Description
Product Overview
This bulb socket, part number 634679, is a direct replacement for the rear light cluster on PSA vehicles. It secures the bulb electrically and mechanically, restoring reliable rear lighting for Citroën Berlingo and Peugeot Partner models. Designed for professional workshops and knowledgeable DIYers seeking a correct-fit part.
Installation & Fitment
Replacement is straightforward with common tools. Typical procedure:
- Open the tailgate and remove the interior trim to reach the rear lamp assembly.
- Unscrew or unclip the lamp cluster and pull it out slightly to access the socket.
- Disconnect the wiring harness and remove the old bulb holder or socket (twist/pull as required).
- Install part 634679 ensuring correct orientation and firm contact, reconnect the wiring and test the lamp function.
- Reassemble the cluster and interior trim.
Common Failure Modes
Socket failure is commonly caused by contact corrosion, thermal cycling from repeated bulb heating, mechanical damage during bulb changes, or plastic ageing. Symptoms include intermittent lighting, poor contact, or no light at all. Replacing the socket eliminates unreliable connections and reduces the risk of electrical faults.
Technical Information
- Manufacturer: PSA (Citroën/Peugeot)
- Model: Citroën Berlingo I & II; Peugeot Partner I & II
- Product Codes: 634679
- Other Numbers: N/A
Keywords: bulb socket, rear light, lamp holder, 634679, Citroën, Peugeot, Berlingo, Partner, replacement. Order the correct part number to ensure fitment and avoid installation delays.
