Engine and peripherals

Draining the fuel tank

~3min read

K4J or K4M

Essential special tools

Mot. 1311-08 Fuel pressure test connector
Required tools
pneumatic fuel tank transfer pump for petrol or diesel
WARNING

During this operation, it is essential to:

  • not smoke or bring hot objects near the work area,
  • protect yourself against fuel spray caused by residual pressure in the pipework,
  • protect areas sensitive to fuel flow.

DRAINING THE FUEL TANK

K4J

Vidange du réservoir à carburant
  • Disconnect the fuel supply fitting (1).
  • Fit a "T" fitting (3) in its place (Mot.1311-08).
  • Fit a hose (2) of sufficient length to the outlet of the "T" fitting so that the pump discharges into a container.

WARNING: It is essential to switch off the ignition for this operation.

K4M

Vidange du réservoir à carburant
  • Disconnect the fuel supply fitting (1).
  • Fit a "T" fitting (3) in its place (Mot.1311-08).
  • Fit a hose (2) of sufficient length to the outlet of the "T" fitting so that the pump discharges into a container.

WARNING: It is essential to switch off the ignition for this operation.

  • Remove the cover from the protection and switching unit.
Vidange du réservoir à carburant
  • Move the electrical connector (4) aside without disconnecting it.
Vidange du réservoir à carburant
  • Disconnect the brown connector (6) from the protection and switching unit.
Vidange du réservoir à carburant
  • Connect terminal (5) of the brown connector to battery + to run the fuel pump.
  • Let the fuel drain until it starts to flow intermittently.
  • Disconnect the battery + from terminal (5).
Note: A pneumatic fuel tank transfer pump for petrol or diesel (see Equipment catalogue) may also be used. It must be fitted to the "T" fitting (Mot. 1311-08) (see Draining the fuel tank F9Q, K9K).

F9Q or K9K

Essential equipment

pneumatic fuel tank transfer pump for petrol or diesel
WARNING

During this operation, it is essential to:

  • not smoke or bring hot objects near the work area,
  • protect yourself against fuel spray caused by residual pressure in the pipework,
  • protect areas sensitive to fuel flow.

DRAINING THE FUEL TANK

Vidange du réservoir à carburant
Note: Diesel vehicles have no electric fuel pump, so the pneumatic fuel tank transfer pump for petrol or diesel must be used to drain the tank.
  • Lift the rear seat cushion.
Vidange du réservoir à carburant
  • Remove the carpet retaining clip.
  • Pull back the carpet
Vidange du réservoir à carburant
  • Remove:
  • the four screws (1) of the cover plate,
  • the cover plate,
  • the cap (2) of the inspection opening.
Vidange du réservoir à carburant
  • Disconnect
  • the connector (3) of the fuel gauge sender,
  • the connector (4) of the ride height sensor (if fitted),
  • the fitting (5).
  • Provide for fuel drainage.
  • Connect the rubber hose of the pneumatic pump to the outlet of the suction unit.
  • Drain the fuel tank.

Test yourself

A quick Renault Megane quiz: every answer comes with an explanation and a link to the manual page.