Audi A6 Diesel Particulate Filter DPF

A DPF is an advanced filtration piece installed in the exhaust system of diesel engines — and yes, it's fitted in every Audi A6 since 2005.

What it does:

Traps particulate matter (mostly soot) from diesel engine combustion

Holds it in a porous structure until removed during regeneration

Helps your car comply with Euro emission standards like Euro 4, Euro 5, and Euro 6

If your A6 is a 2.0 TDI, 3.0 TDI, or TDI Quattro, the DPF is a required component. Ignoring it can lead to clogging, performance issues, and emission test failure.

Wondering if your DPF is in trouble? Look out for these warning signs:

Particulate filter fault messages or emissions lights on the dash

Poor fuel economy or sluggish acceleration

Fan staying on after shutdown

Regeneration failing to activate or complete

These indicators suggest the core may be blocked with soot, and it's time for action.

Your filter's condition and mileage dictate how to proceed. Here's a look at your options:

Passive Regeneration

Going for a long drive at a steady pace (above 2,000 RPM) lets your DPF reach ideal temperature and burn off residue.

Active Regeneration

Your car initiates this automatically when sensors detect buildup. However, frequent short trips can disrupt this process.

Forced Regen

This is triggered by a technician using diagnostics. Best for heavier soot loads or when oxygen sensor or EGR valve readings are out of range.

Off-Car Cleaning

The filter is removed and chemically cleaned. Great for restoring airflow without full replacement.

DIY Solutions

Our DPF cleaning kits come with detailed video instructions, so even handy car owners can manage basic maintenance by hand.

Note: Proper maintenance lowers long-term costs and avoids unnecessary component failure.

Make a habit of routine highway drives to help keep your filter clear. Keep revs above 2,000 RPM for at least 20 minutes. This habit supports better combustion, lowers emissions, and reduces the risk of a clogged system.

DPF prices depend on several factors:

Your Audi model (C6, C7, C8)

Engine type and fuel system layout

Whether you need a full mounting solution or just the filter

If supplementary items like pressure sensors or clamps are included

At Krosfou, our products range between £250–£600, VAT included. Each article is:

Constructed from top-grade cordierite or silicon carbide materials

Designed to match original equipment specifications

Packaged with optional mounting accessories for hassle-free installation

Ordering from Krosfou means:

You purchase directly from the manufacturer, skipping the middleman

We stock particulate filters for every Audi A6 body type, including wheel drive configurations

All parts are ECE and EEC approved, and listed in our digital catalogue

Detailed technical data and fitment info provided on every product page

Can't find your car model in the list? Contact our personnel — we'll find the right unit using your VIN or engine code.

Year Range Engine Variant DPF Installed Emissions Level

2005–2009 2.0 TDI Yes Euro 4

2009–2015 2.0 / 3.0 TDI Yes Euro 5

2015–2025 2.0 / 3.0 TDI Yes Euro 6

Bio-friendly driving starts with staying compliant — and your DPF plays a big part.

What's the role of a diesel particulate filter ?

It traps harmful particulate emissions from diesel engines, reducing pollution and protecting the catalytic converter.

Why is proper cleaning so important ?

Because it prevents blockages, supports optimal exhaust flow, and prolongs your vehicle's service life — without breaking the bank.

What are the common signs of a blocked DPF ?

Warning lights on the dash

A decrease in performance

Audible fan or idle issues

Frequent regeneration interruptions

Can I still drive when the system is showing a fault ?

Only if it's absolutely necessary. Driving too far with a clogged DPF can raise emission levels, damage the exhaust system, and compromise your diesel engine.

What's included in your complete filter packages ?

Each kit typically includes:

A particulate filter unit

Mounting parts: clamps, seals, pipes

Connection ports for sensors

Fitment notes and installation support

What makes Krosfou's filters worth it ?

Made by a trusted company with European approval certificates

Integrated with catalysts and EGR-compatible

Lightweight, reliable, and simple to install

Backed by full technical documentation and customer service

What if I need to return the core ?

We offer core return programs for eligible DPFs — helping you cut replacement costs and keep your footprint small.

Do you support other Volkswagen Group vehicles ?

Absolutely. We carry diesel particulate filters for Volkswagen, SEAT, Skoda, and more — including BRD engine types and 1.9/2.0/3.0 TDI setups.

What's the difference between cordierite and silicon carbide ?

Cordierite: Lightweight, cost-effective

Silicon carbide: More durable and heat-resistant, ideal for frequent short trips or heavy-duty usage

Do you offer add-ons or accessories ?

Yes. You can add:

Supplementary sensors and pipes

Inline converters for complex exhaust systems

Flexible mounting options to support non-standard layouts

If you're not sure which DPF fits your Audi, don't stress. Use our vehicle selector tool or contact our team. We'll walk you through your options and ensure you get a perfect match.

Factory-level pricing with no reseller markup

Certified, emissions-compliant parts

Fast UK shipping

In-house engineering and technical support

Filters trusted by auto professionals and thousands of customers

Start shopping now and give your Audi A6 the clean, powerful, and compliant drive it was built for.