Teflon Ring With Special Tool (11 0 174)

G04774047

Courtesy of BMW OF NORTH AMERICA, INC.

Fit special tool 11 0 172 with preassembled Teflon ring (2) on injector (1).

Prepare special tool 11 0 175.

Fig 6: Identifying Injector, Teflon Ring & Special Tools (11 0 172), (11 0 173) (11 0 174)

G04774048

Courtesy of BMW OF NORTH AMERICA, INC.

Press injector (1) into special tool 11 0 175.

Fig 7: Pressing Injector Into Special Tool (11 0 175)

G04774049

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Installation:

Check function of DME.