Audi Q3 Diesel Particulate Filter DPF 1 (I) (2011-2018)

A diesel particulate filter (DPF) is part of your exhaust system, designed to capture and store harmful particles (soot) from the combustion process in diesel engines. Over time, the filter regenerates—burning off these deposits to restore function. It's a vital component for staying compliant with European emissions regulations and minimizing diesel soot output.

Keeping your filter clean is essential. There are a few widely used techniques:

• Active regeneration: Your car raises exhaust temperatures to burn off soot.
• Passive regeneration: Happens on long trips at steady speeds.
• Forced/manual regeneration: Done by a garage with diagnostic tools.
• Off-car cleaning: Uses external equipment to clean the filter chemically or ultrasonically.

Not every situation allows for cleaning—severe blockages often require full replacement.

Users often report these signs:

• Recurrent dashboard alerts or warning lights
• Sluggish driving or limp mode
• Noticeably worse fuel efficiency
• Unusual smoke from the tailpipe

These conditions are commonly tied to incomplete regeneration, frequent short-distance trips, or component faults. Routine checks in your vehicle log help prevent bigger repairs.

If your vehicle signals a blockage, the dashboard may display a yellow warning symbol, resembling a pipe with dots. Here's how to proceed:

• Scan with an OBD-II tool to pull error codes
• Consult your owner's manual for next steps
• Avoid ignoring the warning—waiting can risk engine or turbo damage

A persistent alert could also mean the sensor or system has not reset after a previous issue.

Most filters are built to last between 120,000 and 180,000 kilometers. However, short trips and low-quality fuel can reduce this interval. Track service details in your maintenance log and monitor performance after each cleaning.

The price can vary based on:

• Filter type (e.g., silicon carbide vs. cordierite)
• Engine compatibility and vehicle model
• Whether additional hardware like supplementary articles or item surcharge fees apply

At Krosfou, our EEC-approved filters are engineered for durability and sold at a competitive value, with a 3-year warranty included.

You can buy directly from Krosfou.co.uk. We offer:

• Streamlined navigation to find the right item
• Technical specifications, article number, and item description
• Models matched by vehicle type and engine configuration

Track your order through your account and view previous items you've viewed anytime. We provide full description with your vehicle details.

To ensure compatibility:

• Review your car's documentation or VIN
• Match by production year and engine type (e.g., TDI quattro)
• Use our search tool to narrow options by configuration

Installing the wrong filter could result in performance issues or emissions test failure.

No—specific variants require different filters. Variations may include:

• With or without integrated catalyst
• Shape and sensor port position
• Material composition and suitability for diesel cars vs petrol variants

Always confirm by reading the item details or consulting our technical data.

A flashing alert can mean a severe obstruction or malfunction in the emission system. Immediately scan the vehicle or consult a technician. Ignoring repeated alerts risks costly damage and may affect your ability to pass inspection.

Adopt these practices:

• Combine short trips into longer drives
• Fill up with quality diesel fuel
• Maintain your exhaust and intake systems
• Stick to scheduled inspections and services in your log

Preventative habits help you avoid common failures in your DPF or GPF.

Our kits typically provide:

• A brand-new diesel particulate filter
• Any supplementary articles needed for installation
• Hardware like bolts or seals

Be sure to read each product listing carefully to verify item description and included parts.

Yes, all units are certified under EEC guidelines and conform to European environmental standards. Every product undergoes comprehensive quality testing before release to meet the demands of modern diesel engine platforms.

Look out for:

• Recurring alerts or loss of power
• Ineffective regeneration cycles
• Physical damage or high backpressure
• Reduced mileage or excess smoke from the exhaust

These signs suggest the particulate filter is no longer operating efficiently and may need to be replaced.

Yes—a new or well-maintained DPF is key to passing emissions tests, especially in diesel cars subject to strict regulations. A functioning filter reduces particulate matter, improving your vehicle's environmental performance.

If you're confident in your mechanical skills and have proper tools, installation is possible. Otherwise, a garage can perform the swap and reset relevant systems, including light and error code resets.

Yes—newer petrol engines, like those in some TFSI quattro variants, include a gasoline particulate filter (GPF). These operate similarly to diesel filters but are tuned for petrol combustion properties. Always check your specs to be sure.

We specialize in emissions control systems and manufacture every unit ourselves:

• All filters meet or exceed EU standards
• Three-year warranty coverage
• Compatible with most Audi diesel platforms
• Precision fit and proven durability, with full documentation

Explore our product listings to find a filter matched to your vehicle's configuration. All products include technical data and accurate descriptions aligned with your vehicle.