fuel

Charcoal Canister

for 2017 Maserati Levante 3.0L V6 Twin Turbo · AWD

Difficulty

Moderate

Time

1.2 h

Tools

Steps

✓Fact-checked. Built from OLP's spec database, then independently fact-checked line by line with every correction applied. Master-tech sign-off by Chris Hackleman is queued. Cross-check torque values against the factory manual, and stop if anything looks unsafe. How our data is made.

Remove and replace the EVAP charcoal canister assembly located in the rear underbody area of the vehicle. This component captures fuel vapor from the tank and prevents emissions.

Warnings

⚠Fuel vapors may be present in the EVAP system. Work in a well-ventilated area away from ignition sources.

⚠The exhaust system may be hot if vehicle was recently operated. Allow 30+ minutes cooldown time.

ℹ️Disconnecting the battery will reset adaptive fuel trims and may cause rough idle for first few drive cycles.

Tools required

Vehicle lift or jack standsEssential

10mm socket and ratchetEssential

13mm socket and ratchetEssential

Torque wrench (5-35 Nm range)Essential

Flathead screwdriver

Pick tool or small hook

Shop towels

Safety glassesEssential

Nitrile gloves

Wire brush or parts cleaner

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Parts

Charcoal canister assembly × 1 — Use OEM specification
Vapor hose O-rings × 3 — Use OEM specification
Mounting grommets (if deteriorated) × 2 — Use OEM specification

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Preparation

Park vehicle on level surface and engage parking brake
If recently driven, allow exhaust system and underbody components to cool completely
Raise vehicle on lift or secure properly on jack stands at all four corners
Disconnect negative battery terminal and wait 2 minutes for system de-energization
Remove rear underbody splash shield if equipped (plastic fasteners)

Procedure

1
Locate charcoal canister assembly
From underneath the vehicle, locate the charcoal canister mounted on the driver's side near the rear suspension, forward of the fuel tank. The canister is a cylindrical black plastic component with multiple vapor lines connected to the top.
2
Disconnect electrical connector
Locate the canister vent valve electrical connector on top of the canister assembly. Press the red safety tab and pull the connector straight up to disconnect. Ensure the connector is moved aside to prevent damage.
3
Release vapor line quick-connect fittings
Identify the three vapor lines connected to the canister: purge line (to engine), vent line (to atmosphere), and tank line (from fuel tank). Press the quick-connect release tabs while pulling each line straight off. Use a pick tool if release tabs are difficult to access. Note the position of each line for reassembly.
4
Remove mounting bracket bolts
Remove the two mounting bolts securing the canister bracket to the underbody using a 13mm socket. Support the canister with one hand while removing the second bolt to prevent it from falling.
Torque spec
Mounting Bolts28 Nm (21 lb-ft)
5
Remove canister from vehicle
Carefully lower the charcoal canister assembly from the mounting location. Tilt and maneuver as needed to clear surrounding components. Inspect the mounting grommets on the bracket; replace if cracked or deteriorated.
6
Inspect vapor line connections
Examine the quick-connect fittings on the vapor lines for cracks or damage. Check the O-rings inside each fitting; replace all O-rings with new ones even if they appear intact. Clean any debris from the line ends using parts cleaner and shop towels.
7
Prepare new canister assembly
Remove protective caps from the new canister ports. Install new O-rings on all three vapor line fittings, lightly lubricating with clean engine oil. Verify the canister vent valve moves freely and is not obstructed.
8
Install new canister
Position the new canister assembly into the mounting location, aligning the bracket holes with the underbody mounting points. Ensure mounting grommets are properly seated. Thread both mounting bolts by hand first to ensure proper alignment.
Torque spec
Mounting Bolts28 Nm (21 lb-ft)
9
Torque mounting bolts
Tighten both mounting bolts to 28 Nm (21 lb-ft) using a calibrated torque wrench. Tighten in a cross pattern if applicable to ensure even clamping force.
Torque spec
Mounting Bolts28 Nm (21 lb-ft)
10
Reconnect vapor lines
Connect each vapor line to its corresponding port on the canister, pushing firmly until an audible click is heard. Verify each connection by pulling back on the line with moderate force. Ensure: purge line connects to port marked 'PURGE', tank line to 'TANK', and vent line to 'VENT'.
11
Reconnect electrical connector
Plug the canister vent valve electrical connector back onto the valve, ensuring it clicks into place. Verify the red safety tab is fully engaged and the connection is secure.
12
Reinstall underbody shield
If removed, reinstall the rear underbody splash shield using the original plastic fasteners. Ensure all fasteners are fully seated to prevent rattling.

Reassembly

Reconnect negative battery terminal and tighten securely
Lower vehicle from lift or jack stands
Start engine and verify no diagnostic trouble codes are present using a scan tool
Check for fuel vapor odors around the canister area during and after initial test drive

Verification

Using a scan tool, verify no EVAP system DTCs are present (P0440-P0459 range)
Perform EVAP system monitor drive cycle if required by scan tool
With engine at operating temperature, verify canister vent valve is operating (audible click when commanded with scan tool)
Inspect all vapor line connections for leaks using a smoke machine if available
Confirm no fuel vapor odors are present during operation

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