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Home >> Mini >> 2012 >> Cooper Base, 2D Convertible, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System - Repair -- R57 >> Injection Nozzle And Lines >> 13 53... Pressure line leak test

13 53... Pressure line leak test

WARNING:
  • Risk of burning!
  • Rotating components (risk of injury!)

Necessary preliminary work: 

IMPORTANT: Air bubbles form continuously in the event of a leak!
Static air bubbles indicate that there is no leak. They may be caused by the leak detector spray or when the leak detector agent liquefies.

Picture shows N14

Apply leak detector spray in area of screw connection (1) of pressure line (2).

Repeat procedure several times and check for bubbles with telescopic mirror in the entire screw connection area (1).

Fig 1: Identifying Screw Connection Of Pressure Line
G04789970Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: In case of tightness:
  • Assemble engine
  • Read out fault memory, clear if necessary.

In event of leakage: 
  • Replace both components  at leak
  • Repeat leak test after replacing components