12 72 010 Removing and installing/replacing throttle actuator (S54)

Turn off ignition.

Remove intake air manifold. Refer to 11 61 050 REMOVING AND INSTALLING INTAKE AIR MANIFOLD (S54) .

Press lock together and detach air hose (1) from air pipe (2).

Fig 1: Detaching Air Hose From Air Pipe

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Unhook pull rod (1) from ball head on servomotor side.

Fig 2: Unhooking Pull Rod From Ball Head

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Unlock plug (1) and detach from throttle actuator (2).

Fig 3: Detaching Plug From Throttle Actuator

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Release nuts and lay idle-speed control valve (1) to one side to gain access to screw connection of cable duct.

Fig 4: Releasing Idle-Speed Control Valve

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Release screw and remove manifold support (1).

Fig 5: Removing Manifold Support

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Installation  :

In order to avoid torsion stress on manifold, secure manifold support with screw but do not tighten down screw. Only tighten down screw when manifold is mounted on throttle assembly.

Release screws.

Fig 6: Removing Cable Duct

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Lay cable duct (1) to one side.

Release screws (1).

Fig 7: Removing Throttle Actuator

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Remove throttle actuator (2).

Installation  :

Adjust full-load stop after installing throttle actuator. Adjusting the full-load stop is described in the section "Basic throttle adjustment". Refer to 13 54 010 ADJUSTING BASIC THROTTLE SETTING (S .

Installation  :

Check adapter sleeves (1) for damage and correct installation position.

Fig 8: Checking Adapter Sleeves

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