Description
Electric window regulator for the left front window for Citroën C4 B7 and DS4. Plastic slider is cracked (common on most cars), but solid and fully functional. Driver’s Door.
Product Overview
This electric window regulator assembly is designed for the left front (driver’s) door of Citroën C4 B7 and DS4 models. It is an OEM-compatible unit carrying the original part references 9802531980 and 9221GR, often listed under Stellantis spare parts for Citroën/Peugeot family vehicles. Ideal for professional workshops and experienced DIYers who search by part number when sourcing replacements.
Key Benefits
- Direct Fit For Driver’s Door: Engineered to match factory mounting points and connector types for straightforward replacement.
- Cost-Effective Repair: Replacing the regulator prevents further damage to the window mechanism and glass guides.
- Part Number Search Friendly: Frequently found in search results by codes 9802531980 / 9221GR.
How It Works And What It Does
The window regulator converts the electric motor’s rotation into vertical movement of the glass via a sliding carrier and guide mechanism. The plastic slider secures the glass to the regulator arm and runs along the guide rail. When the motor operates, the regulator moves the window up or down smoothly—when all components are healthy.
Installation Recommendations
- Safety First: Disconnect the vehicle battery before starting work to avoid short circuits and accidental motor activation.
- Access: Lower the glass to a safe position, remove the door trim and moisture barrier to expose the regulator and motor.
- Removal: Detach the glass from the regulator carrier (support the glass securely), unbolt the regulator and motor assembly, and disconnect the electrical connector.
- Fitment: Install the new regulator, reconnect the electrical connector, loosely fit bolts, then realign the glass and tighten fasteners to manufacturer torque specifications.
- Test: Reconnect the battery, cycle the window several times to verify smooth operation and correct alignment before reassembling the door trim.
- Recommendation: Use appropriate trim tools to avoid damaging clips and seals. If unsure about alignment or electrical checks, have the job performed by a qualified technician.
Common Causes Of Failure
- Worn Or Broken Plastic Slider: Plastic carriers commonly develop cracks from age and repeated use; a cracked slider can still hold but risks splitting completely over time.
- Motor Wear: Brushes and commutator wear reduce motor performance, causing slow or intermittent operation.
- Corrosion And Water Ingress: Moisture inside the door can corrode metal components and electrical connectors, increasing friction and electrical resistance.
- Damaged Cables Or Guide Rails: Frayed cables or bent rails cause binding and uneven movement, accelerating wear on the slider and motor.
- Mechanical Misalignment: Poor previous repairs or impact damage can misalign the window path and overload the regulator.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C4 (B7 / C4 II), Citroën DS4
- Product Codes: 9802531980, 9221GR
- Additional Numbers: –
Why Replace Now?
If the plastic slider is already cracked or the window shows signs of jerky, slow or uneven movement, replacing the regulator early avoids sudden failure that can trap the window in an open position and allow water ingress. Replacing a worn regulator also protects the glass and door internals from further damage.
Notes For Professionals And DIYers
Mechanics and competent DIY enthusiasts will appreciate that this part is commonly sourced by its part number. Follow standard workshop procedures for door disassembly and reassembly, and verify electrical connections and window alignment before finishing. Keep door seals and moisture barriers intact to prevent premature corrosion of the new unit.
