Removing Intake-Air Distributor

WARNING: This page is about a different variant/trim than selected.

WARNING: Highly inflammable or explosive materials

Danger of fire or explosion
1. → Avoid contact with hot parts or sources of ignition.
2. → Use suction to remove ignitable vapours. Attach warning sign in a clearly visible position.
3. → Contain leaked media using non-flammabe absorbent material and put it in a container designed for this purpose for disposal in accordance with local requirements.
4. → Secure collection containers/vessels to prevent them from tipping over.

WARNING: Hot fluid

Danger of scalding
1. → Let the fluid cool down.
2. → Wear personal protective gear.

Information

Escaping fuel must be soaked up using suitable binding material.
The fuel system must be depressurised before starting work on it.
Only work on the fuel system in well-ventilated rooms.
Any seals that were removed must always be replaced.
Never use sealant containing silicone or silicone spray when the injection system is open. Traces of silicone drawn in by the engine are not combusted and damage the < oxygen sensors.

Disconnect coolant line

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Line
1. 1.1 Unscrew screws -2 and 3-.
2. 1.2 Set coolant line -1- aside.

Release and disconnect cable plug -1 to 4-.

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Cable plug

1	Fuel injectors for direct fuel injection (DFI)
2	Valve for intake-air distributor flap
3	Knock sensor
4	Wiring harness for fuel pressure sensor, potentiometer for intake-air distributor flap, coolant temperature sensor, hall sender

Disconnect pressure hose

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Pressure hose
1. 3.1 Loosen screw-type clamp -2- _.
2. 3.2 Disconnect pressure hose -1- .
Disconnect electric wire harness for throttle housing -1- .

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Electric wire harness for throttle housing
1. 4.1 Release and disconnect cable plug -2- .
2. 4.2 Unclip clips -3- .
3. 4.3 Move electric wire harness for throttle housing -1- aside.
Disconnect electric wire harness

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Electric wire harness
1. 5.1 Release and disconnect cable plug -2- .
2. 5.2 Move electric wire harness -1- aside.
Release and disconnect cable plug

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Cable plug
Disconnect lines -1- .

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Lines on intake-air distributor
1. 7.1 Release and disconnect plug-in coupling -2- .
2. 7.2 Close off openings using suitable stoppers.
3. 7.3 Unclip clip -3- .
4. 7.4 Unclip lines -1- from clips -4- and set them aside.
5. 7.5 Disconnect vacuum lines -5- .
Release and disconnect cable plug for knock sensor -1- and unclip it from holder -2- .

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Cable plug for knock sensor
Remove high-pressure line -1- .

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High-pressure line
1. 9.1 Unscrew screw -2- and loosen holding clamp -3- .
2. 9.2 Unscrew union nuts -4 and 5- on high-pressure pump -6- and fuel distributor -7- .
3. 9.3 Remove high-pressure line -1- .
Remove hall sender for intake camshaft -1- .

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Intake camshaft hall sender
1. 10.1 Release and disconnect cable plug -2- .
2. 10.2 Unscrew screw -3- and pull out hall sender for intake camshaft -1- .
  1. 10.2.1 Replace O-ring on hall sender.
Remove support for intake-air distributor -1- .

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Support for intake-air distributor
1. 11.1 Screw off nut -2- .
2. 11.2 Unscrew screw -3- .
3. 11.3 Remove support for intake-air distributor -1- and guide it out of the engine compartment.
Disconnect electric line for generator -1- .

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Electric line for generator
1. 12.1 Unclip clip -2- from holder -3- .
2. 12.2 Set electric line for generator -1- aside.
Remove intake-air distributor -1- .

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Intake-air distributor
1. 13.1 Unscrew screws -2- .
2. 13.2 Remove intake-air distributor -1- .
1. 13.2.1 Replace seal on intake-air distributor.