Oil Pressure Sensor

Replace the oil pressure sensor on the 2017 Maserati Levante 3.0L V6 Twin Turbo engine to restore accurate oil pressure monitoring.

Warnings

Tools required

Parts

• Oil pressure sensor × 1 — Use OEM Maserati specification
• Engine oil (if topping off required) × 1 — Selenia Racing 10W-60

Fluids

• Selenia Racing 10W-60 — 0.5 qt

Preparation

1. Ensure engine is completely cold to the touch (at least 2 hours after last operation).
2. Park vehicle on level ground and engage parking brake.
3. Open hood and secure with prop rod.
4. Disconnect negative battery terminal and wait 5 minutes for system capacitors to discharge.
5. Place oil drain pan beneath work area to catch any oil spillage.
6. Remove engine cover by releasing snap clips and lifting upward.

Procedure

1. 1

   Access the oil pressure sensor
   Locate the oil pressure sensor on the left side of the engine block, below the intake manifold runners. It will have a single electrical connector with a locking tab. You may need to remove or reposition hoses or wiring harnesses for better access. Use extensions and swivel sockets if clearance is limited.
2. 2

   Disconnect the sensor electrical connector
   Press the locking tab on the electrical connector and pull directly away from the sensor. Do not twist or pull on the wires themselves. If the connector is tight, gently wiggle while pulling. Inspect connector pins for corrosion or damage.
3. 3

   Position oil drain pan
   Position the oil drain pan directly below the oil pressure sensor. Expect approximately 0.25-0.5 quarts of oil to drain when the sensor is removed, depending on oil level and engine position. Have shop towels ready to contain spillage.
4. 4

   Remove the old oil pressure sensor
   Using the appropriate socket (typically 22mm or 24mm), carefully loosen the oil pressure sensor by turning counterclockwise. Once loose, quickly unscrew by hand and remove the sensor. Allow oil to drain into the pan for 30-60 seconds. Have a shop towel ready to wrap around the sensor as it comes out.
   ⚠Oil will drain forcefully when the sensor is removed. Keep hands and tools clear of the oil stream.
5. 5

   Inspect and clean the sensor mounting bore
   Once oil drainage has slowed, inspect the threaded bore in the engine block for debris, old sealant, or metal shavings. Use a parts cleaning brush to clean the threads thoroughly. Wipe the surrounding area clean with shop towels. Check that the sealing surface is flat and undamaged.
6. 6

   Prepare the new oil pressure sensor
   Remove the new oil pressure sensor from its packaging and inspect the threads and electrical connector. Apply a thin, even coat of thread sealant (Loctite 577 or equivalent) to the first 2-3 threads of the new sensor. Do not apply sealant to the sensor tip or the last few threads to prevent contamination of the oil system.
   ⚠Use only the recommended thread sealant. Do not use Teflon tape as it can shed particles into the oil system and cause engine damage.
7. 7

   Install the new oil pressure sensor
   Thread the new oil pressure sensor into the engine block bore by hand, turning clockwise. Ensure it threads smoothly without cross-threading. Hand-tighten until the sensor contacts the sealing surface, then use a torque wrench to tighten to specification.
   Torque spec

   Oil Pressure Sensor20 Nm (15 lb-ft)
8. 8

   Reconnect the electrical connector
   Push the electrical connector firmly onto the new oil pressure sensor until you hear and feel the locking tab click into place. Gently tug on the connector to verify it is securely locked. Ensure no wires are pinched or stressed.
9. 9

   Check engine oil level
   Remove the engine oil dipstick and check the oil level. If oil was lost during sensor replacement, add Selenia Racing 10W-60 oil as needed to bring the level to the full mark. Do not overfill. Reinstall the dipstick fully.
10. 10

    Reconnect battery and clear any DTCs
    Reconnect the negative battery terminal. If you have an OBD-II scanner, clear any diagnostic trouble codes that may have been set during the repair. This is optional but recommended to verify no new codes are present after repair.

Reassembly

1. Reinstall engine cover by aligning mounting points and pressing down until snap clips engage fully.
2. Remove oil drain pan and clean any spilled oil from under the vehicle and engine bay.
3. Double-check that all tools have been removed from the engine compartment.
4. Verify that the oil dipstick is fully seated and the oil fill cap is secure.

Verification

• Start the engine and allow it to idle for 2-3 minutes. Monitor the oil pressure gauge on the dashboard to confirm it rises to normal operating range (typically 40-80 psi at idle when warm).
• Visually inspect the new oil pressure sensor for any signs of oil leakage around the threads or mounting surface.
• Turn off the engine and check oil level again after 5 minutes. Top off if necessary.
• If available, use an OBD-II scanner to verify no oil pressure related fault codes are present (P0520-P0524 range).
• Test drive the vehicle and verify that the oil pressure warning light does not illuminate and gauge readings remain stable under various RPM conditions.

Related trouble codes on this vehicle

Codes that commonly send this job to the bay — tap one for symptoms, causes, and diagnostic steps.

Chasing one of these codes and not sure which part is guilty? Ask a master mechanic about YOUR car →

More procedures for this vehicle