LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 2021 >> GLS63 AMG >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Mixture Formation - 167 Chassis (1 Of 2) >> Testing & Repair >> Remove/Install Low Pressure Fuel Lines >> Remove/Install Low Pressure Fuel Line - AR07.03-P-1120MSC

Remove/Install Low Pressure Fuel Line - AR07.03-P-1120MSC

Engine 256.9 in model 167 

G14789900Courtesy 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  Notes on threaded connections fastened using a tightening angle-based tightening process   AH00.00-P-0020-01A
  General information on work on gasoline direct injection system   AH07.00-P-2000-01A 
REMOVINGINSTALLING Remove/install     
1 Remove noise insulation above high-pressure pump.   AR07.02-P-1020MSC 
    IMPORTANT Only install upper engine cover after the leak test.  
2 Remove fuel pressure via the service connection.   AR07.03-P-1460-04MSC 
    TORQUE SPECIFICATION Cap on service connection *BA07.03-P-1009-01MRT 
    SPECIAL TOOL Pressure hose Fig 2
CLEAN Clean     
3 Clean area around connections of the low-pressure line (4). Assembly cleaner *BR00.45-Z-1028-04A 
4 Remove fuel line (5) from low-pressure line (4) and seal with suitable stop plugs. TORQUE SPECIFICATION Union nut, fuel hose to diagnostic socket *BA07.03-P-1010-01MRT 
    SPECIAL TOOL Record plug Fig 3
5 Remove screw/bolts (3). TORQUE SPECIFICATION Bolt, holder for low-pressure line to lifting eye/crankcase/timing case cover *BA07.03-P-1008-01MRT 
    TORQUE SPECIFICATION Bolt, holder for low-pressure line to shield/supporting plate *BA07.03-P-1007-01MRT 
6 Remove screws (2) and remove shield (1). TORQUE SPECIFICATION Screw, shield to fuel high-pressure pump housing/support plate *BA07.02-P-1006-01MRT 
7 Remove low-pressure line (4) from lifting eye. TORQUE SPECIFICATION Bolt, holder for low-pressure line to lifting eye/crankcase/timing case cover *BA07.03-P-1008-01MRT 
8 Remove low-pressure line (4) from high-pressure pump and remove. TORQUE SPECIFICATION Union nut, low-pressure line to fuel high-pressure pump *BA07.03-P-1006-01MRT 
    SPECIAL TOOL Box wrench bit Fig 1
INSPECT Check     
9 Check low-pressure line (4).   AR07.03-P-1120-01MRT 
    Assembly cleaner *BR00.45-Z-1028-04A 
10 Install in the reverse order.    
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
11 Carry out engine test run and check engine for proper operation and leak tightness.    
12 Install upper engine cover.   AR01.10-P-2405MSC
HIGH PRESSURE FUEL PUMP, HIGH PRESSURE FUEL PUMP HOUSING

Number Designation Engine 256.9
BA07.02-P-1006-01MRT Screw, shield to fuel high-pressure pump housing/support plate Nm 8
HIGH-PRESSURE LINE, LOW-PRESSURE LINE, FUEL DISTRIBUTOR

Number Designation Engine 256.9
BA07.03-P-1006-01MRT Union nut, low-pressure line to fuel high-pressure pump Stage 1 Nm 15
Stage 2 ∠° 75
Stage 3 ∠° 25
HIGH-PRESSURE LINE, LOW-PRESSURE LINE, FUEL DISTRIBUTOR

Number Designation Engine 256.9
BA07.03-P-1007-01MRT Bolt, holder for low-pressure line to shield/supporting plate Nm 8
HIGH-PRESSURE LINE, LOW-PRESSURE LINE, FUEL DISTRIBUTOR

Number Designation Engine 256.9
BA07.03-P-1008-01MRT Bolt, holder for low-pressure line to lifting eye/crankcase/timing case cover Nm 8
HIGH-PRESSURE LINE, LOW-PRESSURE LINE, FUEL DISTRIBUTOR

Number Designation Engine 256.9
BA07.03-P-1009-01MRT Cap on service connection Plastic Nm 1
HIGH-PRESSURE LINE, LOW-PRESSURE LINE, FUEL DISTRIBUTOR

Number Designation Engine 256.9
BA07.03-P-1010-01MRT Union nut, fuel hose to diagnostic socket Nm 24
Fig 1: Identifying Box Wrench Bit (000 589 69 03 00)
G07449509Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Pressure Hose (119 589 04 63 00)
G12078803Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Record Plug (129 589 00 91 00)
G11971934Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1028-04A Assembly cleaner A 000 986 56 01