Mercedes Vito Catalytic Converter

The Mercedes Vito catalytic converter is a crucial exhaust system component that reduces harmful emissions by converting toxic gases such as hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NOx) into less harmful substances like carbon dioxide (CO₂), nitrogen (N₂), and water vapor (H₂O). This is achieved through chemical reactions catalyzed by precious metals including platinum, palladium and rhodium. It helps the vehicle comply with strict Euro emission standards.

The catalytic converter operates via oxidation and reduction reactions at an optimal temperature range of 200-420°C. It consists of a ceramic or metallic monolith coated with precious metals inside a metal casing. Sensors including lambda (O₂) probes at the inlet and outlet measure oxygen levels to regulate the air/fuel mixture controlled by the engine ECU. Additional sensors monitor temperature and NOx levels for diesel engines equipped with SCR and DPF systems.

The catalytic converter is used on various Mercedes Vito models including the W639 (2003-2014) and W447 (2014 onwards), fitted with diesel engines OM651 and OM654 or gasoline engines like M271. On diesel variants, it is often combined with Exhaust Gas Recirculation (EGR), Diesel Particulate Filter (DPF), and Selective Catalytic Reduction (SCR) systems that use AdBlue for further emissions control.

• Located at the beginning of the exhaust system
• Integrated near or with the exhaust manifold to reach optimal temperature quickly
• Works in conjunction with sensors and ECU for emissions control

Regular checks and maintenance help prevent clogging and failure.

Common symptoms include:

• Engine limp mode activation or warning lights on the dashboard
• Reduction in engine power and acceleration performance
• Increased fuel consumption
• Emission-related error codes such as P0420 detected by OBD diagnostics
• Unusual sulfur or rotten egg smell from exhaust

Prompt diagnosis and replacement if needed help restore engine efficiency and legal emissions compliance.

Yes, replacement can be a DIY project with proper equipment such as wrenches and a vehicle lift. Typical steps include removing parts of the exhaust line, disconnecting sensors carefully, replacing the catalytic converter unit, and then resetting the ECU to clear fault codes.

• Use illustrated manuals and video tutorials specific to the Vito
• Ensure safety procedures and proper tools are used
• Consider professional service if unsure about steps or calibrations

Regular maintenance like careful driving to avoid fuel-rich mixtures extends catalytic converter life.

Proper maintenance tips include:

• Avoid excessive idling and short trips that prevent the catalytic converter from reaching operating temperature
• Use high-quality fuel to reduce deposits and contamination
• Regularly check and replace lambda sensors and keep the ECU in good working order
• Follow recommended servicing schedules for the exhaust and DPF systems

This helps prevent clogging, overheating, and damage due to poor fuel combustion or theft of precious metals.

Krosfou offers brand-new catalytic converters manufactured in Europe with high-grade INOX 409 stainless steel and advanced precious metal coatings. These products are certified by TÜV SÜD and meet or exceed OEM standards.

• 3 years warranty covering up to 100,000 km of use
• Free returns within 30 days for unused, original condition parts in Europe
• Manufactured with cutting-edge technology ensuring durability and performance improvements

Krosfou prioritizes true European quality and compliance with strict emissions regulations.

Krosfou ensures fast and secure delivery with the following options:

• Europe standard delivery within 1 to 6 working days, free for orders over €157.50 (excluding bulky items)
• Express delivery available within 24 to 48 hours depending on carrier (UPS, DHL)
• International delivery ranging between 8 to 15 working days standard, or 2 to 4 days express
• Any order placed before noon ships the same day if in stock; out-of-stock items can be manufactured within 2 working days

Reliable carriers and online shipment tracking provide peace of mind for customers receiving their catalytic converters promptly.