Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJAGUAR1991XJ-6 L6-4.0LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGSERVICE AND REPAIRGENERAL SYSTEM PROCEDURESOIL LEVEL CHECKSANDEN COMPRESSOR
1991 Jaguar XJ-6 L6-4.0L
Sanden Compressor
1991 Jaguar XJ-6 L6-4.0LSECTION Sanden Compressor
Oil Level Check - Sanden Compressor
NOTE: Whenever a component has been replaced in the refrigerant system or there is an obvious oil leak, the compressor oil level should be checked.
1. Determine the angle the compressor is mounted.

2. Remove the oil filler plug. Look through the oil filler plug hole and rotate the clutch front plate to position the internal components.
3. Center the components as they are moving to the rear of the compressor (the discharge stroke). This is necessary to allow the dipstick to penetrate fully.

4. Insert the dipstick to its stop position (the stop is the angle near the top of the dipstick 3). The point of the angle must be towards the engine with the bottom surface of the angle flush with surface of the filler hole.

5. Reference the chart for the correct oil level for the mounting angle of the compressor.
NOTE: If the increment indication on the dipstick does not match the table, add or subtract oil to the mid point value.
6. Refit the oil filler plug checking that the "O" ring seal is not twisted. Ensure that the "O" ring seal and the seat are clean.
7. Torque the plug to 6-9 ft lb (0.8-1.2 kg/m). Do not over tighten the plug to stop a leak. Remove the plug and fit a new "O" ring seal.
NOTE: It is not necessary to check the oil level as a routine maintenance. However, should there be a good reason to suspect an incorrect oil level because of leaks, the level should be checked.
NOTE: Whenever a component has been replaced in the refrigerant system or there is an obvious oil leak, the compressor oil level should be checked.
1. Determine the angle the compressor is mounted.
2. Remove the oil filler plug. Look through the oil filler plug hole and rotate the clutch front plate to position the internal components.
3. Center the components as they are moving to the rear of the compressor (the discharge stroke). This is necessary to allow the dipstick to penetrate fully.
4. Insert the dipstick to its stop position (the stop is the angle near the top of the dipstick 3). The point of the angle must be towards the engine with the bottom surface of the angle flush with surface of the filler hole.
5. Reference the chart for the correct oil level for the mounting angle of the compressor.
NOTE: If the increment indication on the dipstick does not match the table, add or subtract oil to the mid point value.
6. Refit the oil filler plug checking that the "O" ring seal is not twisted. Ensure that the "O" ring seal and the seat are clean.
7. Torque the plug to 6-9 ft lb (0.8-1.2 kg/m). Do not over tighten the plug to stop a leak. Remove the plug and fit a new "O" ring seal.
NOTE: It is not necessary to check the oil level as a routine maintenance. However, should there be a good reason to suspect an incorrect oil level because of leaks, the level should be checked.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.