Description
Complete electric rear lid glass lock for CITROEN C5 I and II COMBI cars
Part description
This rear lid glass lock is designed for Citroën C5 I and II Estate cars and is used to securely lock/unlock the independently opening rear glass. It is an electrical part of the bodywork that must work properly with the lock control and ensure safe closing without arbitrary permission.
If you are dealing with a malfunctioning unlocking of the glass, unreliable locking or a closing problem, replacing the lock is usually the fastest way to restore proper function.
Technical information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C5 I and II COMBI
- Other numbers: 8724A0, 871971, NFP
Product codes
- Product codes: 661527, 8724A0, 871971
Installation recommendations
Generally/typically for this type of part, replacement takes place within the back cover and requires access to the lock mechanism and its electrical connector. The exact steps may vary depending on the car model.
1) Before assembly
- Compare the new and original piece: lock shape, attachment, latch position and connector type/code.
- Check the condition of the used part: plastic cracks, loose parts, contact corrosion, damage to the wiring at the connector.
- Make sure you have the correct product codes (eg 661527 / 8724A0 / 871971) matching your original part.
2) Necessary tools and materials
- Normal set of screwdrivers and bits (according to the fasteners used)
- Plastic crowbar for removing upholstery/covers
- Pliers (for clips/clips)
- Electrical contact cleaner (recommended)
- Work gloves and light
3) Step-by-step assembly procedure
- Turn off the ignition and disconnect the battery (typically to protect the electrical and avoid a short circuit).
- Open the back cover to gain safe access to the inside of the cover.
- Remove the inner cover/lid trim to access the lock area (careful not to break the clips).
- Locate the glass lock and disconnect the electrical connector (or release the connector fuse).
- Check the cable routing and clamps – loosen them so that the cables do not get in the way when the lock is pulled out.
- Undo the lock fasteners (screws/mounts) and remove the lock.
- Compare the old and new piece one more time “on the table” – especially orientation and seating surfaces.
- Mount the lock in place, seat it straight, and tighten the fasteners appropriately to avoid cracking the brackets.
- Connect the electrical connector; it is recommended to treat the contacts with a cleaner if they are dirty.
- Check that the wiring is not in tension and is not rubbing against edges or moving parts anywhere.
- Before installing the upholstery, briefly check the function (after re-connecting the battery) – locking/unlocking and the correct “snap” of the glass.
- Refit the inner cover/upholstery and all clips/clips.
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4) Post-assembly checks and test drive/function verification
- Check that the glass can be closed smoothly and the lock holds securely.
- Retry the lock/unlock and unlock function.
- Check if there are any rattling noises from the lid (loose lock, badly seated cover).
5) The most common assembly mistakes + how to avoid them
- Broken upholstery clips → use a plastic pry bar and proceed in sections.
- Incorrectly clicked connector → after connecting, gently pull the connector to make sure it is locked.
- Pinched or stretched wiring → route the cables to the original mounts and check the clearance when the lid moves.
- Bad seat of the lock → before final tightening, align the lock and verify smooth closing of the glass.
Reasons why the part is damaged
- Wear of the lock mechanism due to frequent use (latch, springs, guide).
- Moisture and corrosion in the area of the back cover, deterioration of contacts and mechanisms.
- Pollution (dust, salt) causing stuttering and higher resistance when locking.
- Shocks and improper closing of the rear glass (sudden banging, misalignment).
- Electrical fault in the connector/cabling (loose pins, broken wires in the bend of the lid).
