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Check Fuel Pressure - AR07.00-P-1502SR

ENGINE 281 in MODEL 453 

G12094409Courtesy of MERCEDES-BENZ USA
  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 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
INSPECT Check     
1 Remove subwoofer Engine 281 in model 453
with code 556 (Radio 56A MM2012 with DAB and PREMIUM SOUND)
Engine 281 in model 453
with code 557 (RADIO 57A MM2012 without DAB)
Engine 281 in model 453
with code 561 (Radio 61C - PREMIUM without DAB with PREMIUM SOUND)
Engine 281 in model 453
with code 562 (Radio 62C - R0 with DAB and PREMIUM SOUND)
 
2 Remove covering over engine    
3 Clean the area at the connection between fuel line (1) and fuel distributor (2) and clad with clean cloths    
4 Connect the pressure gauge (4) with the pressure hose (5) and the adapter (3) SPECIAL TOOL Pressure gauge Fig 1
SPECIAL TOOL Pressure hose Fig 2
SPECIAL TOOL Adapter Fig 3
5 Disconnect the fuel line (1) from the fuel distributor (2)    
6 Install the adapter (3) at he fuel line (1) and install the fuel distributor (2) NOTES
Ensure a sufficient distance between the fuel line (1) and the belt drive.
Otherwise the fuel line (1) may be damaged.
SPECIAL TOOL Pressure gauge
Fig 1
SPECIAL TOOL Pressure hose Fig 2
SPECIAL TOOL Adapter Fig 3
7 Remove cloths    
8 Start engine and allow to idle    
9 Check fuel pressure IMPORTANT It may take a while until the fuel pressure has reached the required value.
From then on the fuel pressure must apply permanently.
Fuel pressure
In case of a complaint

Turn off engine, identify and eliminate the fault.
*BE07.61-P-1001-01SR 
10 Turn off engine    
11 Remove the pressure gauge (4), pressure hose (5), and the adapter (3) IMPORTANT Use cloths to collect escaping fuel.  
12 Connect the fuel line (1) to the fuel distributor (2)    
13 Start engine and allow to idle    
14 Check the leaktightness of the connection between the fuel line (1) and the fuel distributor (2)    
15 Turn off engine    
16 Install covering over engine    
17 Install subwoofer Engine 281 in model 453
with code 556 (Radio 56A MM2012 with DAB and PREMIUM SOUND)
Engine 281 in model 453
with code 557 (RADIO 57A MM2012 without DAB)
Engine 281 in model 453
with code 561 (Radio 61C - PREMIUM without DAB with PREMIUM SOUND)
Engine 281 in model 453
with code 562 (Radio 62C - R0 with DAB and PREMIUM SOUND)
 
FUEL PRESSURE

Number Designation Engine 281 in model 453
BE07.61-P-1001-01SR Fuel pressure bar 3, 5
Fig 1: Identifying Pressure Gauge (103 589 00 21 01)
G09980718Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Pressure Hose (103 589 00 21 04)
G07320815Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Adapter (607 589 02 91 00)
G12094412Courtesy of MERCEDES-BENZ USA