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Home >> Mercedes Benz >> 2021 >> GLB250 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Mixture Formation - 247 Chassis >> Testing & Repair >> Check High-Pressure Fuel Lines - AR07.03-P-1010-03MM

Check High-Pressure Fuel Lines - AR07.03-P-1010-03MM

Engine 133, 152.9, 157, 176, 178, 264, 270, 271.8, 274, 276, 278 

Engine 260, 282 

MODIFICATION NOTES

25.10.2017 "Check thrust piece" added. Operation step 4  
REPAIR MATERIALS

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

NOTES Do not re-install damaged high-pressure lines (1).

Fuel system leakage and environmental damage may occur otherwise.

  1. Tighten union nut (1a) and thrust piece (1b) on the high-pressure line (1) to the rear.
  2. Clean sealing cone (1c) of high-pressure line (1).
  3. Determine not deformed area of the sealing cone (1c) using a feeler gauge.

    IMPORTANT The not deformed area arises from the distance from the first measuring point (1M) to the second point (2M).

    If non-deformed area is not at least 1 mm.

    Replace high-pressure line (1).

  4. Check diameter of thrust piece (1b).

    This must be 10.2 mm before retightening. In the case of deviations in the diameter:

    Replace high-pressure line (1).

    G11974113Courtesy of MERCEDES-BENZ USA