Audi Diesel Exhaust Fluid (DEF) Pump Replacement

Audi Diesel Exhaust Fluid (DEF) Pump

The DEF pump in your Audi diesel vehicle is responsible for delivering Diesel Exhaust Fluid to the SCR (Selective Catalytic Reduction) system. This system reduces NOx emissions, helping your Audi stay compliant with strict diesel regulations. A malfunctioning pump can cause performance issues and DPF warning lights.

Importance of a Functional Audi DEF Pump

Critical for reducing harmful diesel emissions and keeping your system operating properly.

• Supports Emissions Compliance: Delivers DEF at precise flow rates to lower NOx emissions.
• Prevents Limp Mode: Avoids performance restrictions caused by DEF system faults.
• Ensures Smooth SCR Operation: Maintains optimal DEF pressure and dosage levels.
• Improves Fuel Efficiency: Keeps diesel engines running cleaner and more efficiently.

Common Features of Audi DEF Pumps

Engineered to withstand the unique demands of diesel exhaust fluid handling.

• High-Pressure Capability: Designed for accurate fluid delivery under pressure.
• Corrosion-Resistant Materials: Compatible with DEF’s urea-based chemical composition.
• Electronic Control Module: Works with Audi’s emissions ECU for smart dosing.
• Thermal Protection: Equipped to handle varying underbody temperatures.

Why Choose eEuroparts for Audi DEF Pumps?

• Top-Tier Brands: Choose OEM or premium aftermarket DEF pumps built for reliability.
• Wide Diesel Fitment: Available for Audi Q7 TDI, A6 TDI and other diesel models.
• Accurate Compatibility Data: Easy to find the right pump using VIN or model filters.
• Expert Help: Get advice on installation and system priming after replacement.

Explore More Audi Parts at eEuroparts

Keep your Audi diesel running clean and efficient with a reliable DEF pump. Shop eEuroparts for trusted emissions components and restore full performance with confidence and ease.