Check fuel high pressure circuit - AR07.03-P-1010-04MM

ENGINE 133, 152.9, 157, 176, 177, 178, 270, 274, 276, 278 

The fuel system must be checked for leaktightness after repair work on the high-pressure circuit.

A damaged fuel system can lead to leakage and personal injury, damage to property or to the environment!

Engine 270, 274 with code 924 (Bivalent natural gas drive)

After changing components on the fuel system perform commissioning using the diagnostic system and then perform an engine test run for about 1 minute not under load with an engine rpm of 1500 to 2000 rpm.

After connecting the diagnostic system, the following operation steps are performed:

Menu items

Vehicle selection →

Drive →

ME-SFI [ME] control unit (MED40CNG) →

Actuation - selection of the operating mode

Then follow the menu guidance and process.

After exchanging fuel injectors perform a mixture adaptation using the diagnostic system.

After connecting the diagnostic system, the following operation steps are performed:

Menu items

Vehicle selection →

Drive →

Control unit →

Complete list of guided tests →

Check fuel high-pressure circuit after doing repair work Then follow the menu guidance and process.