Are you looking for a replacement part for your Peugeot 307? We offer a high-quality used Heating Control from the renowned manufacturer Magneti Marelli, specifically designed for Peugeot 307 models up to the year 2004. This part is an ideal choice for owners who need to replace a malfunctioning heating control and are seeking a reliable and cost-effective solution. The control is intended for vehicles without air conditioning, and its installation is relatively straightforward, making it appreciated by both professional auto mechanics and DIY enthusiasts.

Technical Information
Manufacturer: Magneti Marelli
Model: Peugeot 307 (models up to 2004)
Product Codes: 1848819139, 142140000, T5CHESS, 6451JN
Additional Numbers: 6451JN NFP

If your vehicle is equipped with the original control marked with any of the above codes, this part will serve as a perfect replacement. The replacement part ensures that the heating function in your vehicle will be fully operational and efficient again. To ensure optimal performance, we recommend that the installation be carried out by a qualified auto repair technician. The used part has been carefully tested to ensure its full functionality and reliability.

Choose wisely and invest in a part that will guarantee trouble-free heating operation in your Peugeot 307. Save on costs while supporting sustainability by giving a second chance to high-quality used auto parts.

Product Overview

This used HVAC control unit is designed for manual climate systems in the Peugeot 307. It operates the heater and manual air conditioning functions: temperature selection, fan speed, air distribution and AC on/off. Frequently searched by product codes 593240000, T5RFESS, 6451JS and 6451JR, this component is a common replacement on older 307s and is aimed at professional mechanics and DIY enthusiasts who perform electrical and interior repairs.

Key Benefits

• Direct replacement for original manual climate controls on compatible Peugeot 307 models.
• Restores full manual HVAC functionality: blower control, temperature regulation and mode selection.
• Fits into original dash location, simple swap for experienced technicians.

Technical Information

• Manufacturer: Stellantis / Peugeot
• Model: Peugeot 307
• Product Codes: 593240000, T5RFESS, 6451JS, 6451JR
• Additional Numbers: NFP

Compatibility And Fitment

Intended for Peugeot 307 models. This control is commonly fitted to first generation 307 vehicles and may appear across hatchback, SW (estate) and CC (coupe-cabriolet) body types depending on production year and equipment level. Always verify the product codes stamped on the unit (listed above) against the vehicle unit before installation to ensure correct fitment.

How The Unit Is Replaced

Replacement requires basic trim removal and careful handling of electrical connectors. Typical procedure:

1. Disconnect the negative battery terminal before any work to avoid short circuits and prevent damage to electronic modules.
2. Remove surrounding dash trim and radio bezel using appropriate plastic trim tools to avoid scratching panels.
3. Unscrew the HVAC control unit fasteners (commonly Phillips or Torx) and gently pull the unit forward.
4. Disconnect electrical connector(s) and any mechanical linkages (if applicable), then remove the unit.
5. Install the replacement by reversing removal steps: connect wiring, secure fasteners, test all HVAC functions (fan speeds, temperature control, air distribution, AC engage) before refitting trim and reconnecting the battery.

Installation Recommendations

• Always disconnect the battery before removal/installation.
• Use plastic trim tools to avoid damaging clips and fascia surfaces.
• Inspect the connector and wiring harness for corrosion, bent pins or brittle insulation; repair any damaged wiring before fitting the new unit.
• Test the unit’s functions (fan speeds, temperature response, mode selection, AC signal) with the battery connected before completing reassembly.

Why The Part Most Commonly Fails

• Wear On Electrical Contacts And Potentiometers: Repeated use of knobs and sliders causes wear or intermittent contact.
• Corrosion And Moisture Ingress: Water leaks or high humidity can corrode PCB traces and connector pins.
• Broken Knobs Or Mechanical Components: Physical damage to controls or internal levers prevents proper operation.
• Cold/Heat Cycling And Age: Thermal stress over many years can cause cracked solder joints or degraded electronic components.
• Faulty Connectors Or Wiring: Oxidised connectors or damaged wiring can create intermittent faults that mimic unit failure.

