This seat height adjustment control is an OEM-style electric switch/assembly for the driver seat of the Peugeot 406. It allows precise up/down adjustment of the seat height and is a direct replacement for worn or damaged original units. Ideal for professional workshops and competent DIY mechanics, the unit is often searched by part numbers (9616709377, 8920T5, 8920W1) — include these codes when ordering to improve compatibility matching.

Technical Information

• Manufacturer: Stellantis (Peugeot / Citroën Group)
• Model: Peugeot 406 (Driver Side Seat)
• Product Codes: 9616709377, 8920T5, 8920W1
• Other Numbers: NFP (as provided)
• Color: FZL – Gray Ouragan

Compatibility

Primarily Designed For Peugeot 406 Driver Side Seats. Always match the listed product codes with the part you are replacing — the same part numbers are commonly used when searching online or cross-referencing parts catalogs.

Function

The control operates the electric motor or actuator that raises and lowers the driver seat cushion. It routes switch commands to the seat motor via the seat wiring harness and connector, providing stepped or proportional movement depending on the seat mechanism. Proper operation restores ergonomic seating position and safe driving posture.

How To Replace

Suitable For Experienced DIY Mechanics And Professional Technicians. Typical Replacement Steps:

• Disconnect The Battery Before Starting Work To Avoid Short Circuits And Airbag/Seat Controller Issues.
• Move The Seat To Its Highest/Front Position To Access Trim Panels And Screws.
• Remove Side Trim Covers To Expose The Switch Assembly And Electrical Connector.
• Unplug The Connector Carefully, Then Remove Fasteners Holding The Switch/Module In Place.
• Fit The New Unit, Reconnect The Connector, Reassemble Trim And Test All Seat Functions Before Finalizing.

Installation Recommendations

• Use Correct Fasteners And Avoid Over-Tightening To Prevent Breakage Of Plastic Components.
• Inspect Wiring And Connectors For Corrosion Or Damage; Repair Any Faulty Wiring Before Installing The New Unit.
• Test Seat Movement While The Car Is Still Accessible To Confirm Correct Operation.
• If The Seat Has Integrated Safety Systems (Airbag Or Occupancy Sensors), Follow Manufacturer Procedures When Disconnecting/Reconnecting To Prevent Fault Codes.

Why This Part Most Often Fails

Common Failure Causes Include Mechanical Wear Of Internal Switch Contacts, Broken Plastic Actuators Or Mounting Tabs, Water Or Dirt Ingress Causing Corrosion, And Wiring Or Connector Damage From Seat Movement. Frequent Adjustments Over Many Years Accelerate Wear, And Spills Or Moisture Are Frequent Contributors To Electrical Faults.

Notes For Buyers

Search Using Any Of The Supplied Part Numbers (9616709377, 8920T5, 8920W1) To Quickly Find Matching Units. This Description Focuses On The Driver Side Seat Height Adjuster For Peugeot 406; Verify That The Color/Trim Code (FZL – Gray Ouragan) Matches Your Interior When Aesthetic Match Is Important.

Order Now Using The Part Codes Above To Ensure You Receive The Correct Replacement Unit For Professional Or DIY Seat Repair And Restoration.

This genuine-style driver-side electric seat height control is designed for Citroën Xsara and Xantia models and is often searched under part numbers 9608371177 or 8920K3. The unit operates the vertical adjustment of the driver seat, restoring comfortable seating position and proper ergonomics. Ideal For Professional Workshops And Experienced DIYers — the switch/module is a common replacement on higher-mileage vehicles where repeated use, moisture ingress or connector wear cause intermittent or complete loss of function.

Key Features

• Direct Fit For Driver Side Seat Height Adjustment On Citroën Xsara And Xantia
• Color: FZL – Ouragan Gray (Trim And Switch Bezel)
• Replaces Units With Product Codes 9608371177, 8920K3
• Restores Smooth Up/Down Seat Movement And Reliable Electrical Switching

Technical Information

• Manufacturer: Citroën (Stellantis)
• Model: Citroën Xsara, Citroën Xantia
• Product Codes: 9608371177, 8920K3
• Other Numbers: NFP
• Position: Driver Side
• Color: FZL – Ouragan Gray

Installation Recommendation

Recommended For Professional Installation Or For Those Comfortable Working With Interior Trim And Vehicle Electrical Systems. Typical Replacement Steps:

1. Disconnect The Vehicle Battery Before Starting Work To Avoid Short Circuits Or Unwanted Airbag/System Faults.
2. Move The Seat To A Position That Gives Access To The Side Trim Panel.
3. Remove The Side Trim Using Trim Tools To Avoid Damage To Clips And Panels.
4. Unscrew The Fasteners Securing The Switch/Module And Carefully Unplug The Electrical Connector(s).
5. Fit The Replacement Control, Reconnect The Connector, And Test Seat Height Adjustment Functionality Before Reassembling Trim.
6. Reassemble Panels Securely And Verify All Functions At Different Seat Positions.

Tools Typically Required: Trim Removal Tools, Torx/Screwdriver Set, Ratchet. Follow Manufacturer Procedures And Fastening Torques Where Specified.

Why This Part Fails Most Often

• Wear From Frequent Use: Mechanical Contacts And Internal Switch Mechanisms Degrade Over Time, Especially On High-Mileage Vehicles.
• Connector Corrosion Or Poor Contact: Moisture Penetration Or Oxidation At The Electrical Connector Causes Intermittent Operation Or Complete Failure.
• Physical Damage: Impact Or Excessive Force On The Trim/Switch Area Can Crack The Switch Housing Or Break Internal Components.
• Motor Or Gear Wear In The Seat Mechanism: In some cases, the seat motor or gears cause increased load on the switch, accelerating switch failure.

Practical Notes For Mechanics And DIYers

When sourcing this part, include the product codes 9608371177 and 8920K3 in your search to improve findability. Inspect The Connector Pins And Wiring Harness For Corrosion Before Installing The New Unit — Cleaning Or Repairing The Connector Can Prevent Repeat Failures. Test The New Unit Before Final Reassembly To Ensure Proper Function.