EGR Valve

Replacement of the EGR valve on the 2017 Maserati Levante 3.0L V6 Twin Turbo, including removal of heat shields and exhaust components for access.

Warnings

Tools required

Parts

• EGR valve assembly × 1 — Use OEM specification
• EGR valve gasket × 1 — Use OEM specification
• EGR tube gasket × 1 — Use OEM specification
• Heat shield gaskets (if damaged) × 1 — Use OEM specification

Preparation

1. Ensure engine is completely cool to the touch (wait minimum 2 hours after last operation)
2. Disconnect negative battery terminal and wait 2 minutes for system discharge
3. Remove engine cover by pulling up firmly on all four corners
4. Document all electrical connector positions with photos before removal
5. Apply penetrating oil to all exhaust fasteners and allow 15 minutes soak time
6. Raise vehicle on lift or support securely on jack stands for underside access

Procedure

1. 1

   Remove heat shields
   From the engine bay, locate and remove the upper heat shield bolts securing the shield above the EGR valve area. There are typically 3-4 bolts. From underneath the vehicle, remove the lower heat shield sections that cover the exhaust manifold and EGR connection points. Keep all hardware organized by location.
   Torque spec

   Heat Shield Bolts14 Nm (10 lb-ft)
2. 2

   Disconnect EGR electrical connector
   Locate the EGR valve electrical connector on the passenger side of the engine. Press the locking tab and carefully disconnect the connector from the EGR valve. Move the wiring harness aside and secure it away from the work area to prevent damage.
   ⚠The connector locking mechanism is fragile. Do not force or pry the connector.
3. 3

   Remove EGR tube connection
   Locate the EGR tube that connects the EGR valve to the intake manifold. Using a 15mm wrench, loosen and remove the tube fitting at the EGR valve end. The tube may be stiff due to carbon buildup. Once the fitting is loose, carefully separate the tube from the valve and move it aside. Inspect the gasket and replace if damaged.
   ℹ️Carbon deposits may cause the tube to bind. Do not force; use penetrating oil if necessary.
   Torque spec

   EGR Tube Fitting35 Nm (26 lb-ft)
4. 4

   Disconnect exhaust side connection
   From underneath the vehicle, locate the exhaust pipe flange connection to the EGR valve assembly. Remove the flange bolts (typically 2 bolts) connecting the exhaust gas feed pipe to the EGR valve. Support the pipe to prevent stress on other connections.
   ⚠Exhaust flanges may be seized due to heat cycling. Apply additional penetrating oil if bolts resist removal.
   Torque spec

   Flange Bolts50 Nm (37 lb-ft)
5. 5

   Remove EGR valve mounting bolts
   Locate the mounting bolts securing the EGR valve to the engine block or exhaust manifold (typically 3 bolts in a triangular pattern). Using a 13mm socket with extensions, remove all EGR valve mounting bolts. Note the location of any brackets or supports attached to these bolts.
   Torque spec

   EGR Valve Bolts25 Nm (18 lb-ft)
6. 6

   Remove EGR valve assembly
   Carefully work the EGR valve assembly free from its mounting location. It may require slight rotation or angling to clear surrounding components. Once free, remove the valve from the engine bay. The valve will have gaskets on both the intake side and exhaust side connections.
   ℹ️Do not drop the valve as it contains electronic components that can be damaged by impact.
7. 7

   Clean mounting surfaces
   Using a gasket scraper and wire brush, thoroughly clean all mounting surfaces on the engine block, intake manifold connection point, and exhaust flange. Remove all carbon deposits and old gasket material. Ensure surfaces are completely flat and free of debris. Wipe clean with a lint-free cloth. Inspect for cracks or damage.
   ⚠Do not allow debris to fall into open exhaust or intake ports. Cover openings with clean shop towels during cleaning.
8. 8

   Prepare new EGR valve
   Unbox the new EGR valve and verify it matches the original in connector type and mounting configuration. Install new gaskets on both the intake and exhaust sides of the new valve. Do not use sealant on the gaskets unless specifically required by manufacturer. Apply anti-seize compound to all bolt threads that will thread into aluminum or cast iron.
   ℹ️Verify the new valve's part number matches the original to ensure correct calibration for the twin turbo system.
9. 9

   Install new EGR valve
   Position the new EGR valve assembly into place, aligning the mounting holes and ensuring gaskets remain properly seated. Start all three mounting bolts by hand to ensure proper thread engagement. Once all bolts are started, tighten in a cross pattern to the specified torque specification to ensure even gasket compression.
   Torque spec

   EGR Valve Bolts25 Nm (18 lb-ft)
10. 10

    Reconnect exhaust flange
    Position the exhaust gas feed pipe to the EGR valve flange with a new gasket if required. Apply anti-seize compound to the flange bolt threads. Install and hand-tighten both flange bolts, then torque to specification in an even pattern to ensure proper sealing.
    Torque spec

    Flange Bolts50 Nm (37 lb-ft)
11. 11

    Reconnect EGR tube
    Position the EGR tube with a new gasket to the intake manifold side of the EGR valve. Install the tube fitting and hand-tighten. Using a torque wrench, tighten the EGR tube fitting to specification. Ensure the tube is not stressed or kinked.
    Torque spec

    EGR Tube Fitting35 Nm (26 lb-ft)
12. 12

    Reconnect electrical connector
    Route the wiring harness back to the EGR valve. Align the electrical connector and press firmly until the locking tab clicks into place. Gently tug on the connector to verify it is fully seated and locked.
13. 13

    Reinstall heat shields
    Reinstall all heat shield sections in reverse order of removal, starting with lower shields then upper shields. Torque all heat shield bolts to specification. Ensure shields are properly positioned and not contacting moving components or wiring.
    Torque spec

    Heat Shield Bolts14 Nm (10 lb-ft)

Reassembly

1. Reinstall engine cover by aligning mounting grommets and pressing down firmly until all corners seat properly
2. Reconnect negative battery terminal and torque to 13 Nm (10 lb-ft)
3. Lower vehicle from lift or remove jack stands
4. Perform visual inspection of all connections and verify no tools or parts were left in engine bay

Verification

• Start engine and allow to idle for 2 minutes while monitoring for exhaust leaks around EGR connections (listen for hissing sounds)
• Using a scan tool, check for EGR-related fault codes and verify EGR valve communication is present
• Perform a road test including highway speeds to verify proper EGR operation and confirm no check engine light illumination
• With scan tool, command EGR valve open and closed while at idle to verify proper response and no rough idle
• Re-inspect all connections after test drive for any signs of exhaust leaks or loose fasteners
• Clear any stored fault codes and verify no new codes return after a full drive cycle

Related trouble codes on this vehicle

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

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