Audi A4 B9 Catalytic Converter
New, used, or aftermarket – from sellers across Europe.
Parts availability
Limited availability – hank searches the web for you.
Estimated price range
Widely available Limited Hard to find
Last updated: 04.11.2026, 08:40
Catalytic Converter for your Audi A4?
Create a parts request and we will automatically search the web for suitable offers. You'll receive the results by e-mail - free of charge.
In addition, sellers on hank can send you offers directly.
Prices from recent listings
| Source | Condition | Price (approx.) | Last seen |
|---|---|---|---|
| khv_shop via ebay.de | Used | 119.90 € | 2026-11-04 |
| carparts-zwinger via ebay.de | Used | 199.99 € | 2026-11-04 |
| khv_shop via ebay.de | Used | 225.95 € | 2026-11-04 |
| fahrzeugteile-online via ebay.de | Used | 292.95 € | 2026-11-04 |
| fahrzeugteile-online via ebay.de | Used | 321.95 € | 2026-11-04 |
| martin.haglautoverwertung via ebay.de | Used | 414.00 € | 2026-11-04 |
| supreme-parts-germany via ebay.de | New | 1,275.90 € | 2026-11-04 |
| dwparts_eu via ebay.de | New | 1,499.00 € | 2026-11-04 |
Indicative values only – current prices may vary.
Price comparison: Catalytic Converter
Current median for the Audi A4 B9: 307.45 €.
Median across all car models: around 360 €. This model is 15% below that and cheaper than 55% of the models compared.
Median across Audi car models: around 450 €. This model is 30% below that and cheaper than 65% of the models compared.
Compares the medians of the most recent offers found for each model.
Find Audi A4 B9 parts online
hank's free AI report searches specialized shops for Audi A4 B9 parts, including DPM Performance, Prestige Motor Services Ltd & LLLParts.
About this part
The catalytic converter on your A4 B9 converts the pollutants in the exhaust and decides whether the emissions test passes. Rattling when pulling away, a loss of power from blocked ceramic or a lambda control fault all call for replacement.
Frequently asked questions
What should I check when buying a catalytic converter for the Audi A4?
Emissions standard, engine code and flange dimensions of your A4 B9 matter, because a converter for the wrong standard never brings the sensors into their control range. Look for a valid approval number on the housing and check that the lambda sensor bosses and heat shield are there.
A used original converter or an aftermarket one?
A used original fits without surprises and keeps the vehicle's approval, but tap it first to hear whether the ceramic has come loose. Aftermarket converters cost less yet need the matching approval, otherwise the roadworthiness test turns into a problem.
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