Peugeot 307 Catalytic Converter

The catalytic converter in the Peugeot 307 transforms toxic exhaust gases into less harmful compounds via chemical reactions. It reduces nitrogen oxides (NOx) through oxidation-reduction using rhodium and platinum, and oxidizes unburned hydrocarbons (HC) and carbon monoxide (CO) with platinum and palladium catalysts. The ideal operating temperature is around 420 °C. Positioned close to the engine, it heats quickly, followed by other exhaust components that reduce noise and filter particulates.

Replacing the exhaust system including the catalytic converter (e.g., Peugeot 307 2.0 HDi) involves the following steps and tools:

• Lift the vehicle (front, rear, or whole)
• Disconnect the battery
• Use tools such as ratchet, extension bars, 13 mm and 16 mm sockets, clip pliers, screwdriver, penetrating oil, torque wrench, grease

Estimated time: 1 to 2 hours.

Follow these steps for removal based on tutorials and videos :

• Remove exhaust silencers and line clamps using 16 mm socket and clip pliers
• Unscrew driver and passenger side silent blocks with 13 mm socket
• Loosen collector to catalytic converter clamp using 16 mm socket and screwdriver
• Remove front and rear silent blocks with penetrating oil and pliers
• Slide the exhaust line towards the rear to remove it

Refer to Peugeot 307 2.0 HDi videos for guidance.

For installation of the new catalytic converter kit and exhaust line :

• Grease and fit the rubber silent blocks onto their rods
• Align pipes, matching their blue marks, then tighten the clamping collars with a 13 mm wrench
• Position and torque the flange collars using a 16 mm socket and torque wrench
• Secure the silencers with clamps and bolts
• Check there is no contact with heat shields and other parts, then reconnect the battery

Use the proper sequences to ensure correct fit and sealing of the exhaust system.

Common problems include clogging or fouling when the converter never reaches its optimal temperature of 420 °C, often due to short trips or engine issues. Catalytic converters contain precious metals (platinum, palladium, rhodium), making them targets for theft.

Maintenance tips:

• Ensure engine is running properly to reach operating temperature
• Replace lambda sensors as recommended (usually after 80,000 to 100,000 km)
• Avoid short trips that prevent efficient regeneration
• Use high-quality fuel and keep up with regular engine service to reduce unburned hydrocarbons

Prices vary depending on the model and type of engine. For example, the Peugeot 307 CC 1.6 petrol (135 PS) catalytic converter replacement cost depends on the garage and region. Effective catalytic converters work only at high temperatures, so proper installation and function are essential for value.

Check with professional suppliers or authorized garages for price quotations and ensure the replacement converter matches your engine displacement and emission standards.

Common abnormalities and diagnostics include:

• Reduced engine performance or power drop
• Illuminated fault indicator on the dashboard
• Failed emissions tests
• Unusual noises or rattling from the exhaust
• Possible damage from overheating or sensor failure

Check sensors and exhaust leaks. While many garages can diagnose faults, visiting a Peugeot specialist garage or workshop ensures proper diagnosis and replacement with quality parts.

For reliable, high-quality catalytic converters matching Peugeot 307 models, consider suppliers offering original or equivalent quality parts manufactured in Europe with certified standards, like the Krosfou brand. These converters are made using stainless steel and feature advanced coatings for durability and performance.

• Brands with TÜV-certified quality
• Manufactured with high-end technology using platinum, palladium, rhodium coatings
• Direct factory support and installation manuals available
• Warranty for 3 years covering up to 100,000 km under correct installation and usage

Always verify compatibility with your vehicle’s VIN and engine type before ordering. Professional installation is recommended to ensure proper exhaust system management and sensor function.