Basically, this thing traps soot—the tiny particles created when diesel fuel burns. Think of it like a really fine sieve. Exhaust gases flow through it, and the DPF catches all those little bits of carbon that would otherwise go out the tailpipe. It also has a regeneration process where it burns off that collected soot at high temperatures. It doesn’t eliminate the soot, it just collects it and then incinerates it periodically. It’s a critical part of your exhaust system, positioned after the catalytic converter. Modern diesel engines need these to meet emissions standards. Without it, you’d be pumping a lot of black smoke out and failing emissions tests for sure. It’s a fairly self – contained system, with sensors monitoring how full it is and initiating that burn – off process I mentioned. It keeps your car legal to drive, that’s the biggest thing. But it also affects performance. A clogged DPF chokes the engine, reducing power and fuel economy. You’ll notice if it’s getting blocked—the engine might feel sluggish, the check engine light will likely come on, and you might even see a warning message specifically about the DPF. Ignoring it can lead to some serious engine damage down the road. You can find replacements easily enough, Fixparts Online has a good selection, but getting it sorted early saves you a lot of headache and expense. Eco-friendly and safe: Diesel Particle Filter (MPN 04L131656SX) comes with a 12-month warranty!

About Audi

Audi is a renowned German automobile manufacturer known for its innovative engineering, luxurious designs, and cutting-edge technology, delivering premium vehicles that blend performance and sophistication.

Why Choose Audi?

• Audi parts are made specifically for your vehicle, ensuring a perfect fit and reliable performance. • Using genuine Audi parts helps maintain your vehicle’s original quality and resale value. • Audi parts are rigorously tested to meet high safety and performance standards, giving you peace of mind. • We offer a wide range of Audi parts, so you can easily find what you need to keep your car running smoothly. Audi delivers excellence, FixParts Online delivers to your door.