This Continental Start-Stop inverter unit is designed for Citroën and Peugeot vehicles equipped with start-stop technology, enabling fuel savings and reduced emissions by managing the engine restart cycle. It is suitable for professional workshops and experienced DIY mechanics who search by OE numbers such as 9678342280 or 9678292180. The unit controls the transition between engine off and engine on states, ensuring smooth restarts and coordinating with the vehicle electrical system and battery management.

Technical Information

• Manufacturer: Continental
• Model: Start-Stop Inverter Unit
• Product Codes: 9678342280, 9678342280-00, 9678292180, 9678292180-00
• Additional Numbers: 9678273280, 9805721280
• Compatible Models: Citroën Berlingo B9, Citroën C4, Citroën C4 Picasso, Jum, Peugeot 208, Peugeot 308, Peugeot Partner III

Function

The inverter unit manages the electrical and control logic required to perform engine stop and restart sequences. It communicates with the engine control module and vehicle battery management to cut fuel and ignition during stops and to provide a reliable restart when the driver releases the brake or presses the accelerator. Proper function reduces idling fuel consumption and lowers CO2 emissions while maintaining user comfort.

Common Failure Causes

• Moisture Ingress And Corrosion: Exposure to water or road salts can corrode connectors and internal components.
• Thermal Stress: Repeated heat cycling accelerates wear of electronic components and solder joints.
• Electrical Overstress: Voltage spikes from a weak battery, faulty alternator, or jump-starting can damage the inverter electronics.
• Connector Or Wiring Damage: Loose or corroded connectors cause intermittent faults and communication errors.

Replacement And Installation

General replacement steps for experienced technicians or competent DIYers:

• Ensure Vehicle Is Safe: Park on a level surface, engage parking brake, and follow shop safety procedures.
• Disconnect Battery: Always disconnect the negative battery terminal before starting work to prevent short circuits and protect electronics.
• Access The Unit: Remove any protective covers or trim blocking access to the inverter unit. Keep fasteners organized.
• Unplug Connectors: Carefully release all electrical connectors and note their positions. Inspect connectors for corrosion or damage.
• Remove Mounting Fasteners: Unbolt the unit and lift it clear. Compare the replacement unit with the original to verify matching part numbers.
• Install New Unit: Fit the unit, secure mounting bolts to their original locations, and reconnect electrical plugs firmly.
• Reconnect Battery And Check: Reconnect the battery, clear any stored fault codes if present, and perform a functional test of the start-stop system.

Recommendation For Installation

Always Disconnect The Battery Before Work. Clean And Inspect Connectors; Apply Suitable Contact Protection If Needed. Verify Vehicle Electrical Health—Battery State Of Charge And Charging System Condition—Before Assuming Unit Failure. After Installation, Monitor For Fault Codes And Start-Stop Behavior; Some Vehicles May Require Initialization Or Adaptation Using A Diagnostic Tool.

Reason Why The Part Most Often Fails

In practice, failures are most commonly caused by environmental exposure (moisture and corrosion) and electrical stress related to aged batteries or charging system faults. Preventive checks of the battery condition and ensuring clean, dry electrical connections will extend the life of the inverter unit.

Description

This Start-Stop unit bracket is a direct-fit mounting support designed for Citroën, Peugeot and DS models. It secures the Start-Stop control module in its original position, preventing vibration, movement and connector stress. The part is commonly searched by its OEM reference 9672696280 and is intended for use by professional technicians and competent DIY mechanics performing repairs or replacements on the Start-Stop system.

Why This Part Matters

A correctly fitted bracket keeps the Start-Stop module stable and protects electrical connections from fatigue and accidental damage. Replacing a worn or broken bracket restores proper alignment, reduces intermittent electrical faults and helps avoid extra strain on wiring and connectors when the vehicle is in motion.

Features And Benefits

• OEM Reference Compatibility: Matches original mounting points for a secure fit.
• Durable Construction: Built to withstand engine-bay vibration and temperature cycles.
• Quick Replacement: Simple mechanical part that reduces service time compared with full module replacement.
• Cost-Effective Repair: Replaces only the mounting hardware when the control unit itself is sound.

Fitment (Typical Models)

Commonly fitted to a range of Stellantis group vehicles including:

• Citroën Berlingo B9
• Citroën C4
• Citroën C4 Picasso
• DS Models (selected variants)
• Peugeot 208
• Peugeot 308
• Peugeot Partner III

Technical Information

• Manufacturer: Stellantis
• Model: Citroën / Peugeot / DS (see Fitment list)
• Product Codes: 9672696280
• Other Numbers: Not Available

Recommended Installation

For safe and reliable replacement follow these steps and recommendations:

• Disconnect The Battery Before Work: Always isolate the battery before beginning to prevent electrical damage or short circuits.
• Access The Mounting Location: Remove relevant interior trim or engine-bay covers to reach the Start-Stop unit and its bracket—keep fasteners organized for reassembly.
• Support The Control Unit: When removing the bracket, support the Start-Stop module so connectors and wiring are not strained.
• Fit And Secure The New Bracket: Align the bracket to original mounting points and torque fasteners to manufacturer recommendations. Reconnect any connectors and restore trim panels.
• Verify Operation: After reconnection, check Start-Stop system proper function during a controlled test drive or engine run-up sequence.

Common Failure Causes

• Mechanical Fatigue: Plastic or metal mounting points can crack or deform over time due to vibration and thermal cycling.
• Impact Damage: Accidental impacts during repairs or collisions can break the bracket.
• Corrosion And Wear: Road salt and moisture can corrode fixing points or fasteners, leading to looseness.
• Improper Previous Installation: Over-tightening or misalignment from earlier repairs can weaken the part and stress the control unit.

