Headlight Bulb - Single

This procedure covers the removal and replacement of a single headlight bulb on a 2017 Maserati Levante with 3.0L V6 Twin Turbo engine, requiring partial front-end access and electrical disconnection.

Warnings

Tools required

Parts

• Headlight bulb - D3S Xenon HID or LED (verify type) × 1 — Use OEM specification

Preparation

1. Park vehicle on level surface and engage parking brake
2. Turn off all lights and remove key from ignition
3. Allow headlight assembly to cool for 15 minutes if recently operated
4. Open hood and secure with prop rod
5. Identify which headlight bulb requires replacement (driver or passenger side)

Procedure

1. 1

   Disconnect battery negative terminal
   Locate the battery in the engine compartment. Using a 10mm socket, loosen and remove the negative terminal bolt. Carefully remove the negative cable from the battery post and secure it away from the terminal to prevent accidental contact. Wait 2 minutes for electrical system to discharge.
   Torque spec

   Battery Terminal Bolts7 Nm (5 lb-ft)
2. 2

   Remove engine cover
   Grasp the engine cover firmly at the front corners and pull straight up to disengage the rubber mounting grommets. Set the cover aside in a clean area. This provides access to the headlight service area behind the headlight assembly.
3. 3

   Remove headlight access cover
   Locate the circular or rectangular plastic access cover on the rear of the headlight assembly. Rotate the cover counterclockwise approximately 1/4 turn or remove the retaining screws (depending on design) to release it. Pull the cover straight back to remove.
   Torque spec

   Cover Screws11 Nm (8 lb-ft)
4. 4

   Disconnect bulb electrical connector
   Locate the electrical connector attached to the bulb base. Press the release tab and pull the connector straight back from the bulb. For connectors with retaining screws, remove screws first before disconnecting. Inspect connector for corrosion or damage.
   Torque spec

   Connector Screws4 Nm (3 lb-ft)
5. 5

   Remove bulb retaining mechanism
   Identify the bulb retention system - either a spring wire clip or threaded retaining ring. For spring clip: Press and release the clip ends to disengage. For retaining ring: Rotate counterclockwise to unthread. Remove the retaining mechanism completely.
   ⚠Do not force the retaining mechanism. If resistance is felt, verify correct rotation direction and ensure mechanism is fully disengaged.
   Torque spec

   Bulb Retaining Ring5 Nm (4 lb-ft)
6. 6

   Extract old bulb
   Wearing clean gloves, grasp the bulb base firmly and pull straight back out of the headlight housing. Avoid twisting or tilting the bulb during removal. If bulb is stuck, gently rock it side-to-side while pulling. Inspect the bulb socket for moisture, corrosion, or debris.
7. 7

   Prepare and install new bulb
   Remove new bulb from packaging while wearing clean lint-free gloves. Do not touch the glass envelope. Verify the bulb base orientation matches the socket keying. Insert the new bulb straight into the housing socket, aligning the tabs or notches. Push firmly until fully seated.
   ⚠Ensure the bulb base is fully seated in the socket. Partial insertion will cause poor electrical contact and overheating.
8. 8

   Reinstall bulb retaining mechanism
   Position the retaining ring or spring clip back onto the bulb base. For threaded ring: rotate clockwise until snug to specified torque. For spring clip: compress and engage both clip ends into their mounting slots. Verify the bulb is secured and cannot move.
   Torque spec

   Bulb Retaining Ring5 Nm (4 lb-ft)
9. 9

   Reconnect electrical connector
   Align the electrical connector with the bulb base terminals, ensuring proper orientation. Push the connector firmly onto the bulb until it clicks into place. If equipped with retaining screws, install and tighten to specification. Gently tug on connector to verify secure attachment.
   Torque spec

   Connector Screws4 Nm (3 lb-ft)
10. 10

    Reinstall access cover
    Position the access cover over the opening at the rear of the headlight assembly. Rotate clockwise to lock or install retaining screws to specified torque. Ensure the cover seals properly to prevent moisture intrusion into the headlight housing.
    Torque spec

    Cover Screws11 Nm (8 lb-ft)
11. 11

    Reinstall engine cover
    Position the engine cover over the mounting grommets, aligning all attachment points. Press down firmly on each mounting location until the cover snaps securely into place. Verify the cover is seated evenly.
12. 12

    Reconnect battery
    Position the negative battery cable onto the negative terminal post. Install the terminal bolt and tighten to specified torque using a calibrated torque wrench. Ensure connection is clean and secure.
    Torque spec

    Battery Terminal Bolts7 Nm (5 lb-ft)

Reassembly

1. Verify all access covers and trim panels are properly secured
2. Ensure no tools or parts have been left in the engine compartment
3. Close hood and verify proper latching

Verification

• Turn ignition to ON position (engine off) and activate headlights to verify new bulb illuminates
• Check that headlight beam pattern is correct and bulb is not flickering
• Verify no warning lights appear on instrument cluster related to headlight system
• Perform walk-around inspection to confirm both headlights are functioning properly
• Test high beam operation if that bulb was replaced
• Drive vehicle briefly and recheck headlight operation to ensure no loose connections

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