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General Procedure - Fluid Leak Detection

WARNING: This page is about a different car, the 2020 Jaguar XE and 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM POSSIBLE CAUSES ACTION
  • Fluid leak from the vehicle or a leak is discovered during a routine service
  • Coolant leaks
  • Engine oil leaks
  • Transmission oil leaks
  • Fuel leaks
  • Anti-lock brake system fluid leaks
  • Power steering fluid leaks
  • Climate control system fluid leaks
  • Windshield washer reservoir fluid leaks
  • Visibly damaged or worn parts
  • Follow the service instruction below

SERVICE INSTRUCTION 

NOTE:
  • Slight surface oil dampness without drops are acceptable and should not be repaired as a leak
  • Be aware that fluid leaks from above any component may cause oil to collect on the engine and transmission undershield i.e. engine leaks, oil cooler pipe leaks, fuel leaks, coolant leaks
  • Fixing the incorrect leak does not satisfy the customer
  1. Remove any undershield or engine covers to gain access to the suspected leak area REFER to: TRANSMISSION UNDERSHIELD - PROJECT 8 (G2248771)
  2. Using a suitable degreaser, thoroughly degrease the suspected component all the way around as well as, approximately, 25-50mm (1-2 inches) above the suspected leak
  3. Using a suitable leak detector spray, thoroughly coat the suspected component as well as, approximately, 25-50mm (1-2 inches) above the suspected leak
  4. Install the transmission/engine undershield and engine covers if removed REFER to: TRANSMISSION UNDERSHIELD - PROJECT 8 (G2248771)
  5. Complete a suitable road test and make sure that the engine gets to normal operating 5. temperature
  6. Remove any undershield or engine covers to gain access to the suspected leak area REFER to: TRANSMISSION UNDERSHIELD - PROJECT 8 (G2248771)
  7. Inspect the suspected component for fluid leaks, the detector spray should leave a trace from the leak area
    G13852552Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

    Engine oil leak example graphic. Oil is present between the engine and transmission mating faces, including evidence of oil in the 3 breather holes

  8. Report or repair the source of the fluid leak
  9. If no leak is found, continue diagnosis until the exact source of the leak is found
  10. Install the transmission/engine undershield and engine covers if removed REFER to: TRANSMISSION UNDERSHIELD - PROJECT 8 (G2248771)
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