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Home >> Mercedes Benz >> 2008 >> S550 Base >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System -- S-Class (221) >> Testing & Repair >> Empty fuel tank on systems with faulty fuel pumps - AR47.10-P-4000SX

Empty fuel tank on systems with faulty fuel pumps - AR47.10-P-4000SX

MODEL 216 with ENGINE 156, 157, 273, 275, 278 

MODEL 221 with ENGINE 156, 157, 272, 273, 275, 276, 278, 629, 642 

Fig 1: Opening Fuel Tank Latch
G07583285Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Fuel Tank, Chambers And Suction Hose
G07583286Courtesy of MERCEDES-BENZ USA
  Drain    
DANGER Risk of explosion  caused by fuel igniting, risk of poisoning  caused by inhaling and swallowing fuel and risk of injury  to eyes and skin caused by contact with fuel No fire, sparks, open flames or smoking. Only pour fuels into suitable and appropriately marked containers. Wear protective clothing when handling fuel. AS47.00-Z-0001-01A 
DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer. AS00.00-Z-0010-01A
  Drain right chamber (4) of fuel tank (1)     
1 Open fuel filler flap and remove filler cap    
2 Open latch (2) and remove IMPORTANT If the fuel tank (1) is completely full a small amount of fuel will escape.  
3 Pump fuel out of the fuel tank (1) from the right chamber (4) using an extraction hose in a safety container NOTES To prevent electrostatic charging, the extraction device must be grounded!
IMPORTANT Only the right chamber (4) of the fuel tank (1) will be emptied!
 
    IMPORTANT Observe manufacturer's operating instructions and notes.
FLUID SPECIFICATION
Decanting gasoline/diesel delivery pump
gotis://D_47_02.0
*BF47.10-P-1001-01H
  Drain left chamber (3) of fuel tank (1)     
4 Remove fuel pump Vehicles with diesel engine AR47.20-P-5710SXI
    Vehicles with gasoline engine AR47.20-P-5710SX 
5 Move extraction hose (5) through the right chamber (4) forward into the left chamber (3) of the fuel tank (1) NOTES Handle extraction hose (5) carefully in order to avoid damage to the components installed in the fuel tank (1).  
6 Pump fuel out of the fuel tank (1) from the right chamber (4) using a safety container NOTES To prevent electrostatic charging, the extraction device must be grounded!
IMPORTANT Observe manufacturer's operating instructions and notes.
 
    FLUID SPECIFICATION
Decanting gasoline/diesel delivery pump gotis://D 47 02.0
*BF47.10-P-1001-01H
7 Mount hook catch (2)    
8 Install fuel pump Vehicles with diesel engine AR47.20-P-5710SXI
    Vehicles with gasoline engine AR47.20-P-5710SX 
  Fill     
9 Pump fuel through filler neck into fuel tank (1) NOTES To prevent electrostatic charging, the extraction device must be grounded!  
10 Mount filler cap and close fuel filler flap    
INSPECT Checking     
DANGER Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns during starting procedure or when working near the engine as it is running Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.
AS00.00-Z-0005-01A
11 Carry out an engine test run and check fuel system for leaks with engine running    
FUEL TANK

Number Designation Model 221.022/028/054/056/ 070/071/080/084/086/ 087/095/122/128/154/ 156/170/171/176/180/ 184/186/187/195
Model 221.003/026/057/073/ 082/083/094/103/126/ 157/173/182/183/194 with code 830
Model 221.003/026/057/073/ 082/083/094/103/126/ 157/173/182/183/194 without code 830
BF47.10-P-1001-01H Fuel tank capacity Total filling capacity Liters 90 83
Reserve capacity Liters 11 11
FUEL TANK

Number Designation Model 221.074/077/174/177/1 79
BF47.10-P-1001-01H Fuel tank capacity Total filling capacity Liters 90
Reserve capacity Liters 14