Notes For Professionals And DIYers

Searches for this part are frequently performed by OEM number (9672696280). Replacing the bracket is a cost-effective measure when the Start-Stop control unit itself is functioning correctly. If you observe intermittent Start-Stop faults after bracket replacement, inspect connector seating, wiring harness condition and grounding points before concluding the control module is defective.

Looking for a reliable and high-quality Start/Stop Switch for your Citroen or Peugeot vehicle? The Start/Stop Switch we offer is the perfect solution for Citroen C3, C4, and Peugeot 208, 308, 508 models. This part is crucial for the proper functioning of the Start/Stop system, which helps reduce fuel consumption and emissions by automatically shutting off and turning on the engine when the vehicle is stationary, such as at traffic lights or in traffic jams.

With our switch, you not only get a product that has undergone thorough inspection and is ready for installation but also save significant costs compared to purchasing a new part. The included wiring harness ensures that the installation process is smooth and quick, appreciated by both professional mechanics and DIY enthusiasts.

Technical Information:

• Manufacturer: PSA CITROEN PEUGEOT
• Model: Citroen C3, C4, Peugeot 208, 308, 508
• Product Codes: 9807709080
• Other Numbers: Not available

This product is designed for vehicles equipped with the Start/Stop system and is compatible with various Citroen and Peugeot car models listed above. Regular replacement ensures that your vehicle’s Start/Stop system operates efficiently without unnecessary issues.

If you have any questions regarding compatibility or installation, do not hesitate to contact our customer service, where we will be happy to provide additional information and assist you in choosing the right part for your car.

Investing in a quality used part like this Start/Stop switch not only saves you money but also enhances the reliability and long-term performance of your vehicle.

This Continental high-capacity START-STOP capacitor is engineered to support the Start-Stop system on a range of Citroën and Peugeot models. Designed for professional workshops and experienced DIYers, the unit stabilizes voltage during engine-off phases, supplies the energy needed for rapid restarts and reduces strain on the starter and battery. Commonly searched by OEM part numbers, this capacitor is a direct-fit replacement that helps restore reliable Start-Stop operation and smooth electrical performance.

Key Benefits

• Improves Start-Stop reliability by providing an energy reservoir for quick engine restarts.
• Reduces wear on the starter motor and battery by smoothing voltage peaks.
• Direct replacement for affected Citroën and Peugeot models—often located by OEM part number searches.
• High-quality Continental component designed for automotive electrical systems.

Compatibility

Typical applications include, but may not be limited to: Citroën Berlingo (B9), Citroën C4, Citroën C4 Picasso, Citroën Jumpy (JUM), Peugeot 208, Peugeot 308 and Peugeot Partner III. Always confirm the correct OEM part number for your vehicle before ordering.

Technical Information

• Manufacturer: Continental
• Model(s): Citroën Berlingo B9; Citroën C4; Citroën C4 Picasso; Citroën Jumpy; Peugeot 208; Peugeot 308; Peugeot Partner III
• Product Codes: 9677002780; 9801739380; 9852039780
• Additional Numbers: OEM reference numbers used by Stellantis group (see product codes above)

Function And Operation

The Start-Stop capacitor acts as a high-capacity energy reservoir that supports the vehicle’s electrical system during engine-off intervals. It supplies the instantaneous current required for a restart and helps maintain stable voltage for onboard electronics (ECUs, infotainment, climate control) during stops. By buffering transient loads, it reduces stress on the starter and main battery and contributes to smoother, faster restarts.

Replacement Procedure (Overview)

• Park the vehicle on level ground, engage the parking brake and remove any ignition key.
• Disconnect the negative battery terminal and wait a few minutes to allow residual charge to dissipate.
• Locate the capacitor assembly—typically installed near the battery or the main power distribution area; remove trim or covers as required to access the unit.
• Disconnect electrical connectors and any retaining clips or bolts. Note connector positions for correct reassembly.
• Install the new capacitor, secure fasteners to the vehicle manufacturer’s specifications and reconnect electrical connectors.
• Reconnect the battery, start the vehicle and verify Start-Stop function and electrical system stability. Clear any residual fault codes using diagnostic equipment if necessary.

Installation Recommendations

• Always Disconnect The Battery Before Work: To avoid electrical damage and personal injury, remove the negative battery terminal before removing the capacitor.
• Use Proper Tools: Protect connector locking tabs and harnesses when unplugging; avoid excessive force.
• Check For Corrosion And Wiring Damage: Inspect wiring, terminals and grounding points while the unit is removed; repair any issues to prevent repeated failures.
• Verify System Operation With Diagnostic Tool: After installation, confirm Start-Stop readiness and clear any fault codes using a compatible diagnostic scanner.

Why This Part Most Commonly Fails

Failures are usually caused by age-related degradation, thermal stress and electrical overstress. Repeated charge/discharge cycles, exposure to high under-hood temperatures, moisture ingress or sustained overvoltage events can reduce capacitance or increase internal resistance (ESR), which impairs the unit’s ability to deliver the required current for restarts. Corroded connectors and poor grounding are also frequent contributors to malfunction.

Practical Tips For Mechanics

• When diagnosing Start-Stop faults, test both the capacitor and the battery—one weak component can mask the other.
• Document the original part number and compare with the replacement to ensure compatibility.
• Replace related damaged wiring or mounting hardware at the same time to avoid repeat visits.

This component is commonly searched by its OEM numbers 9677002780 and 9801739380; include these references in your parts lookup to speed up identification and ordering.