Remove/install powertrain control unit

AR07.08-P-0002MFE

Remove/install powertrain control unit

15.01.2020

Engine

139, 260, 282, 608, 654 in model 118, 177, 247

Shown on model 177

N127

Drivetrain control unit

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Notes on safety-relevant components

AH00.00-Z-0019-01A

 

Remove/install

1

Perform commissioning of the powertrain control unit (N127).

If the powertrain control unit (N127) is being replaced.



AD00.00-P-2000-06MFA

2

Release front left floor covering from center console and fold back until the powertrain control unit (N127) is accessible.

3

Release and disconnect electrical connectors from powertrain control unit (N127).

4

Release powertrain control unit (N127) from the locks (arrows A) and remove from the bracket.

5

Install in the reverse order

6

Connect vehicle diagnosis system, read out fault memory and clear if necessary.



AD00.00-P-2000-06MFA



Check

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

 Warning

Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.

Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.

AS49.00-Z-0001-01A

7

Conduct engine test run while checking for proper operation of the engine.