Mercedes C Class Spark Plugs
Replacement spark plugs — fitment, symptoms & live UK prices.
Fits Mercedes C Class — check your reg/VIN to confirm

From £18.95 · 6 live listings on eBay
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4X IRIDIUM PLATINUM SPARK PLUGS FOR MERCEDES C-CLASS C180 KOMPRESSOR 2002-07 #1
£18.95View ›

4X IRIDIUM TIP SPARK PLUGS FOR MERCEDES BENZ C-CLASS C180 CGI 2011 ONWARDS
£18.95View ›

4x Iridium Upgrade Spark Plugs Fits Mercedes C Class (204) 1.8 #2
£18.95View ›

SPARK PLUGS X4 FITS MERCEDES C E M R S CLASS CLK SLK BOSCH 0242135509 YR7MPP33
£23.40View ›

4x Genuine Mercedes-Benz OEM Spark Plugs A2701590700 - M270 & M274 Petrol Engine
£29.81View ›

4x Genuine Mercedes Spark Plugs A2701590700 For W176 C117 X156 W205 W246 Chassis
£29.81View ›
Will it fit my Mercedes C Class?
Petrol only. Gap, heat range and thread length are engine-specific — the wrong plug can misfire or, in the worst case, contact the piston.
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 spark plugs needs replacing
- Misfire or rough idle
- Poor economy or sluggish acceleration
- Difficulty starting
- Engine warning light, misfire code
Fitting it yourself
Usually one of the easier jobs — coil packs off, plugs out with a spark plug socket. Don't over-tighten into an alloy head.
Torque: Typically 20–30 Nm depending on plug/head — over-tightening can strip the thread.
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