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Home >> Mercedes Benz >> 2018 >> S450 Base >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Mixture Formation - 222 Chassis (2 Of 3) >> Testing & Repair >> Remove/Install High Pressure Fuel Line >> Remove/Install Right High Pressure Fuel Line - AR07.03-P-1002MNL

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

Engine 176 in model 217, 222 

G15366083Courtesy 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
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
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
  Note on calculation of tightening torque when using insertion or socket tools with various effective lengths   AH00.00-P-0015-01CW
  General information on work on gasoline direct injection system   AH07.00-P-2000-01A
REMOVINGINSTALLING Remove/install     
1 Disconnect ground line for on-board electrical system battery (G1)   AR54.10-P-0003LF
2 Remove right air filter housing   AR09.10-P-1152MNL
    INSTALLATION IMPORTANT : Only install upper engine cover after the leak test.  
3 Remove left-hand air filter housing   AR09.10-P-1151MNL
4 Remove soundproofing (1)    
5 Remove engine suspension lug at rear right   AR01.20-P-5012-02MNL
    TORQUE SPECIFICATION Bolt, heat shield/rear lifting eye to cylinder head *BA01.30-P-1003-01N 
    TORQUE SPECIFICATION M6X1 *BA00.10-P-1002-04A 
    SPECIAL TOOL Record plug Fig 1
6 Unclip electric line from high-pressure line (2)    
7 Remove bracket bolts (3) INSTALLATION IMPORTANT : Align the brackets (3) before screwing into place. Ensure that high-pressure line (2) is routed correctly.  
    TORQUE SPECIFICATION Bolt, fuel line clamp to engine/bracket *BA07.03-P-1004-01H 
8 Clean area around high-pressure line (2) NOTES
Thoroughly clean area around high-pressure line (2) at points to be disconnected.
Failure can occur otherwise to the fuel system
 
    Assembly cleaner *BR00.45-Z-1028-04A 
9 Relieve fuel pressure over diagnostic socket   AR07.03-P-1460-01MNL 
    TORQUE SPECIFICATION Dust protection cap to service connection *BA07.03-P-1005-01H 
    SPECIAL TOOL Pressure hose Fig 3
10 Relieve fuel pressure in fuel system high-pressure circuit.   AR07.03-P-1460-02MM 
11 Remove high-pressure line (2) and close off openings with suitable stop plugs NOTES
Do not kink or bend high pressure line (2).
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 Record plug Fig 1
    SPECIAL TOOL Box wrench bit Fig 2
12 Check high-pressure line (2) for damage   AR07.03-P-1010-03MNL 
    Assembly cleaner If a problem arises
↓
Replace high-pressure line (2).
*BR00.45-Z-1028-04A 
13 Remove brackets (3) from high-pressure line (2) When replacing high-pressure line (2).  
14 Install in the reverse order    
15 Check fuel high-pressure circuit for leaktightness.   AR07.03-P-1010-04MM 
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
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
16 Perform an engine test run and check engine for proper operation and leak tightness    
17 Install upper engine cover    
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143

Number Designation 8.8 10.9
BA00.10-P-1002-04A M6X1 Nm 9 13
CYLINDER HEAD

Number Designation Engine 176
BA01.30-P-1003-01N Bolt, heat shield/rear lifting eye to cylinder head M6 Nm 9
INJECTION NOZZLES, INJECTION VALVES, LINES

Number Designation Engine 176
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 176
BA07.03-P-1004-01H Bolt, fuel line clamp to engine/bracket Nm 9
INJECTION NOZZLES, INJECTION VALVES, LINES

Number Designation Engine 176
BA07.03-P-1005-01H Dust protection cap to service connection Nm 1
Fig 1: Identifying Record Plug (129 589 00 91 00)
G12078802Courtesy 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