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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 Low-Pressure Fuel Line - AR07.03-P-1120-01MRT

Check Low-Pressure Fuel Line - AR07.03-P-1120-01MRT

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 low-pressure lines (1).

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

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

    If a complaint has been submitted,

    Replace low-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 low-pressure line (1).

    G14548162Courtesy of MERCEDES-BENZ USA