Audi Q3 Catalytic Converter
Replacement catalytic converter — fitment, symptoms & live UK prices.
Fits Audi Q3 — check your reg/VIN to confirm
From £73.99 · 6 live listings on eBay
View Catalytic Converter on eBay🛡️ eBay Money Back Guarantee🇬🇧 UK sellers↩️ Easy returns
Bosch O2 Lambda Oxygen Sensor before catalytic converter fits Audi Q3 2013-2018
£73.99View ›
2012 AUDI Q3 2L TDI CAT CATALYTIC CONVERTER DPF FILTER 3Q0131701
£80.00View ›
AUDI Q3 8U MK1 2015 2.0 TDI CATALYTIC CONVERTER 3Q0131701
£82.00View ›
2015 AUDI Q3 QUATTRO S-LINE 8U 4x4 2.0TDI MK1 DPF CATALYTIC CONVERTER REF17800
£116.10View ›
AUDI Q3 2.0 TDI EXHAUST CATALYTIC CONVERTER FITS MODELS 2015 TO 2018 5N0253059CN
£151.20View ›
AUDI Q3 2.0 TDI EXHAUST CATALYTIC CONVERTER FITS MODELS 2015 TO 2018 5N0254303H
£189.00View ›
Will it fit my Audi Q3?
Must be the correct emissions-spec cat for your engine and year, or it'll fail MOT. Type-approved units only.
Tip: filter by your reg on eBay's compatibility check, or match the part number stamped on your old unit.
Signs your Audi Q3 catalytic converter needs replacing
- P0420 / catalyst efficiency code
- Rattling inside (broken substrate)
- Failed emissions/MOT
- Sluggish, rotten-egg smell
Fitting it yourself
Bolt-on or welded depending on setup. Lambda sensors often transfer over.
See Catalytic Converter prices on eBayMore Audi Q3 parts
Live pricesFrom £73.99
View on eBay