Skip to product information
2Pcs Air Fuel Ratio & O2 Sensor for Mercedes CLA250 GLA250 & Infiniti QX30 2.0L Turbo | 234-5158 234-4839
1/7

2Pcs Air Fuel Ratio & O2 Sensor

for Mercedes CLA250 GLA250 & Infiniti QX30 2.0L Turbo
Replaces OE: 234-5158 234-4839
Resolves Symptoms:
Persistent Check Engine Light
Rough Idle
Poor Fuel Economy
Lean Hesitation
Check if your car is compatible This helps guarantee fitment of parts.
Delivery Free
Aug 10 - Aug 13 +
🚚 Fast US Local: Dispatched quickly from our local US warehouses for swift delivery.
2-Year Warranty
+
🛡️ Quality Coverage: Protects against any manufacturing defects for 2 full years.
🔄 Free Replacement: We will provide a brand-new replacement for free if any quality issues occur.
30-Day Return & Refund
+
📦 Free Returns & Exchanges: Zero costs to you if the product has any quality issues.
💰 Full Refunds: 100% money-back guarantee within 30 days for defective items.
Review Rewards & Cashback
+

Share an install photo & review to unlock tier rewards:

🥈 Under $50
3% Off Next Order
🥇 $50+ Orders
5% Direct Cashback
🔥 Tip: Buy a Combo Set to easily hit $50 and unlock 5% Cashback!

💡 How to claim: Email a screenshot of your review to our support team.

$65.95
  • No other fees; this is the final payment price
  • Get rid of your car's malfunctions and start a pleasant driving journey
  • Visa
  • Mastercard
  • American Express
  • Discover
  • JCB
  • PayPal
If problem with product: Free Returns & Refunds
Check Engine Light? Find Your Symptoms
+
🌬️ 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
🚛 NOx Sensors & SCR
  • P2200/02Sensor Circuit / Signal Low
  • P229FCircuit Range/Performance
  • P207FReductant Quality Perf.
  • 46F2/4D16BMW SCR Efficiency Faults
🛑 ABS & Wheel Speed
  • C1021Front Wheel Speed Sensor
  • C1025Sensor Signal Erratic
  • C1207ABS Pump Overrun
  • C0561System Disabled

Automotive-Leader Sensors

Vehicle Compatible

Year
Make
Model
Engine/Displacement
2017-2019
Infiniti
QX30
2.0L L4 (Turbo)
2013-2019
Mercedes-Benz
B250
2.0L L4 (Turbo)
2014-2019
Mercedes-Benz
CLA250
2.0L L4 (Turbo)
2014-2019
Mercedes-Benz
CLA45 AMG
2.0L L4 (Turbo)
2015-2019
Mercedes-Benz
GLA250
2.0L L4 (Turbo)
2015-2019
Mercedes-Benz
GLA45 AMG
2.0L L4 (Turbo)
2016-2020
Mercedes-Benz
Metris
2.0L L4 (Turbo)

 

Product Specifications

Warranty & Support: 2 Years + Pre-sale Load Test + 24/7 Technical Support
Item
Specification
Core Part Number
234-5158
Interchange: 2345158, 0085422918, 0095425518, 0095425618, 009542561864, 0095425918, 0095426018, 0095426318, 226935DC0A, 22693HG00C
Position
Exhaust System, Upstream (Pre-Catalytic Converter)
Key Parameters
- Connector Gender: Male
- Sensor Type: Heated Wide-Band Oxygen Sensor
- Thread Diameter: 0.711 IN
- Wire Quantity: 5 Wires
- Wiring Harness Length: 21.46 IN
- Grade Type: Regular
- Fit Type: Specific
Core Part Number
234-4839
Interchange: 2344839, 234 4839, 0075426318, 007542631865, 226A05DD0A
Position
Exhaust System, Downstream (Post-Catalytic Converter)
Key Parameters
- Connector Gender: Female
- Mounting Type: Threaded
- Sensor Type: Heated Narrow-Band Oxygen Sensor
- Thread Diameter: 0.708 IN
- Wire Harness Length: 12.44 IN
- Wire Quantity: 4 Wires
- Grade Type: Regular
- Fit Type: Specific

 

Package Content :

2PCS (1*234-5158 Upstream+1*234-4839 Downstream) Oxygen Sensor