13 53 318 Removing and installing/replacing all injectors (B48)

WARNING: This page is about a different car, the 2018 BMW 330i and 2017 BMW 330i. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

2 358 417
13 0 190
13 0 280
13 0 282
13 0 283
2 358 022

WARNING: Observe warning on cylinder head cover.
Disconnect the NEGATIVE BATTERY TERMINAL (risk of fire due to short-circuiting on dismantling).
Electric fuel pump starts up automatically when door is opened!
Carry out installation work on fuel system only with coolant temperature below 40°C.

Attention!

Wear full face guard and protective gloves.

Fuel can emerge spontaneously at high speed when the high pressure line is released!

Attention!

Wear safety goggles.

Oil and dirt particles may get into your eyes!

Before removing the rail and the injectors, clean or draw off the injector shafts.

Recycling:

Fuel escapes when fuel lines are detached.

Catch and dispose of escaping fuel.

Observe country-specific waste disposal regulations.

Attention!

Adhere to conditions of absolute cleanliness when carrying out repair work on the high-pressure fuel system!

Introduced contaminants can cause malfunctions in the system!

Do not allow any dirt particles or foreign bodies to get into the system.
Remove all traces of dirt contamination before removing lines or separate components.
Use only lint-free cloths.
Seal all fuel system openings with protective caps or plugs.

Attention!

Ignition coils must not be fouled by fuel.

The resistance of the silicone material is reduced significantly by contact with fuel, which may cause the ignition coil to fail!

NOTE: In case of dusty/sandy operating conditions of the vehicle, the injector shafts must be cleaned before removal.

Follow repair instructions for cleaning of the cylinder head in the area of the injectors in case of sand/dust contamination.

Attention!

When assembling, it is essential to adhere to screwing sequences and tightening torques!

Not adhering to the disassembly and installation instructions can lead to cracked weld seams and can thus cause an engine fire!!!

Necessary preliminary work:

Remove the IGNITION COILS .
Replace the PRESSURE LINE between rail and high pressure pump.

Removal:

Slacken nut (1).

Thread out ground cable (2) and place to side.

Pull out the cable channel (3) and put it aside.

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Unlock and release connectors (1) for injectors.

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NOTE: To disconnect the connectors at the injectors, the lock (1) needs to be pulled out in the direction of the arrow first. Then compress the lock (1) and pull off the connector at the same time.

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Unscrew the sealing cap (1) of the oil filler neck.

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Dismount the drip shield (1) from the cylinder head cover.

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Screw on the sealing cap (1) to the oil filler neck.

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Before loosening the rail: Blow out the injector shafts with an air gun (1) with less pressure.

Simultaneously, draw off the dirt particles with an explosion proof vacuum cleaner (2).

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Attention!

Not adhering to the disassembly instructions can lead to cracked weld seams and can thus cause an engine fire!!!

Release screws (1) M5x30.

Remove screws (1). Screws (1) must not be reused!

Parts: Screws M5x30.

Catch and dispose of escaping fuel with suitable materials.

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Unlock and disconnect plugs (1).

Release bolts M6x70 along the arrows.

Bolts may not be reused!

Replace screws.

Parts: Screws M6x70.

Remove rail upwards.

Injectors remain in the cylinder head.

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If fitted:

Remove gaskets (1).

Gaskets (1) are not required and will not be installed any more!

NOTE: The gaskets (1) use the principle of leak detection with helium.
These gaskets are only required during first assembly inside the plant.

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Injectors may be twisted to a maximum of 13 Nm with a torsional movement.

The special tool 2 358 417 is required in order to remove the injectors.

Using the special tool 2 358 417 ensures that the tensile force is not exceeded.

Special tool 2 358 417 consists of:

Threaded sleeves
Pull-out thread (left-hand thread)
Fixture for injector

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Unscrew fixture for injectors (1) from special tool 2 358 417 .

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Press in lock (1) and remove threaded sleeve (2) from special tool 2 358 417 .

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Install all fixtures (1) for the injectors.

NOTE: Locking (2) is not yet done, if the lever is up.

