Description
Rear Left Lamp for Citroën C4 Grand Picasso
Product Overview
This rear left lamp assembly is designed for the Citroën C4 Grand Picasso. It replaces the original taillight on the left side of the vehicle and restores full rear lighting functions including tail light, brake light and turn signal (when integrated). The unit is suitable for professional fitment in bodyshops as well as for experienced DIY mechanics performing an aftermarket replacement.
Technical Information
- Manufacturer: Citroën (Stellantis)
- Model: Citroën C4 Grand Picasso
- Product Codes: 6350AC
- Other Numbers: OEM Reference 6350AC
Function
The rear left lamp assembly provides essential rear signaling: position/tail light, brake light and turn indicator functionality. In combined assemblies it may also include reverse light and integrated reflectors. Proper operation is critical for road safety and legal compliance.
How To Replace
Replacement of the rear left lamp is straightforward for a trained mechanic or skilled DIYer. Typical procedure:
- Park the vehicle on level ground and switch off the ignition.
- Disconnect the negative battery terminal to avoid short circuits during work.
- Open the tailgate and remove any interior trim panels or access covers to expose the lamp fasteners.
- Remove mounting screws or bolts securing the lamp assembly; keep fasteners for reuse if intact.
- Carefully pull the lamp assembly outward, release any clips, and disconnect the electrical connector(s).
- Fit the new lamp assembly, connect the wiring harness, and check that seals and gaskets sit correctly to prevent water ingress.
- Refit fasteners and trim panels, reconnect the battery, and test all lamp functions (tail, brake, indicator, reverse if applicable).
Installation Recommendations
- Always disconnect the battery before starting to avoid electrical damage.
- Inspect wiring connectors and lamp sockets for corrosion; clean or replace as necessary to ensure reliable contacts.
- Check and replace any damaged seals or gaskets to prevent moisture ingress and premature failure.
- Use correct torque on mounting bolts and avoid over-tightening plastic fasteners to prevent cracking.
- After installation, verify all light functions from both inside and outside the vehicle before road use.
Most Common Reasons For Failure
- Impact Damage: Minor collisions or bumps often crack the lens or deform the housing.
- Moisture Ingress: Failed seals or damaged gaskets allow water or condensation, causing corrosion or short circuits.
- Connector Corrosion: Corroded electrical connectors lead to intermittent operation or complete failure.
- Bulb/LED Module Failure: Individual bulbs or integrated LED modules can fail over time; LEDs usually outlast filament bulbs but are costly to replace individually.
- Wiring Damage: Chafing or rodent damage to harnesses can interrupt signals to the lamp.
Compatibility & Notes
This unit is referenced under product code 6350AC and is intended for the Citroën C4 Grand Picasso left rear position. Always match the physical connector and mounting points before installation. If unsure about fitment, compare the old lamp with this part number and mounting arrangement.
Summary
Replacing a damaged rear left lamp with a correct-fit assembly restores vehicle safety and visibility. This part is suitable for mechanics and knowledgeable DIYers and includes the essential features required for proper rear signaling on the Citroën C4 Grand Picasso.
