Description
Window And Mirror Switch Citroën C4 II B7, DS4 – Driver’s Door. Fully Functional – Shows Signs Of Use. Color HZD- – Black Mistral.
Product Overview
High-quality used driver door switch assembly designed for Citroën C4 II (B7) and DS4 models. This unit operates the driver’s window and provides mirror adjustment control (and mirror folding where the vehicle is equipped). Ideal for mechanics and DIY enthusiasts looking for a direct-fit replacement with original equipment (OE) references. Frequently searched by part numbers 96657055ZD and 6490JW.
Why Choose This Switch
- Direct Fit For Citroën C4 II (B7) And DS4 Driver Door Applications.
- Original Equipment Style Functionality For Smooth Window And Mirror Control.
- Used Unit In Fully Functional Condition — Cost-Effective Alternative To New Parts.
- Commonly Identified By OE Codes 96657055ZD And 6490JW, Making It Easy To Find.
Technical Information
- Manufacturer: Stellantis (Citroën)
- Model(s): Citroën C4 II (B7), DS4 — Driver Door
- Product Codes: 96657055ZD, 6490JW
- Additional Numbers: HZD- (Color Code) — Black Mistral
Function And Typical Failure Modes
This module controls the electric window motor for the driver’s side and the electric mirror adjustment; on some vehicles it also controls mirror folding and central locking signals. Failures typically occur due to normal wear of the microswitch contacts, contamination from moisture or dirt, or mechanical wear of the rocker/button assemblies. Intermittent operation or complete loss of function are the usual symptoms. Poor electrical connection at the connector or corroded pins can also cause faults.
Expected Service Life
Service life depends on use and environment. With regular use and normal conditions these switch assemblies commonly remain serviceable for many years; heavy daily use or exposure to moisture and dirt accelerates wear. Typical useful life often ranges across many years (commonly cited in practice as around 8–15 years depending on vehicle use and maintenance).
Installation Recommendations
- Disconnect The Battery Before Starting Work To Avoid Short Circuits And Prevent Damage To Vehicle Electronics.
- Remove The Door Panel Carefully: Pry Off Trim Clips Gently, Unscrew Fixings, And Release The Panel From The Door Frame Without Forcing Plastic Tabs.
- Unplug The Electrical Connector(s) From The Switch Assembly And Remove Mounting Screws Or Clips Holding The Unit In Place.
- Fit The Replacement Switch, Reconnect The Connector(s) Securely, And Reassemble The Door Panel.
- After Reinstallation, Reconnect The Battery And Test All Functions: Window Up/Down, Mirror Adjustment, And Folding (If Equipped).
- Check For Smooth Mechanical Movement And Stable Electrical Operation; Clean Connector Pins If Corrosion Is Present.
Most Common Reason For Failure
The Most Frequent Cause Of Failure Is Wear Of Internal Switch Contacts And Contamination (Moisture/Dirt). Repeated Use Leads To Contact Pitting And Mechanical Degradation Of Buttons, Which Results In Intermittent Or Non-Functional Controls. Damaged Wiring Or Connector Corrosion Are Secondary Common Causes.
Compatibility And Fitment Notes
Fits Driver Door Applications On Citroën C4 II (B7) And DS4 Models Corresponding To The Listed OE Codes. Always Verify The Part Numbers Printed On The Unit Against Your Vehicle’s Existing Part To Ensure Direct Compatibility.
Additional Advice
When replacing a used switch, inspect the door harness and connector for corrosion or damaged wires. If windows or mirrors behave unpredictably after swap, recheck connector seating and ground continuity. For complex electrical faults, a wiring diagnosis by a professional may be necessary.
