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Home >> Jaguar >> 2019 >> XF S >> Repair and Diagnosis >> External Pages >> Different car >> Section 257 (Engine System - General Information -- XE/(760)) >> Engine System - General Information >> Diagnosis And Testing >> Engine - INGENIUM I4 2.0L Diesel (G1829963) >> Symptom Charts >> Fluid Leaks

Fluid Leaks

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
Coolant leak - External
  1. Cooling system hose(s) damaged
  2. Expansion tank damaged
  3. Radiator damaged
  4. Casings damaged
  5. Seal(s) leaking
  1. Refer to the relevant article of the repair information and check the cooling system. Rectify as necessary
NOTE: This may be indicated by the emission of white smoke from the exhaust
Coolant leak - Internal
  1. Seal(s) leaking
  2. Casings damaged
  1. Check for cross contamination of the coolant and the engine oil. Check for exhaust gases emissions through the expansion tank. Refer to the relevant article of the repair information and check the cooling system. Rectify as necessary
Engine overheats
  1. Insufficient coolant
  2. Insufficient oil
  3. Pressure cap fault
  4. Electric thermostat not opening
  5. Variable coolant pump failure
  6. Cooling fan failure
  7. Coolant pump drive belt misaligned
  1. Check the coolant level and condition. Perform a cooling system pressure test. Rectify any leaks as necessary. Check the electric thermostat and rectify as necessary. Check the cooling fan operation - make sure that the cooling fan rotates freely. Check the coolant pump drive belt is secure/correctly aligned so as to provide sufficient drive to the coolant pump. If the coolant pump belt is found to be misaligned or damaged, it must be REPLACED Refer to: ACCESSORY DRIVE BELT Check for obstructions to the air flow through the radiator. Using the Jaguar Land Rover approved diagnostic equipment. Rectify as necessary
Engine takes too long to reach normal operating temperature
  1. Thermostat stuck open
  1. Check the operation of the thermostat. Rectify as necessary
Oil leaks - External
  1. Seal(s) leaking
  2. Oil pipes leaking
  3. Oil filter leaking
  4. Oil cooler leaking
  5. Casings damaged
  6. Crankcase ventilation system blocked/leaking
  7. Piston ring blow-by
  1. Clean and confirm the area of the leak. Check the visual condition of oil carrying components. Refer to the relevant article of the repair information and check the crankcase ventilation system. Perform a compression test: Refer to: ENGINE OIL VACUUM DRAINING AND FILLING
NOTE: This may be indicated by the emission of blue smoke from the exhaust
Oil leaks - Internal (leaks into the coolant or the combustion chamber)
  1. Seal(s) leaking
  2. Casings damaged
  3. Valve guides worn
  4. Cylinder bores/piston rings worn
  5. Piston rings broken
  1. Check for traces of oil in the coolant. Check for evidence of oil in the combustion chambers (deposits on the glow plugs, etc). Confirm oil consumption and vehicle usage with the owner/driver. Perform an oil consumption test: GO to PINPOINT TEST A .

Crankshaft Rear Oil Seal Inspection 

NOTE: Slight surface oil dampness without drops are acceptable and should not be repaired as a leak.
  1. Remove the engine and/or transmission undershield(s) to gain access to the engine and transmission mating area REFER to: REAR UNDERSHIELD - PROJECT 8 (G2269180)
    NOTE: Allowing the vehicle to stand for 1 hour will allow any oil to drop to the bottom of the transmission housing.
  2. Make sure the engine is switched off and allow the vehicle to stand for 1 hour before proceeding to the next step.
    NOTE:
    1. Make sure that any Noise, Vibration and Harshness (NVH) pads are peeled back to clean off any oil residue that may have seeped underneath.
    2. Make sure that the degreaser is sprayed in to the 3 breather holes between the mating faces to make sure the inside of the transmission housing is clean.
    3. Make sure the undershield(s) are cleaned of any oil residue.
  3. Clean the mating faces of the engine and transmission using a suitable degreaser.
    G13894101Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

    Using a suitable rag, wipe the engine and transmission, removing any remaining oil residue and degreaser.

  4. Using a suitable leak detection spray, thoroughly coat the engine and transmission mating area.
  5. Remove the vehicle from the ramp and allow the vehicle to idle for 10 minutes.
  6. Increase the engine speed to 2000 Revolutions Per Minute (RPM) for 30 seconds and return to idle.
  7. Allow the vehicle to idle for 10 minutes.
  8. Switch off the engine and leave the vehicle to stand for 1 hour.
  9. Place the vehicle back onto a suitable ramp and re-inspect for signs of leakage.

Crankshaft Rear Oil Seal Inspection Example Images. 

The image below shows an OK condition; no visible evidence of oil. No crankshaft rear oil seal inspection test required.

G13894102Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

The image below shows a not OK condition; the oil is a light brown color and is sticky to the touch. This can indicate an excess amount of shipping wax. Crankshaft rear oil seal inspection test required.

G13894103Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC

The image below shows a not OK condition; Oil is present between the engine and transmission mating faces, including evidence of oil in the 3 breather holes. Crankshaft rear oil seal inspection test required.

G13852552Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC
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