Engine Speed Sensor -G28-, Removing And Installing

Removing

-- Remove the noise insulation (front). Refer to OVERVIEW - NOISE INSULATION .

-- Open the clip -2- and free up the coolant hose -1- and push to the side.

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-- Remove the clip upward from the air duct pipe.

Vehicles with Coolant Valve

Fig 1: Transmission Coolant Valve -N488- Component Location

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-- Disconnect the connector -1-.

-- Remove the nuts -arrows- and move the Transmission Coolant Valve -N488- to the side.

All Vehicles

Fig 2: Identifying Engine Speed Sensor And Bolt

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-- Disconnect the connector -1-.

-- Remove the bolt -arrow- and remove the Engine Speed Sensor -G28-.

After removing or replacing the engine speed sensor the adaptation values for the chain length must be adapted again.

-- Connect the Vehicle Diagnostic Tester.

-- Select Diagnostic  operating mode and Start diagnostics  .

-- Select the Select individual test  tab and select the following tree structure consecutively:

• Drivetrain 
• Select the engine code and engine 
• 01 - OBD-capable systems  .
• 01 - Engine Electronics 
• 01 - Engine electronics, functions 
• 01 - Chain length diagnostic adaptation 

Tightening Specifications

• Refer to OVERVIEW - IGNITION SYSTEM 
• Refer to the appropriate service information .
• Refer to OVERVIEW - NOISE INSULATION .