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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 High Pressure Fuel Line >> Remove/Install Right High Pressure Fuel Line - AR07.03-P-1002MNP

Remove/Install Right High Pressure Fuel Line - AR07.03-P-1002MNP

Engine 177 in model 167 

G14789836Courtesy of MERCEDES-BENZ USA
G14789837Courtesy of MERCEDES-BENZ USA
DANGER Risk of explosion  caused by fuel igniting. Risk of injury  To skin and eyes caused by fuel spraying out at high pressure Keep all ignition sources out of hazard area. Do not carry out any work on system when it is pressurized. AS07.16-Z-0001-01A 
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
WARNING Risk of injury  . Skin or eye injuries may result when handling hot or glowing objects. Wear protective gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
CAUTION Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.
AS00.00-Z-0017-01A
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 Disconnect the ground line for the on-board electrical system battery (G1).   AR54.10-P-0003ME
2 Remove expansion reservoir of the low-temperature circuit and place to one side with connected lines.   AR09.41-P-0001MNP
3 Remove fuel pressure via the service connection.   AR07.03-P-1460-01MNL 
    TORQUE SPECIFICATION Dust protection cap to service connection *BA07.03-P-1005-01H 
    SPECIAL TOOL Pressure hose Fig 3
4 Remove the control unit bracket for engine management (MCM).   AR07.08-P-7016MNP 
5 Release electrical connector (1) and disconnect.    
6 Remove engine wiring harness from high-pressure line (4) (arrow).    
7 Remove vacuum hose (2) and place to one side. INSTALLATION IMPORTANT : Replace cable tie.  
8 Remove engine lifting lug.   AR01.20-P-5012-02MNP
    TORQUE SPECIFICATION Bolt, differential pressure sensor/holder to holder for pressure hoses *BA07.04-P-1004-01Q 
    TORQUE SPECIFICATION Screw, holder of vacuum line to heat shield/lifting lug at right rear *BA01.30-P-1007-01N 
    TORQUE SPECIFICATION Screw, holder of connectors to heat shield/lifting lug at right rear *BA01.30-P-1006-01N 
    TORQUE SPECIFICATION Bolt, heat shield/rear lifting eye to cylinder head *BA01.30-P-1003-01N 
9 Remove noise insulation (3).    
10 Remove screws (7) of the brackets (6). TORQUE SPECIFICATION Bolt, fuel line clamp to engine/bracket *BA07.03-P-1004-01H 
11 Clean the area around the high-pressure line (4). NOTES
Thoroughly clean area around high-pressure line (4) at the locations to be separated. Failure can occur otherwise to the fuel system
 
    Assembly cleaner *BR00.45-Z-1028-04A 
12 Release fuel pressure in the fuel high-pressure circuit.   AR07.03-P-1460-02MM 
    SPECIAL TOOL Box wrench bit Fig 2
13 Remove union nuts (5), remove high-pressure line (4), and seal openings with suitable stop plugs. NOTES
Do not kink or bend high-pressure line (4). Otherwise leaks and damage can occur.
 
    TORQUE SPECIFICATION Union nut, fuel line to fuel distributor/fuel system high-pressure pump *BA07.03-P-1001-01H 
    SPECIAL TOOL Box wrench bit Fig 2
    SPECIAL TOOL Record plug Fig 1
INSPECT Check     
14 Check the high-pressure line (4) for damage.   AR07.03-P-1010-03MNA 
    Assembly cleaner
If damage is present,
↓
replace high-pressure line (4).
*BR00.45-Z-1028-04A 
15 Change brackets (6) on the high-pressure line (4). If a new high-pressure line (4) is installed.  
16 Install in the reverse order.    
INSPECT Check     
17 Check fuel high-pressure circuit for leak tightness.    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-06ME
      AR07.03-P-1010-04MM 
WARNING Risk of burn injuries  , suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning  caused by skin contact with solid components of the exhaust. Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area. AS49.00-Z-0001-01A
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
18 Perform engine test run. While doing so, check engine for proper operation and leak tightness    
CYLINDER HEAD

Number Designation Engine 177
BA01.30-P-1003-01N Bolt, heat shield/rear lifting eye to cylinder head M6 Nm 9
CYLINDER HEAD

Number Designation Engine 177
BA01.30-P-1006-01N Screw, holder of connectors to heat shield/lifting lug at right rear M6 Nm 8
CYLINDER HEAD

Number Designation Engine 177
BA01.30-P-1007-01N Screw, holder of vacuum line to heat shield/lifting lug at right rear M6 Nm 8
INJECTION NOZZLES, INJECTION VALVES, LINES

Number Designation Engine 177
BA07.03-P-1001-01H Union nut, fuel line to fuel distributor/fuel system high-pressure pump In case of reusability   Nm 22
For new lines Stage 1 Nm 15
Stage 2 ∠° 90
INJECTION NOZZLES, INJECTION VALVES, LINES

Number Designation Engine 177
BA07.03-P-1004-01H Bolt, fuel line clamp to engine/bracket Nm 9
INJECTION NOZZLES, INJECTION VALVES, LINES

Number Designation Engine 177
BA07.03-P-1005-01H Dust protection cap to service connection Nm 1
SENSORS

Number Designation Engine 177
BA07.04-P-1004-01Q Bolt, differential pressure sensor/holder to holder for pressure hoses Nm 8
Fig 1: Identifying Record Plug (129 589 00 91 00)
G11971934Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Box Wrench Bit (000 589 80 03 00)
G11138963Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Pressure Hose (119 589 04 63 00)
G12078803Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS

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