Bmw 520d Catalytic Converter
Replacement catalytic converter — fitment, symptoms & live UK prices.
Fits Bmw 520d — check your reg/VIN to confirm
From £19.15 · 6 live listings on eBay
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Will it fit my Bmw 520d?
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 Bmw 520d 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.
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Live pricesFrom £19.15
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