Audi A5 Catalytic Converter
Replacement catalytic converter — fitment, symptoms & live UK prices.
Fits Audi A5 — check your reg/VIN to confirm
From £125.50 · 6 live listings on eBay
View Catalytic Converter on eBay🛡️ eBay Money Back Guarantee🇬🇧 UK sellers↩️ Easy returns
2016 AUDI A5 S Line 8T MK1 1.8 TFSI Catalytic Converter 8K0131701BM
£125.50View ›
2008 AUDI A5 CATALYTIC CONVERTER (8K0131701S) 1.8/2.0
£151.50View ›
Catalytic Converter For 2015 A5 2.0 Tdi Engine Code CNHA
£156.70View ›
AUDI A5 MK2 CAT CATALYTIC CONVERTER 2.0TDI DET 4G0131703AE 8K0230CA 2016-2019
£160.00View ›
AUDI A4 B8 A5 8T 2008-14 1.8 2.0 TFSI PETROL CAT CATALYTIC CONVERTER 8K0131701S
£199.00View ›
AUDI A5 16-23 SPORTBACK 2.0 TDI CATALYTIC CONVERTER CAT 8W0254400F
£199.99View ›
Will it fit my Audi A5?
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 A5 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 A5 parts
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Live pricesFrom £125.50
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