HomeEmission Control > SensorsNTK 24318 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right
Part #: 24318

NTK 24318 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right

Direct Fit 5-Wire A/F Sensor, Upstream Left, Upstream, and Upstream Right
⚙️ 104 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Direct Fit 5-Wire A/F Sensor, Upstream Left, Upstream, and Upstream Right
🚗Fitment: Audi, Bentley, and Volkswagen, A4, A4 Quattro, A8 Quattro, Beetle, Continental, EuroVan, Golf, Golf City, Jetta, Jetta City, Passat, Phaeton, Touareg, TT, and TT Quattro
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Overview of NTK Direct Fit 5-Wire A/F Sensor 24318

The NTK Direct Fit 5-Wire Air/Fuel Ratio Sensor 24318 is designed for precise air-fuel mixture monitoring in select Audi, Bentley, and Volkswagen vehicles. This heated sensor ensures accurate emissions control and engine performance by providing real-time data to the engine control unit.

  • Heated sensor type for faster response times
  • Specific fit for Audi A4, A4 Quattro, A8 Quattro, Bentley Continental, and Volkswagen models including Beetle, Golf, Jetta, Passat, and more
  • 5-wire configuration for reliable signal transmission
  • 59.0-inch wiring harness length for optimal installation flexibility
  • Thread diameter of 18.0 mm and thread length of 0.38 inches
  • Mounting bracket not included

About the Direct Fit 5-Wire A/F Sensor Product Line

The NTK Direct Fit 5-Wire A/F Sensor product line focuses on delivering sensors that match OEM specifications for direct replacement applications. The 5-wire heated sensor design provides enhanced durability and quicker warm-up times compared to unheated sensors, making it suitable for emission control systems in specific vehicle models. This product line ensures compatibility and performance consistency for vehicles requiring precise air/fuel ratio monitoring.

Detailed Product Description

This NTK Air/Fuel Ratio Sensor 24318 features a heated sensor element that allows it to reach operating temperature quickly, improving the accuracy of air-fuel mixture readings shortly after engine start. The 5-wire design supports stable and accurate signal output, essential for modern engine management systems. With a wiring harness length of 59.0 inches, this sensor provides sufficient length for straightforward installation in the engine bay. The sensor’s thread diameter of 18.0 mm and thread length of 0.38 inches ensure a secure and proper fit in the exhaust system. This sensor is specifically designed for direct fitment on select Audi, Bentley, and Volkswagen models, including the Audi A4, A8 Quattro, Bentley Continental, and Volkswagen Golf, Jetta, Passat, and others.

Common Applications and Issues Addressed

  • Restores accurate air/fuel ratio readings for improved engine performance
  • Helps resolve check engine light codes related to oxygen sensor faults
  • Reduces emissions by providing precise data to the engine control unit
  • Improves fuel efficiency by ensuring optimal combustion
  • Prevents drivability issues caused by faulty air/fuel sensors

Installation Notes and Tips

Ensure the vehicle is compatible with the NTK 24318 sensor by verifying make and model fitment. The 59.0-inch wiring harness length allows for flexible routing during installation. Use proper tools to avoid damaging the sensor threads (18.0 mm diameter). Since the mounting bracket is not included, confirm existing hardware is suitable for secure installation. Follow manufacturer torque specifications to prevent leaks or sensor damage.

Quality Assurance and Warranty

NTK sensors are manufactured to meet OEM standards for durability and performance. The Direct Fit 5-Wire A/F Sensor 24318 undergoes rigorous testing to ensure reliable operation under various driving conditions. Warranty coverage details should be confirmed with the point of purchase or NTK directly, as warranty terms may vary.

BrandNTK
Part Number24318
PositionDirect Fit 5-Wire A/F Sensor, Upstream Left, Upstream, and Upstream Right
Wiring Harness Length59.0
Sensor TypeHeated
Thread Length0.38
Universal Or Specific FitSpecific
Wire Quantity5
Thread Diameter18.000
Mounting Bracket IncludedNo

This part fits 104 vehicles. Search below:

