Toyota Avensis Catalytic Converter

The catalytic converter in a Toyota Avensis is an essential exhaust component designed to reduce harmful emissions. It converts toxic gases from the engine exhaust into less harmful substances, helping the vehicle comply with Euro 3, Euro 4, or higher environmental standards depending on the model, engine, and year.

Catalytic converters are available for various Toyota Avensis models, mainly generations T22 (1997-2003) and T25 (2003-2009). They fit both petrol and diesel engines, such as 1.8 VVT-i, 2.0 VVT-i petrol engines, and diesel engines like 2.0 D-4D or 2.2 TD D4D DPF. Positions may vary: front, centre, rear, or under the seat for diesel DPF models.

Common technical characteristics include :

• Material: Mainly ceramic substrates for effective catalytic reactions.
• Length: Around 470 mm for front converters; complete lengths from 2400 to 2550 mm.
• Weight: Between 8.8 and 11.9 kg depending on version.
• Certifications: Includes E9-103R, E57-103R, E-Mark, and compliance with OBD diagnostics.
• Accessories: Usually supplied with mounting parts and lambda sensor compatibility.

The catalytic converter is positioned either at the exhaust manifold (front), mid-pipe, rear exhaust or under the seat (for diesel DPF versions).

Yes, diesel models of the Avensis are equipped with both a catalytic converter and a diesel particulate filter (DPF). The catalytic converter supports emission reduction as part of the exhaust system, often located under the rear seat with lengths up to 2550 mm. The DPF captures particulate matter to further reduce diesel emissions.

Prices vary depending on the model, engine, and supplier. Indicative prices for a Toyota Avensis catalytic converter can range from around 260 € for a secondary petrol catalyst up to about 700 € for some diesel catalytic converters including DPF types. Installation costs will vary by workshop and location.

To check the condition and compatibility of your Toyota Avensis catalytic converter :

• Verify your engine code (e.g. 1ZZ-FE, 1AZ-FSE) and Euro emission standard compliance.
• Use your vehicle registration or VIN to find exact part references on specialized catalogues.
• Consult with a professional mechanic or automotive diagnostic service for symptoms like poor engine performance, exhaust odors, or check engine lights.

Remember that regulatory compliance for roadworthiness tests may require an approved catalytic converter.

While some owners consider fitting cat locks or anti-theft devices due to the precious metals inside catalytic converters, this is not legally required. However, since catalytic converters can be targeted for theft, securing your vehicle and parking in safe areas is advisable to reduce theft risk.

• No mandatory fitting of cat locks is currently enforced by regulation.
• Check local advice or insurance policies for recommendations.

Consult with experts if you want to explore anti-theft solutions.

You can find new, high-performance catalytic converters for Toyota Avensis directly from specialist manufacturers and suppliers online. These catalytic converters comply with European standards, include warranties up to 3 years, and are made with durable ceramic substrates and stainless steel casings.

• Check product certifications (e.g., TÜV SÜD, E-Mark) to ensure authenticity and compliance.
• Review compatibility carefully via engine codes and vehicle years.
• Professional warranty and customer support often included with direct factory products.

Order through official channels or verified distributors offering fast shipping to your address or pickup points in the UK.