FixVault

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

Model 167 with engine 176, 177, 256.9, 264, 274.9 

Shown on model 167 with engine 256.9 

G14791087Courtesy of MERCEDES-BENZ USA
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
REMOVINGINSTALLING Remove/install     
1 Remove the underfloor paneling in the rear.   AR61.30-P-1001ME
2 Release and disconnect the electrical connections (1).    
3 Unscrew screws of the fuel system control unit (N118) and remove fuel system control unit (N118). TORQUE SPECIFICATION Bolt, fuel system control unit to underbody *BA47.10-P-1008-01J 
4 Install in the reverse order.    
5 Read out and delete fault memory.    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06ME
6 Commission fuel system control unit (N118). When replacing the FSCU (N118).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06ME
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
7 Conduct engine test run while checking for proper operation of the engine.    
FUEL TANK

Number Designation Model 167
BA47.10-P-1008-01J Bolt, fuel system control unit to underbody M6 Nm 4