YearMakeModelDrive TypeLitersCylindersFuel TypePositionNotes
2010VolkswagenGolf City2.0LL4GASUpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2009VolkswagenGolf City2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2009VolkswagenJetta City2.0LL4GASUpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2008VolkswagenGolf City2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2008VolkswagenJetta City2.0LL4GASUpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2007VolkswagenGolf City2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2007VolkswagenJetta City2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2007VolkswagenTouareg4.2LV8Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2007VolkswagenTouareg4.2LV8Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor
2006AudiA41.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2006AudiA8 Quattro4.2LV8Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2006AudiA8 Quattro4.2LV8Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor
2006AudiTTFWD1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2006VolkswagenGolf2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2006VolkswagenGolf1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2006VolkswagenPhaeton4.2LV8Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2006VolkswagenPhaeton4.2LV8Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor
2006VolkswagenTouareg4.2LV8Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2006VolkswagenTouareg4.2LV8Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor
2005AudiA41.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2005AudiA4 Quattro1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2005AudiA8 Quattro4.2LV8Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2005AudiA8 Quattro4.2LV8Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor
2005AudiTTFWD1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2005VolkswagenBeetle2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2005VolkswagenBeetle1.8LL4UpstreamB1S1; AWP Eng; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor
2005VolkswagenGolf2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2005VolkswagenGolf1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2005VolkswagenJetta1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2005VolkswagenPassat1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2005VolkswagenPhaeton6.0LW12UpstreamCylinders 1-3, Bank 1 Sensor 1, OE Equivalent Design; Direct Fit 5-Wire A/F Sensor
2005VolkswagenPhaeton6.0LW12UpstreamCyls. 7-9; B3S1; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor
2005VolkswagenPhaeton6.0LW12UpstreamCyls. 10-12; B4S1; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor
2005VolkswagenPhaeton4.2LV8Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2005VolkswagenPhaeton4.2LV8Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor
2005VolkswagenTouareg4.2LV8Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2005VolkswagenTouareg4.2LV8Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor
2004AudiA41.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2004AudiA4 Quattro1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2004AudiA8 Quattro4.2LV8Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2004AudiA8 Quattro4.2LV8Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor
2004AudiTTFWD1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2004VolkswagenBeetle2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2004VolkswagenBeetle1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2004VolkswagenGolf2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2004VolkswagenGolf1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2004VolkswagenJetta2.0LL4UpstreamB1S1; To Chassis # 9M-3-999-000; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor
2004VolkswagenJetta1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2004VolkswagenPassat1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2004VolkswagenPhaeton6.0LW12UpstreamCyls. 10-12; B4S1; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor
2004VolkswagenPhaeton6.0LW12UpstreamCylinders 1-3, Bank 1 Sensor 1, OE Equivalent Design; Direct Fit 5-Wire A/F Sensor
2004VolkswagenPhaeton6.0LW12UpstreamCyls. 7-9; B3S1; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor
2004VolkswagenPhaeton4.2LV8Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2004VolkswagenPhaeton4.2LV8Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor
2004VolkswagenTouareg4.2LV8Upstream RightOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2004VolkswagenTouareg4.2LV8Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor
2003AudiA41.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2003AudiA4 Quattro1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2003AudiTTFWD1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2003BentleyContinental6.0LW12Upstream LeftCompatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor
2003VolkswagenBeetle2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2003VolkswagenBeetle1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2003VolkswagenEuroVan2.8LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2003VolkswagenGolf2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2003VolkswagenGolf1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2003VolkswagenJetta2.0LL4UpstreamB1S1; BEV Eng; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor
2003VolkswagenJetta2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2003VolkswagenJetta1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2003VolkswagenPassat1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002AudiA41.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002AudiA4 Quattro1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002AudiTTFWD1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002AudiTT QuattroAWD1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002VolkswagenBeetle2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002VolkswagenBeetle1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002VolkswagenEuroVan2.8LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002VolkswagenGolf2.8LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002VolkswagenGolf2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002VolkswagenGolf1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002VolkswagenJetta2.8LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002VolkswagenJetta2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002VolkswagenJetta1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2002VolkswagenPassat1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001AudiA41.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001AudiA4 Quattro1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001AudiTT1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001AudiTT Quattro1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001VolkswagenBeetle2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001VolkswagenBeetle1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001VolkswagenEuroVan2.8LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001VolkswagenGolf2.8LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001VolkswagenGolf2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001VolkswagenGolf1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001VolkswagenJetta2.8LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001VolkswagenJetta2.0LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001VolkswagenJetta1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2001VolkswagenPassat1.8LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2000VolkswagenGolf2.8LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2000VolkswagenGolf1.8LL4UpstreamB1S1; AWW Eng; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor
2000VolkswagenJetta2.8LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
2000VolkswagenJetta2.0LL4UpstreamB1S1; AVH, AZG Engs; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor
2000VolkswagenJetta1.8LL4UpstreamB1S1; AWW Eng; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor
1999VolkswagenGolf2.8LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor
1999VolkswagenJetta2.8LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

022906265077906262A077906265AB079906262F07C906262R1715817191172291723717250173131735117361234-5045234-5074234-5106234-5112234-5115234-512175-332475-333275-356975-357475-358475-385475-405394860612902OS2404OS2412SG1571SG1579

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.