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Rotate the mounting (1) at 90° and latch the lock (2) downwards.

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Attach special tool 2 358 417 to cylinder head.

Tighten bolts finger tight along the arrows.

Attention!

Do not support on the panel of the extraction tool. Impermissible lateral forces can occur from this on the injectors.

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Screw in pull-out thread (1) completely.

Pull-out thread (1) is a left-hand thread.

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Insert threaded sleeves (1) again and screw threaded sleeves completely onto the fixtures for injectors.

Then tighten the bolts along the arrows to 5 Nm.

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Adjust torque wrench to 13 Nm in a clockwise rotation.

Turn torque wrench in clockwise direction until the injector is pulled out.

Disassemble all injectors individually.

Attention!

The injector must be replaced if the torque wrench clicks when the injector is pulled out.

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Before removing the special tool with the injectors check, whether all injectors were completely removed from the cylinder head. This can be seen on the fully visible threads (1) of the brass sleeves.

Release screws and carefully remove puller 2 358 417 with injectors vertically upwards from the cylinder head.

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Place the combination of special tool 2 358 417 and injectors (1) flatly on a clean table.

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Unlatch the lock (1) of the fixture upwards.

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Rotate the unlocked fixture (1) at 90°. Release and remove the injector downwards.

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Preparation for installation:

Replace Teflon ring:

Before the injectors are installed, the Teflon rings (1) at the injectors must be replaced.

Part: Teflon rings.

Before replacing the Teflon ring (1), make sure your hands and the work surface are clean and free of oil.

Avoid mechanical contact with injector tip (2).

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Remove Teflon ring (2) from injector (1) using special tool (3) 13 0 191 from special tool set 13 0 190 .

Use a fluff-free cloth only to remove combustion residues from cylindrical part of injector tip (do not use ultrasound or other tools/agents).

Do not clean injector tip.

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Push new Teflon ring (1) onto installation cone (2) 13 0 283 from the set of special tools 13 0 280 .

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Fit Teflon ring (1) on injector tip (3) with installation cone (2) 13 0 283 from set of special tools 13 0 280 .

NOTE:

Do not use fingernails to slide Teflon ring on.
Do not use any lubricating agents.
The sealing ring is expanded when slid on.

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Use special tool (1) 13 0 281 from set of special tools 13 0 280 to slide Teflon ring into groove (3) on injector.

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To bring the widened Teflon ring to the installation dimension, the special tool (1) 13 0 282 from set of special tools 13 0 280 must be slid up to limit position on injector (2).

Do not use any lubricating agents.

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NOTE: Pull mounting tip (1) of special tool 13 0 282 towards rear to release mounting taper (2) 13 0 283 .

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Attention!

Injection quantity compensation!

An injection quantity compensation must be carried out if an injector is replaced or changed on the cylinder side.

Injection quantity compensation is carried out with the aid of a so-called adjustment value.

Additional information regarding the injection quantity compensation can be found at the end of the repair instructions.

Installation:

Attention!

Not adhering to the installation instructions can lead to cracked weld seams and can thus cause an engine fire!!!

Mount retaining bridge (1) via bayonet fitting (2) to injector.

If fitted:

If the retaining bridge (1) is equipped with a cast lug, the correct installation position needs to be observed.

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Retaining bridge mounted properly , cast lug is at rear.

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Retaining bridge mounted improperly , cast lug (1) is at front.

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Distance gauge (1) 2 358 022 .

Not using the gauge may present the risk of cracking weld seams at the injector!

The thickness of the distance gauge is 8.5 millimeter. If the actual value drops below this dimension, the distance gauge needs to be replaced.

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Mount injectors with retaining bridges and new screws (M5x30) to the rail.

Keep the rail on a clean table in such a way, that the holders on the Rail are visible upwards. The electrical injector connections must then lie to the left of the holders of the rail.

Slide the distance gauge (2) 2 358 022 between retaining bridge and rail on top of the injector head.

Make sure the distance gauge rests against the retaining bridge!

Equally tighten both injector screws (1) M5x30 by hand until the distance gauge rests plane against the rail and the retaining bridge.

