Bmw 520d Catalytic Converter
Replacement catalytic converter — fitment, symptoms & live UK prices.
Fits Bmw 520d — check your reg/VIN to confirm
Catalytic Converter
Aftermarket £80–£250; OEM much more.
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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.
See Catalytic Converter prices on eBayMore Bmw 520d parts
Timing BeltBmw 520dTiming ChainBmw 520dTurboBmw 520dEGR ValveBmw 520dAlternatorBmw 520dBrake PadsBmw 520d
Live pricesAftermarket £80–£250; OEM much more.
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