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Home >> Mercedes Benz >> 2023 >> GLA250 Base >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Engine - Mixture Formation -- 247 Chassis (1 Of 2) >> Testing & Repair >> Check High-Pressure Fuel Lines >> Check High-Pressure Fuel Lines - AR07.03-P-1010-03MRT

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

Engine 139, 254.9, 256 

REPAIR MATERIALS

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

NOTES

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

Leaks on the fuel system and environmental damage can occur otherwise.

  1. Pull union nut (1a) at high-pressure line (1) towards rear.
  2. Clean sealing cone (1b) of high-pressure line (1).
  3. Check sealing cone (1b), fittings at high-pressure pump and fuel distributor for score marks and particulate residues.

    If a complaint has been submitted,

    Replace high-pressure line (1).

  4. Check sealing cone (1b), fittings at high-pressure pump and fuel distributor for visible deformation.

    If a complaint has been submitted,

    Replace high-pressure line (1).

    G14548162Courtesy of MERCEDES-BENZ USA