12 72 520 Removing and installing/replacing accelerator sensor (M73)

Switch off ignition.

NOTE: Whenever the accelerator sensor (PWG) is disconnected, basic adaptation of the accelerator sensor is required.
Procedure: Connect up DIS and select Diagnosis on EPC-1I Is control unit, then follow procedure set out in DIS instructions.

Remove lower trim from instrument panel.

NOTE: Press accelerator pedal by hand so as to avoid bending the pedal tip and falsifying the measured values.

Location: The accelerator sensor (1) is fitted to the pedal block.

Fig 1: Locating Accelerator Sensor

Unscrew and remove control unit (1) from bracket. Unfasten screws (2) and remove bracket.

Fig 2: Removing Control Unit From Bracket

Remove retaining ring (1) and unhook lever.

Fig 3: Removing Retaining Ring And Releasing Lever

Unfasten plug connection (1). Unfasten screws.

Fig 4: Disconnecting Plug Connection

Installation:

Note installation position of pedal travel sensor.

Note lever position (1 and 2).

CAUTION: Lever (1) is factory-set and must not be released.
If the lever (1) has been released, the entire pedal travel sensor must be replaced!

Fig 5: Identifying Lever Position

Installation:

Install bracket (1) with weld-in nuts.

Fig 6: Installing Bracket With Weld-In Nuts

Check adjustment of kickdown switch.

Fig 7: Adjusting Kickdown Switch

Installation:

Whenever the accelerator sensor (PWG) is disconnected, basic adaptation of the accelerator sensor is required.
Implementation:
Connect DIS and select diagnosis of EML IIIs control unit. To proceed, follow DIS instructions.