Removing the high-pressure rail of the cylinders 1 to 3

WARNING: Hot fluids.
Risk of scalding!

Conduct all work in the vehicle wearing appropriate personal protective equipment only.

Preliminary work

Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVE THE SEAL FOR THE HOOD REAR .
Refer to REMOVING ACOUSTIC COVER AT REAR .
Refer to REMOVE IGNITION COILS .
Refer to REMOVE THE HIGH PRESSURE LINE BETWEEN THE RAIL AND THE HIGH PRESSURE PUMP .

NOTE: RISK OF DAMAGE
Contaminant or foreign body.
Contamination can result in malfunctions, loss of function or leaks.

Adhere to the utmost cleanliness.
Protect components from contamination e.g. by covering.
Close off line connections with seal plugs.

NOTE: RISK OF DAMAGE
Damage to the ignition coil.
The silicone hose of the ignition coil must not be contaminated by fuel as this can lead to failure of the ignition coil.

When working on the fuel system, cover the ignition coils with suitable materials and remove where required.
Do not oil or grease the silicone tube of the spark plug socket. Do not use any protection or maintenance products (e.g. silicone spray, rubber care products, rust remover, etc.).

NOTE: RISK OF DAMAGE
Damage to the injector tips and Teflon ring.
Improper handling of the injector tips and Teflon ring can lead to malfunctioning of the injector.

Avoid mechanical contact with injector tip.
When exchanging Teflon ring, hands and work surface must be clean and free of oil. Do not use any lubricating agents.

Do not use fingernails to slide Teflon ring on.

NOTE: RISK OF DAMAGE
Damage to injectors.
Excessive force may damage the injector and this means having to replace the injector.

Twist the injectors with a torsional movement of maximum 13 Nm.
Unfasten nut (1).
Feed out ground cable (2) and set it aside.
Feed out the cable duct (3) and set it aside.

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Unlock lock (1) arrow direction from the top.
Press lock (1) together and release.
Detach the connector (2) from the injectors.

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Unlock and release all connectors (1) of the injectors.

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Unlock and loosen connector (1).
Release screws (M5x30) (2).
Remove screws (2).

Do not reuse the bolts (2).

Parts: Screws (M5x30)

Catch and dispose of leakage fuel with suitable materials.

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Unscrew the screws (M6x30) (arrows).

Do not reuse the bolts.

Replace screws.

Parts: Screws (M6x30)

Remove rail (1) upwards.

The injectors remain in the cylinder head.

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Remove the gaskets (1).

The seals (1) are only required during the initial assembly at the plant and will not be installed again.

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NOTE: RISK OF DAMAGE
Damage to injectors.
Excessive force may damage the injector and this means having to replace the injector.

Twist the injectors with a torsional movement of maximum 13 Nm.

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In the event that the specified value for the tensile force is exceeded: Replace injectors.
Use the special tool 2 358 417 to remove the injectors.

Special tool 2 358 417 is used to ensure that the tensile force is not exceeded.

Special tool 2 358 417 consists of:

(1) Threaded sleeves
(2) Pull-out thread (left-hand thread)
(3) Mounting for the injectors

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

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

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Install all stands (1) for the injectors.

The intake (1) is not locked if the lever (2) is on the top.

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Turn intakes (1) 90° and lock the lever (2) downwards.

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NOTE: RISK OF DAMAGE
Damage to injectors.
Excessive force may damage the injector and this means having to replace the injector.

Do not use the puller plate as a support.
Attach special tool 2 358 417 to cylinder head.

Hand-tighten the bolts (arrows).

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NOTE: TECHNICAL INFORMATION
The extraction thread is a left-hand thread.

Screw in pull-out thread (1) on the special tool 2 358 417 fully.

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Insert threaded sleeves (1) again and screw threaded sleeves completely onto the stands for injectors.
Then tighten screws (arrows) on special tool 2 358 417 to 5 Nm.

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Adjust the torque wrench to 13 Nm, clockwise rotation.
Turn torque wrench (1) in clockwise direction with special tool 0 496 106 (11 8 720) until the injector is pulled out.

Disassemble all injectors individually.

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Before removing the special tool 2 358 417 with the injectors, check if all the injectors were completely pulled out of the cylinder head.

This can be recognized on the completely visible threads of the sleeves (1).

Loosen screws on special tool 2 358 417.

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Remove the special tool 2 358 417 with injectors (1) carefully upwards vertically from the cylinder head.
Place the combination of the special tool 2 358 417 and the injectors (1) flat on a clean table.

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Unlock the stand lock (1) from the top.

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Turn the unlocked stand (1) by 90°.
Release and remove the injector downwards.

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