AFIL sensor 3 Citroën Peugeot 9659847380 6590W1

Description

Lane driving sensor AFIL number 3 for CITROEN PEUGEOT
cars
There may be a broken screw that holds the unit to the undercarriage – must be unscrewed

Part description

The AFIL sensor (lane keeping sensor) is an electrical component used in selected Citroën and Peugeot models for the lane keeping function. This particular part is labeled “AFIL sensor 3” and is suitable as a replacement in the event of a failure of the original sensor or damage to the wiring/mounting.

Important note on disassembly: according to available information, it may happen that the screw holding the unit to the undercarriage will be “notched” – in this case it is necessary to unscrew it.

Technical information

• Manufacturer: Stellantis
• Model: Citroën C4; Citroën C4 PICASSO; Citroën C5; Citroen C5 X7; Citroën C6; Peugeot 308; Peugeot 407
• Other numbers: 603.013

Product codes

• Product codes: 9659847380, 6590W1

Installation recommendations

Generally/typically for this type of electrical sensor, the exact procedure and access to the part may vary depending on the specific model and design of the car. Below is a practical procedure that is commonly used when replacing similar sensors.

1) Before assembly (checks of the used part, what to compare with the old part)

• Compare the part numbers on the sensor/label: especially 9659847380 and 6590W1 (possibly also 603.013).
• Check that the connector and pins are not bent, oxidized or pulled.
• Inspect the body of the sensor and the mounts – cracks, deformations, damage to the holder.
• If the original part failed after being exposed to water/salt, also check the mating part of the connector and part of the harness in the vicinity.

2) Necessary tools and materials (in general, without specific extra parts)

• A set of common hand tools (ratchet/bits, screwdrivers)
• Cleaning agent for electrical contacts
• Cutting/penetrating oil (helps with corroded bonding material)
• Tools for solving a damaged screw: hole punch, drills, or screw extractors
• Protective equipment (gloves, glasses)

3) Step-by-step assembly procedure

1. Turn off the ignition and secure the car against movement.
2. Disconnect the battery (this is a typical safe procedure for electrical parts).
3. Ensure access to the sensor (depending on the specific car, it may be necessary to remove covers/undercarriage parts, etc.).
4. Disconnect the electrical connector – release the connector lock without prying.
5. Enable sensor attachment. If the fastener is corroded, use penetrating oil and proceed sensitively.
6. If the screw is “notched” and holding the unit, it must be drilled out (work with glasses, drill the center and work on smaller diameters).
7. Remove the old sensor and clean the seating/mounting surface.
8. Mount the new (used) sensor in the same position as the original piece, without tensioning the wiring.
9. Connect the connector, check that the fuse clicks properly.
10. Put back the dismantled covers/access parts.
11. Connect the battery.
12. Perform a basic function check after switching on the ignition (lights/system messages depending on the car’s equipment).

• 4) Post-assembly checks and test drive/function verification

  • Check that the wiring is not chafed anywhere and the connector holds without play.
  • Verify that there are no warning messages related to the lane keeping system (if the car is equipped) after driving.
  • After the first ride, visually check the attachment and surroundings again (looseness, contact with the wheel/covers).

  5) The most common assembly mistakes + how to avoid them

  • Damage to the connector/pins by forceful disconnection – always release the fuse first.
  • Plucked/cracked screw due to corrosion – use penetrating oil, correct attachment and sensitive procedure; in the event of a problem, prepare a hole.
  • Bad wiring (rubbing on edges/moving parts) – route the harness as factory and secure.
  • Assembly without disconnecting the battery – higher risk of short circuits or error states; it is typically recommended to disconnect the battery.

  Reasons why the part is damaged

  • Corrosion and moisture in the place of assembly and in the connector (oxidation of pins, intermittent connection).
  • Mechanical damage from dirt/flying stones or during unprofessional disassembly.
  • Damaged mount and vibration (loose mount, cracked mount).
  • Problems with the connecting material – rusted screws, “notched” screw during disassembly.
  • Damage to wiring (abrasion, pinching, interference after repair of undercarriage/covers).