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Home >> Mini >> 2010 >> Cooper S, 2D Hatchback, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 90 (Fuel System - Repair - R55 (N14)) >> Injection Nozzle And Lines >> 13 53... Pressure line leak test

13 53... Pressure line leak test

WARNING: This page is about a different variant/trim than selected.
WARNING:
  • Burn risk!
  • Rotating components (risk of injury!)

Necessary preliminary tasks: 

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.

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

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

Fig 1: Identifying Leak Detector Spray Applying Area Of Screw Connection Of Delivery Line
G04789970Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: No leaks: 
  • Assemble engine
  • Read out fault memory, clear if necessary.

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