Ford C-Max Catalytic Converter

The catalytic converter is an essential component of the Ford C-Max exhaust system. It is located within the exhaust line and processes gases before they are released into the atmosphere. It consists of a ceramic monolith with a honeycomb structure coated with alumina washcoat infused with precious metals such as platinum, rhodium, and palladium (typical ratio 5:1). These precious metals catalyze chemical reactions that reduce harmful pollutants like NOx, CO, and HC into less harmful compounds such as water (H2O), carbon dioxide (CO2), and nitrogen (N) through oxidation and redox reactions. The converter operates optimally around 420°C, which is reached quickly near the engine; below this temperature, clogging or blockage may occur.

The catalytic converter in Ford C-Max operates via specific chemical reactions:

• Reduction of nitrogen oxides (NOx) by rhodium and platinum.
• Oxidation of unburned hydrocarbons (HC) and carbon monoxide (CO) by platinum and palladium.

There are two main types: two-way converters (typical for older diesel models) and three-way converters (mainly for gasoline engines in C-Max). The weight ranges from 1 to 10 kg. Variants include standard under-vehicle, collector-adapted for high temperatures, or close-coupled designs that connect directly to the exhaust manifold for optimal heat retention. Diesel Ford C-Max often combine the catalytic converter with a Diesel Particulate Filter (DPF) in the same stainless steel housing to trap soot and fine particulates.

For example, the Ford Focus C-Max (DM2) 1.6 Ti from 08/2004 to 03/2007 uses approved catalytic converters with specific mounting kits that meet regulatory standards. The catalytic converter is integrated into the emission control system and is sensitive to thermal expansion, featuring multiple monoliths within a stainless steel shell with an elastic layer. Official Ford manuals highlight the importance of extreme heat management and suitable fuel usage to avoid damage.

• Model example: Focus C-Max (DM2) 1.6 Ti (2004-2007) with homologated converter and specific mounting kit.

These provide compliance with emission regulations and optimal performance.

Failure signs of a catalytic converter include:

• Opaque smoke from the exhaust.
• Metallic noises or vibrations under the vehicle floor.
• Loss of engine power, frequent stalling, and weak acceleration.

Causes can be soot clogging due to low operating temperatures, melting of the monolith caused by excess fuel, damage from hardened sealants, or excessive exhaust pressure. Diagnostics include pressure tests up to 8 bars and compliance checks using OBD2/OBD3 systems and EU emission standards including E24-103R certification and CE marking.

Step-by-step illustrated manuals and video tutorials are available for replacing the catalytic converter on Ford C-Max vehicles. Key points include choosing type-approved converters to ensure legal compliance and performance, following proper disassembly and reassembly procedures, and using the correct tools.

• Ensure fuel system is correctly adjusted to avoid excess fuel.
• Maintain proper exhaust temperatures, especially for vehicles with diesel particulate filters.
• Replace sensors like the Lambda sensor when installing a used or new catalytic converter for optimal performance.

DIY replacement is possible with the right guidance, tools, and safety precautions.

Krosfou offers new, high-performance catalytic converters manufactured in Europe with OEM-quality standards. These feature stainless steel INOX 409 construction and high-grade ceramic monoliths with precious metal coatings ensuring durability and performance. They come with a 3-year warranty covering up to 100,000 kilometers, limited to proper use and installation by a professional. Free returns are accepted within 30 days for unused, original-condition parts.

• Warranty requires adherence to manufacturer installation and maintenance instructions.
• Free return within 30 days applicable for products delivered within France or Europe.
• Orders shipped quickly with express delivery options available.

This ensures you receive genuine, compliant, and reliable products with technical support.

Delivery options include:

• Standard European delivery to your address or pickup point in 1 to 6 working days, free for orders over €157.50 excluding VAT.
• Express delivery within Europe in 24 to 48 hours via UPS or DHL.
• International shipping by air with standard delivery in 8 to 15 working days or express delivery in 2 to 4 working days.

Orders placed before noon and in stock are shipped the same day. Out-of-stock items can be manufactured within 2 days and shipped express. Krosfou partners with reliable carriers offering online package tracking to ensure secure and fast delivery.

Professionals such as mechanics, auto parts resellers, fleet managers, and vehicle buyers can join the Krosfou PRO program to enjoy:

• Discounts up to 30-40% depending on product and order volume.
• Tiered pricing and special payment terms.
• Access to the full catalog including EPA-compliant and California CARB-compliant products for Ford C-Max and other models.
• Free shipping and free returns within 30 days on eligible products.
• Loyalty points and buy-back options for used catalytic converters and DPFs to reduce waste.
• Direct technical support from factory experts.

This program is designed to provide expert support, best prices, and a wide selection of quality Ford C-Max converters for business needs.