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Then the distance gauge (1) 2 358 022 is to be removed again.

Repeat this operation for all injectors.

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Check injectors (1) for loose fit on the rail.

Align connectors of the injectors (1) roughly parallel to the rail, injectors (1) need to be freely movable!

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Mount rail (1) with injectors from above onto cylinder head.
Connect connector (2) and lock.

Connector (2) must snap audibly into place.
1. Make sure the injector tips catch the corresponding holes in the cylinder head.
2. Make sure the alignment lugs of the injector are properly inserted into the retaining holes on the cylinder head.
As soon as a resistance can be felt when pushing down, position the rail screws M6x70 (A) and (B) and tighten them hand-tight.
Tighten rail screws (A) and (B) alternating for every 180° using a torque wrench, until the rail rests against the cylinder head (see figure below, RB13-012-60). Set torque wrench to 2 Nm.
- In case the tightening torque (2 Nm) is reached before the rail rests against the cylinder head, the rail needs to be disassembled and the installation procedure has to be restarted. Use new injectors after 3 unsuccessful attempts!
Insert rail screws (C) and (D).
Tighten rail screws in the following order by 5 Nm:
1. Tighten screw (A) by 5 Nm.
2. Tighten screw (D) by 5 Nm.
3. Tighten screw (B) by 5 Nm.
4. Tighten screw (C) by 5 Nm.

Rail bases (1) are open on cylinder head.

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Now tighten injector screws M5x30 in pairs (1 with 2, 3 with 4, 5 with 6, 7 with 8) and in alternating order through 90° until they are hand-tight using the socket on the extension (without reversible ratchet or torque wrench!).).
Screw the injector screws M5x30 according to the following plan:
Set torque wrench to 5 Nm.

Compliance with the sequence is absolutely mandatory!
- Fuel injector 1:
  1. Tighten injector screw (1) by 90° with torque wrench.
  2. Tighten injector screw (2) by 90° with torque wrench.
  3. Repeat steps a and b until both screws have reached 5 Nm.
- Fuel injector 2:
  1. Tighten injector screw (3) by 90° with torque wrench.
  2. Tighten injector screw (4) by 90° with torque wrench.
  3. Repeat steps a and b until both screws have reached 5 Nm.
- Fuel injector 3:
  1. Tighten injector screw (5) by 90° with torque wrench.
  2. Tighten injector screw (6) by 90° with torque wrench.
  3. Repeat steps a and b until both screws have reached 5 Nm.
- Fuel injector 4:
  1. Tighten injector screw (7) by 90° with torque wrench.
  2. Tighten injector screw (8) by 90° with torque wrench.
  3. Repeat steps a and b until both screws have reached 5 Nm.
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All injector screws (1) to (8) must be marked by a line (see graphic).
- Tighten injector screws with an angle of rotation!
  1. Tighten injector screw (1) with an angle of rotation of 90°.
  2. Tighten injector screw (2) with an angle of rotation of 90°.
  3. Tighten injector screw (3) with an angle of rotation of 90°.
  4. Tighten injector screw (4) with an angle of rotation of 90°.
  5. Tighten injector screw (5) with an angle of rotation of 90°.
  6. Tighten injector screw (6) with an angle of rotation of 90°.
  7. Tighten injector screw (7) with an angle of rotation of 90°.
  8. Tighten injector screw (8) with an angle of rotation of 90°.
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Check whether all injector screws (1) to (8) have been tightened with an angle of rotation of 90°.
All marks (dashes) must lie diagonally (see graphic).

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Release rail screws M6x70 (A), (B), (C), (D) (Releasing procedure is mandatory!).).
After that, tighten rail screws again in the following order by 5 Nm:
1. Tighten screw (A) by 5 Nm.
2. Tighten screw (D) by 5 Nm.
3. Tighten screw (B) by 5 Nm.
4. Tighten screw (C) by 5 Nm.
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All rail screws (A) to (D) must be marked by a dash (see graphic).
Tighten rail screws M6x70 (A), (B), (C), (D) with an angle of rotation of 90°.

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Check whether all rail screws (A) to (D) were tightened by an angle of rotation of 90°.