Mercedes C Class Oxygen Sensor
Replacement oxygen sensor — fitment, symptoms & live UK prices.
Fits Mercedes C Class — check your reg/VIN to confirm
From £18.00 · 6 live listings on eBay
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Mercedes C-Class C43 Lambda Oxygen Sensor A0005421600
£18.00View ›
Mercedes C-Class C43 Lambda Oxygen Sensor A0005421600
£18.00View ›
Lambda O2 Oxygen Sensor for Mercedes-Benz A C E S-Class 0015404717 0025402317
£18.99View ›
Lambda Oxygen Sensor Rear Fits Mercedes C Class CLS E GLK S SL SLK SMART FORTWO
£21.59View ›
Lambda Oxygen Sensor Front Aim Fits Mercedes C-Class 2.0 2.2 4 Wire
£22.50View ›
MERCEDES C CLASS OXYGEN LAMBDA SENSOR 2.1L OM651.921 A0009053503 14-21
£24.00View ›
Will it fit my Mercedes C Class?
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 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.
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Live pricesFrom £18.00
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