Bosch 18052 Upstream O2 Sensor for Audi A6 A7 S4 S5 Q5 3.0 3.2L Gas 2009-2017 For Sale

Bosch 18052 Upstream Oxygen Sensor Bosch 18052 Upstream Oxygen Sensor Air Fuel Ratio O2 Sensor 5-Wire Wideband ⚠️ CRITICAL FITMENT NOTICE

• Position: Upstream (Pre-Cat / Catalytic Converter Front) — Fits Upstream Left (Bank 2 Sensor 1) or Upstream Right (Bank 1 Sensor 1).
• Engine Application: Designed for 3.0L V6 TFSI (Supercharged) Gasoline and 3.2L V6 FSI (Naturally Aspirated) engines. NOT for 3.0L TDI diesel models.
• Quantity Reminder: V6 engines require one upstream sensor per bank (Left and Right). If replacing both sides, please order a quantity of 2.
• Connector Verification: Please verify your original sensor has a 6-pin male rectangular connector and a 23.62-inch harness length before ordering.

🛡️ Original Equipment (OE) Benchmark

As the pioneer and global leader in oxygen sensor technology, Bosch manufactures sensors to exact OE quality standards. The Bosch 18052 utilizes advanced 5-wire wideband technology for precision air-fuel ratio measurement, fast signal transmission, and long-term emissions stability.

🔌 Direct Fit Installation

• OE-Matching Connector: Pre-wired with direct-fit OE connector for plug-and-play setup.
• No Splicing Required: Correct harness length (23.62 in) avoids wire strain or cutting during installation.

🔩 Built for Extreme Durability

• Stainless Steel Housing: Double-laser welded stainless steel body protects internal components against thermal shock, exhaust corrosion, and moisture intrusion.
• Fast-Acting Heater: Rapidly reaches operating temperature to optimize engine performance and lower cold-start emissions.

🛠️ Pre-Applied Anti-Seize Coating

Features factory pre-coated threads with anti-seize compound out of the box, ensuring smooth threading and preventing thread-galling or seizure in high-temperature exhaust pipes.

📊 Key Technical Specifications Brand & Part Number Bosch 18052 Sensor Type 5-Wire Wideband / Air-Fuel Ratio Sensor Sensor Position Upstream (Upstream Left / Upstream Right) Heated Type Yes (Heated Sensor) Wire Quantity / Terminal Quantity 5 Wires / 6 Blade Terminals Connector Shape & Gender Rectangle / Male Wiring Harness Length 23.62 IN (600 mm) Overall Length 26.80 IN (680.7 mm) Thread Size / Hex Size M18 x 1.5 / 22 mm Housing Material Metal / Stainless Steel 🔢 OEM Part Numbers 06E906265AJ | 06E906265AP | 3921023910 | 392102C220 | 392102G300 | 4L00906262K | 68070689AA 🔄 Brand Cross Reference NTK / NGK: 24380, 27002
DENSO: 2345164
WALKER PRODUCTS: 25025017 🚗 Vehicle Fitment List

Please verify your vehicle's Year, Make, Model, and Engine below before ordering.

🏁 Performance & S Models

• Audi S4: 2010–2016 (3.0L V6 TFSI Supercharged) — Upstream Left / Right
• Audi S5: 2010–2017 (3.0L V6 TFSI Supercharged) — Upstream Left / Right
• Audi SQ5: 2014–2017 (3.0L V6 TFSI Supercharged) — Upstream Left / Right

🚙 SUV Line

• Audi Q5: 2010–2012 (3.2L V6 FSI Naturally Aspirated) — Upstream Left / Right
• Audi Q5: 2013–2017 (3.0L V6 TFSI Supercharged) — Upstream Left / Right

🚘 Executive Sedans & Sportbacks

• Audi A6: 2010–2011 (3.2L V6 FSI) — Upstream
• Audi A6 Quattro: 2009–2015 (3.0L V6 TFSI Supercharged) — Upstream Left / Right
• Audi A7 Quattro: 2012–2015 (3.0L V6 TFSI Supercharged) — Upstream Left / Right

❌ This sensor does NOT fit: 3.0L V6 TDI (diesel), 4.2L V8, 2.0T 4-cylinder engines, or any other engine not listed. Always verify your original part number against the OEM numbers above. 🔧 Installation, Warranty & Troubleshooting

11.1 Installation Advice:

• Install only when the exhaust system is completely cool to prevent injury.
• Use a standard 22mm (7/8") oxygen sensor socket for removal and installation.
• Torque specification: 35–45 Nm. Do not over-tighten.

11.2 Warranty & Shipping Policy:

• Warranty: 1-Year / Unlimited Mileage Limited Warranty.
• Fast Shipping: Orders placed before cut-off time ship Same Day / Next Business Day.
• Returns: 30-Day Money Back Guarantee (Item must be in unused, original packaging).

11.3 Resolves Common Check Engine Light (CEL) Codes:

P0030 P0031 P0032 P0130 P0131 P0132 P0133 P0150 P0151 P0152 P0153 P2195 P2196