This little component precisely measures and injects AdBlue – that’s a diesel exhaust fluid – into the exhaust system. It controls the amount of fluid going in, making sure it’s just right. It’s got a pump, a heater, and sensors all working together to make that happen. Think of it as a very accurate little liquid delivery system. It's a key part of your vehicle's emissions control system, specifically the selective catalytic reduction, or SCR, system. That SCR system reduces harmful nitrogen oxides – NOx – in the exhaust gas. The dosing module is what makes the SCR system work correctly. It sprays the AdBlue into the exhaust stream, and that fluid reacts with the NOx, turning it into harmless nitrogen and water. Without a properly functioning dosing module, your vehicle won’t meet emissions standards, and it could trigger a warning light. It's really important because it keeps your car legal to drive and helps keep the air cleaner. If this thing starts to fail, you’ll notice if your check engine light comes on, or you might see a specific warning about the emissions system. You could also experience reduced engine performance, or even a refusal to start in some cases. It’s one of those parts that, when it’s working, you don’t think about it. But when it goes bad, it can cause a lot of headaches. We carry a good selection of these at Fixparts Online, and honestly, replacing it is often much cheaper than dealing with the consequences of letting it fail and potentially damaging other parts of the system. Technical support included: Dosing Module (MPN 0444023056) comes with a 12-month warranty!

About Bosch

With a heritage of innovation, Bosch provides dependable and efficient automotive components that set industry standards.

Why Choose Bosch?

• Bosch parts are known for being reliable and lasting a long time, which can save you money on repairs in the future. • They’re a leading supplier to car manufacturers, so you’re getting the same quality parts used in many new vehicles. • Bosch invests a lot in research and development, meaning their parts often have the latest technology for better performance. • You can find Bosch parts for a wide range of vehicles, from older models to the newest cars and trucks. Bosch – trusted quality, available at FixParts Online!