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Important: Verify connector shape and pins match your original part.
NOx Nitrogen Oxide Sensor for Mercedes W205 & W166 | A0009052809, A0009050108
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NOx Nitrogen Oxide Sensor

Fits Mercedes W205 & W166
Replaces OE: A0009052809, A0009050108
Resolves Symptoms
  • Check Engine Light (SCR/DEF)
  • DEF / AdBlue Warning Msg
  • Engine Limp Mode Warning
  • DPF Regen Refusal
Estimated Delivery Free
Ordered
Nov 11
Prepared
Nov 11-Nov 12
Delivered
Nov 13-Nov 16
Dispatched quickly from local UK warehouses.
2-Year Warranty
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🛡️ Quality Coverage: Protects against any manufacturing defects for 2 full years.

🔄 Free Replacement: Brand-new replacement for free if quality issues occur.

30-Day Return & Refund
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📦 Free Returns: Zero costs to you if the product has quality issues.

💰 Full Refunds: 100% money-back guarantee within 30 days for defective items.

5-Step Fitment Guide
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  1. Check OE: Find original part no. & plug.
  2. Compare Photos: Match plug with our images.
  3. Verify YMM: Confirm via fitment tool.
  4. Review Specs: Check pins & dimensions.
  5. Purchase: Buy confidently once matched!
Review Rewards
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Share an install photo & review to unlock:

  • Under $50 Orders: 3% Off Next Order
  • $50+ Orders: 5% Direct Cashback

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$144.95
  • No hidden fees: What you see is what you pay.
  • Restore performance: Fix issues and drive with confidence.
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If problem with product: Free Returns & Refunds
Check Engine Light? Find Your Symptoms
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🌬️ O2 & A/F Sensors
  • P0134No Activity Detected
  • P0135Heater Circuit Malfunction
  • P0137/38Circuit Low/High Voltage
  • P2195Signal Stuck Lean
  • P0030/31Heater Control Circuit
⛽ Fuel & Air Mixture
  • P0171/74System Too Lean
  • P0172System Too Rich
  • P2096Post-Catalyst Trim Too Lean
  • P0087Fuel Rail Pressure Low
  • P0201-04Injector Circuit Open
♻️ Catalytic Converters
  • P0420Efficiency Below Threshold (B1)
  • P0430Efficiency Below Threshold (B2)
⚡ Ignition / Misfires
  • P0300Random Misfire
  • P0301-06Cylinder-Specific Misfire

Automotive-Leader Brand Products

Vehicle Compatible

 

Product Specifications

Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
Item
Specification
Core Part Number
A0009052809
Interchange: A0009059703, A0009058511, A0009050108, , A000905970A, A0009053000, 0009053000, A0009053606, 0009053606, A0009057000, 0009057000, A0065427218, 0065427218, A0035428818, 0035428818, A2C16442600-291, A3C01067600-609, 5WK96682E
Position
Exhaust System, NOx Sensor (SCR System, Front-mount per user input)
Key Parameters
- Sensor Type: Nitrogen Oxide (NOx) Sensor
- Fitment Type: Direct Replacement
- Number of Pins: 5-Pin
- Connector Shape: Oval
- Voltage: 12V
- Number of Mounting Bores: 2
- Quantity: 1
- Mounting Type: Flange/Surface Mount