LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mercedes Benz >> 2021 >> G63 AMG >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System - 463 Chassis >> Testing & Repair >> Remove/Install Fuel Pump Control Unit >> Remove/Install Fuel Pump Control Unit - AR47.20-P-5717GW
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Remove/Install Fuel Pump Control Unit - AR47.20-P-5717GW

Engine 157, 273, 642 in model 463 

as of model year 2013 

Engine 176 in model 463 

up to model year 2019 

Engine 279 in model 463 

Fig 1: Fuel Pump Control Unit Components Location - Engine 176 In Model 463 Up To Model Year 2019
G13668784Courtesy of MERCEDES-BENZ USA

Shown on 463.272 

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
  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Connect the vehicle diagnosis system and read out the variant coding from the fuel system control unit (N118). When replacing the FSCU (N118).  
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 157, 273, 642 in model 463 as of model year 2013 up to model year 2019
Engine 176, 279 in model 463 up to model year 2019
INSTALLATION IMPORTANT : Transfer the stored data to the new fuel system control unit (N118).
AD00.00-P-2000-04A
2.1 Remove the right trim of the D-pillar. Engine 176, 279 in model 463 as of model year 2013 up to model year 2019  
    Engine 176, 279 in model 463 (except 463.202) as of model year 2013 up to model year 2019 AR68.30-P-4505GW
2.2 Remove side trim. Engine 157, 273, 642 in model 463 as of model year 2013  
    Engine 273 in model 463.202 as of model year 2013 up to model year 2019 AR68.30-P-1450GWC
3.1 Unscrew nuts (1). Engine 157, 273, 279, 642 in model 463 as of model year 2013  
3.2 Remove screws on the bracket of the fuel system control unit (N118). Engine 176 in model 463 up to model year 2019  
4 Remove the fuel system control unit (N118) and the bracket (2). IMPORTANT Expose the electrical wiring harness.  
5 Disconnect the electrical connectors from the fuel system control unit (N118).    
6 Remove the fuel system control unit (N118) from the bracket (2). When replacing the FSCU (N118).  
7 Install in reverse order.    
INSPECT Check     
8 Perform engine test run.