Part description

Used cable harness intended for connecting front fog lights. It is an electrical component from the Citroën/Peugeot offer, which many mechanics and home repairers are looking for mainly by original numbers. The markings 9663272880 and 6575Y1 are important for this part.

The bundle is suitable wherever there is a need to replace damaged, broken or non-functioning front fog lamp wiring. In the case of used original parts, the correct design of connectors and cabling without the need for modifications is an advantage.

Technical information

• Manufacturer: Stellantis Citroën Peugeot
• Model: Citroen C4 Picasso, Citroen C4 Grand Picasso first series
• Other numbers: 9663272880, 6575Y1, NFP

Product codes

• Product codes: 9663272880, 6575Y1
• Models mentioned in the documents: Citroen C4 Picasso, Citroen C4 Grand Picasso first series, PEUGEOT 3008 I

Installation recommendations

Generally/typically for this type of part, the exact method of replacement depends on the specific design of the car and the routing of the wiring. For the wiring harness, it is essential to carefully compare the length, connectors, fit and insulation condition with the old piece.

1) Before assembly

• Disconnect the vehicle battery.
• Check the harness used for cracked insulation, broken wires, signs of overheating, or damaged connectors.
• Compare the new and original part according to the shape of the connectors, the length of the wiring and the method of attachment.
• Make sure the contact surfaces are not oxidized or loose.

2) Necessary tools and materials

• Basic set of hand tools
• Plastic pry bar for removing covers
• Work light
• Electrical contact cleaner
• Straps or original grips if needed to secure the line
• Protective gloves

3) Step-by-step assembly procedure

1. Secure the vehicle against movement and disconnect the battery.
2. Remove any necessary covers or trim to gain access to the old volume.
3. Document the original wiring, ideally with a photo before disassembly.
4. Carefully disconnect all connectors of the old harness without force and without pulling on the wires.
5. Release the original harness from the brackets, clips and guides.
6. Compare the dismantled harness with the replacement piece, especially connectors, branching and length.
7. Clean the contacts in the mating pieces if they are dirty or slightly oxidized.
8. Store the replacement bundle in the same route as the original piece to avoid chafing or pinching.
9. Snap the harness into all brackets and attachment points.
10. Connect the individual connectors and check their correct fit.
11. Check that the wiring is not in contact with moving or excessively heated parts.
12. Reinstall all removed covers and trim.
13. Connect the battery and prepare the vehicle for functional inspection.
• 4) Post-assembly checks and functional test verification
  • Turn on the front fog lights and check that they are working properly.
  • Check for dropouts when wiring moves or when covers are closed.
  • After a short ride, check again that the harness is properly secured and not rubbing anywhere.

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

  • Exchanging connectors – always compare the shape and position of the individual branches before connecting.
  • Pulling on the wires instead of the connector – leads to damage to the wiring, always loosen the connectors carefully.
  • Incorrect harness routing – the wiring must be routed the same as the original to avoid fraying.
  • Leaving oxidation on the contacts – check the contacts before assembly and clean if necessary.
  • Insufficient fastening – a loosely guided bundle can damage the vibrations over time.

  Reasons why the part is damaged

  • normal aging of insulation and material
  • moisture, salt and oxidation of electrical contacts
  • mechanical damage to the wiring during disassembly or repair of other parts of the car
  • rubbing of the bundle against surrounding parts due to poor fastening
  • overheating or local short circuit in the wiring
  • damage after a minor accident or impact in the front part of the vehicle
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