Mercedes C Class W204 Oxygen Sensor
Replacement oxygen sensor — fitment, symptoms & live UK prices.
Fits Mercedes C Class W204 — check your reg/VIN to confirm
Oxygen Sensor
£15–£60 each — most cars have more than one.
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Will it fit my Mercedes C Class W204?
Pre-cat (upstream) and post-cat (downstream) sensors are different parts — check which one your fault code points to, and how many your engine has.
Tip: filter by your reg on eBay's compatibility check, or match the part number stamped on your old unit.
Signs your Mercedes C Class W204 oxygen sensor needs replacing
- Engine warning light (O2/lambda code)
- Poor fuel economy
- Rough idle or hesitation
- Failed emissions/MOT
Fitting it yourself
Usually a single plug and a thread into the exhaust — quick if it's not seized. Penetrating oil helps on an old sensor.
See Oxygen Sensor prices on eBayMore Mercedes C Class W204 parts
HeadlightMercedes C Class W204ExhaustMercedes C Class W204Water PumpMercedes C Class W204Timing BeltMercedes C Class W204Timing ChainMercedes C Class W204Clutch KitMercedes C Class W204
Live prices£15–£60 each
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