Practical Tips For Mechanics And DIYers

• If symptoms are intermittent, inspect connectors and wiring before replacing the entire unit — a corroded pin or loose connector is often the root cause.
• Keep replacement fasteners and trim clips handy; some clips become brittle with age and should be replaced to ensure a clean reassembly.
• Label connectors during disassembly to avoid mix-ups when reinstalling similar plugs behind the dash.

Final Notes

This is a used component intended to restore manual climate functionality on compatible Peugeot 307 vehicles. Check product codes (593240000 / T5RFESS / 6451JS / 6451JR) against the unit fitted in the vehicle to confirm compatibility prior to installation.

This high-quality component is essential for maintaining comfort inside your car, enabling you to adjust temperature and airflow for optimal driving conditions.

Commonly failing due to wear and tear over time, this part can show symptoms such as unresponsive controls or inconsistent heating and cooling performance. Regular replacement is recommended to prevent discomfort and ensure the climate system operates effectively.

Technical Information:

• Manufacturer: PSA Citroën Peugeot
• Model: Peugeot 307
• Product Codes: 9651196880, 96430991XT
• Other Numbers: 6451ZA, 6451YZ

Regular wear and tear can lead to malfunctioning heater controls, often due to electrical faults or mechanical failure. It is advisable to check your heater control regularly, particularly if you notice inconsistencies in heating or cooling performance. Replacing a faulty heater control can significantly improve your vehicle’s comfort and climate efficiency.

Technical Information

• Manufacturer: PSA
• Model: Peugeot 307
• Product Codes: 9651196880, 6451ZA
• Other Numbers: 96430991XT, 6451YZ

This climate control panel is the direct-fit controller for the Peugeot 307 (pre-2004) HVAC system. Designed for mechanics and DIY enthusiasts, it restores full control over temperature, fan speed and air distribution when the original unit becomes worn or unreliable. The part is commonly searched by OEM and aftermarket codes, so listing the product numbers in the description helps you find the right unit quickly.

The control assembly operates the heater and air conditioning system by adjusting blower speed, selecting vent modes and controlling temperature through rotary knobs and internal potentiometers/switches. Replacing a faulty control panel returns precise cabin climate control and prevents issues such as stuck heater flaps, inoperative fan speeds or non-responsive temperature adjustment.

Technical Information

• Manufacturer: Stellantis (Peugeot)
• Model: Peugeot 307 (up to 2004)
• Product Codes: 96527144XT, 6451ZQ, 6451ZR
• Additional Numbers: 6451ZQ, 96527144XT, NFP

Installation Recommendations

Before starting, disconnect the negative terminal of the battery to avoid short circuits. Typical replacement steps:

1. Carefully remove central trim panels around the radio and dashboard to access the climate control unit. Use plastic trim tools to avoid damaging clips.
2. Unscrew the fixing screws holding the control unit and gently pull the unit out far enough to access electrical connectors.
3. Unplug all electrical connectors and detach control cables or actuator linkages if present; note their routing for reassembly.
4. Fit the replacement unit, reconnect all plugs and cables, secure with screws and refit trim panels.
5. Reconnect the battery and verify all functions: fan speeds, temperature control and airflow direction. Check for any warning lights or unusual noise.

If transfer of knobs or bezel is required, remove them carefully and refit to the new unit. Avoid forcing connectors; inspect wiring plugs for corrosion or bent pins before installation.

Most Common Causes Of Failure

• Wear Of Electrical Contacts And Potentiometers: Frequent use causes contacts and rotary potentiometers to degrade, leading to intermittent or lost control over fan speed and temperature.
• Mechanical Damage To Knobs And Sliders: Plastic knobs and internal selector mechanisms can crack or strip, preventing proper operation.
• Moisture And Corrosion: Water ingress (from HVAC condensation or blocked drainage) can corrode contacts and connectors, leading to electrical faults.
• Connector And Wiring Problems: Loose or corroded connectors at the rear of the unit can cause intermittent faults that mimic a faulty control panel.

Search Tips: Customers often look for this part by product numbers (96527144XT, 6451ZQ, 6451ZR). Use these codes when searching online or in parts catalogs to quickly identify the compatible control unit for Peugeot 307 (up to 2004).