Volkswagen Touran Diesel Particulate Filter DPF 1 (I) (2003-2010)

The Diesel Particulate Filter (DPF) is a key component in the exhaust system of Volkswagen Touran diesel vehicles that captures and retains fine soot particles from the engine's exhaust gases. Its purpose is to reduce harmful emissions and help the vehicle meet stringent Euro 6 emission standards.

The Volkswagen Touran DPF operates through two main processes:

• Filtration: The filter traps soot particles from the diesel exhaust, forming a layer of soot inside the filter walls.
• Regeneration: The accumulated soot is burned off at high temperatures to clean the filter and restore engine performance.

This continuous process enables the DPF to reduce particulate emissions effectively while maintaining vehicle efficiency.

Key technical features of the Volkswagen Touran DPF include:

• Material: Silicon Carbide (SiC)
• Weight: Approximately 8.3 kg
• Type: Diesel Particulate Filter with SCR coating (SDPF)
• Emission Standard: Euro 6 compliant
• Equipped for vehicles with On-Board Diagnostics (OBD)

This DPF is compatible mainly with 2.0 TDI engines such as the 150 HP variants (TECDOC references DFEA, DFGA).

Replacement intervals for the DPF depend on vehicle use and conditions but generally occur:

• First replacement recommended between 125,000 and 165,000 kilometers
• Subsequent replacements usually start from 210,000 km, then every 30,000 km afterwards per EU regulations

The filter reaches saturation mainly due to ash buildup, which can accumulate up to 60 grams before full saturation.

Signs indicating your Volkswagen Touran’s DPF may be failing or clogged include:

• Loss of engine power
• Increased fuel consumption
• Illumination of the Check Engine or glow plug warning light
• Excessive black smoke from the exhaust
• Filter clogging leading to engine issues
• Potential issues with the Exhaust Gas Recirculation (EGR) system

These symptoms indicate the DPF needs attention to avoid engine damage.

There are several methods to clean or regenerate the DPF effectively:

• Natural Regeneration: Driving the vehicle at a stable speed between 60–80 km/h for 25 to 30 minutes with the engine at operating temperature helps burn off soot.
• Forced Professional Regeneration: Using a diagnostic tool like VCDS or diagnostic "valise" at a Volkswagen service center to initiate regeneration.
• Hydrogen Decarbonization: An economic method involving air admission with hydrogen to reduce fuel consumption and ease technical inspection.
• Professional Cleaning: Scientific and proven methods ensure full cleaning of the DPF and catalytic converter to restore original performance.

Note that frequent short urban trips prevent the engine from reaching the necessary temperature for effective natural regeneration, increasing clogging risk.

Cleaning the DPF professionally offers several advantages over outright replacement:

• Restores the vehicle’s original engine performance
• Reduces fuel consumption and emissions
• Prolongs the lifespan of the engine and exhaust system
• Avoids costly breakdowns and replacements

Cleaning is a cost-effective way to maintain your Volkswagen Touran’s efficiency and comply with environmental standards.

The Volkswagen Touran differs from some other vehicles (such as Sharan or Peugeot models) as it does not use an additive liquid reservoir to assist DPF regeneration. Instead, it fully relies on engine temperature and intensive driving to regenerate the filter.

• DPF availability varies by country and model: In Germany, the DPF is optional on most TDI versions except the TDI 170 which has it as standard. In France, only the 170 model includes a factory-fitted DPF.
• Regular checks and maintenance are essential to avoid costly repairs.

Always follow manufacturer guidelines for your Touran’s DPF system management and servicing.

For genuine, high-quality replacement DPFs, Krosfou offers original, stainless steel DPFs meeting or exceeding manufacturer specifications, backed by a 3-year warranty.