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Remove/Install Fuel Pump And Fill Level Sensor - AR47.20-P-7000MFG

Engine 139 in model 118, 177, 247 

MODIFICATION NOTES

13.11.2019 Document completely revised.    

Shown on model 177.0 

G16050264Courtesy of MERCEDES-BENZ USA
G16050265Courtesy of MERCEDES-BENZ USA
G16050266Courtesy of MERCEDES-BENZ USA
DANGER Risk of explosion  caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contact with fuel. No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only.
Wear protective clothing when handling fuel.
AS47.00-Z-0001-01A 
Topical note  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
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 fuel tank (10). IMPORTANT Solely store fuel tank (10) horizontally. AR47.10-P-4100MFG 
2 Release and disconnect electrical connector (1) from fuel pump (M3).    
3 Release and disconnect electrical connector (2) from fuel tank fuel level indicator fill level sensor, left (B4/1).    
4 Release and disconnect fuel line (3).    
5 Seal exposed openings with suitable stop plugs. SPECIAL TOOL Record plug Fig 2
6 Remove fuel line (3) from fuel tank (10).    
7 Remove locking ring (4). SPECIAL TOOL Claw-type wrench Fig 1
8 Lift upper section (5) and carefully place to one side. INSTALLATION IMPORTANT Ensure upper section (5) is correctly seated between slots on fuel tank (10).
Replace flange seal (6).
 
9 Release retainer of swirl pot (7) in fuel tank (10) by pulling upward (arrow A).    
10 Carefully slide swirl pot (7) in direction of arrow (arrow B) out of bracket (8) and remove together with upper section (5).    
11 Cover exposed opening with a clean rag. NOTES
Ensure scrupulous cleanliness.
Fuel system will otherwise be damaged.
 
12 Install in the reverse order.    
13 Read out the fault memory and delete if necessary.    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06MFA
Fig 1: Identifying Claw-Type Wrench (001 589 00 07 00)
G10038124Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Record Plug (129 589 00 91 00)
G09975019Courtesy of MERCEDES-BENZ USA