Audi A3 Tank unit (urea injection) sealing cap

Tank unit (urea injection) sealing cap for Audi A3 — what you need to know

Finding the right tank unit (urea injection) sealing cap for your Audi A3 is essential for safe and reliable driving. We stock 3+ options from 3+ trusted brands, all with TecDoc-verified fitment for your specific vehicle.

When choosing tank unit (urea injection) sealing cap for your Audi A3, consider factors like OEM vs aftermarket quality, material specifications, and your driving conditions. OEM parts match original specifications exactly, while premium aftermarket brands like Bosch, TRW, and Febi Bilstein often offer comparable quality at lower prices.

All tank unit (urea injection) sealing cap listed on this page are confirmed compatible with Audi A3. Our fitment data is sourced from TecDoc, the industry-standard European automotive parts database. If you are unsure about compatibility, check the OE part number on your existing component and use our cross-reference search.