KAVRONEX Bosch 0258017016 / A0035427018 Wideband Lambda Oxygen Sensor LSU 4.9 – 5 Wire Upstream for Mercedes-Benz W212 W176 W246 M272

KAVRONEX Wideband Lambda Oxygen Sensor – LSU 4.9 | 5-Wire Upstream

Cross-Reference: Bosch 0258017016 / Mercedes-Benz A0035427018

Restore precise air-fuel ratio control and eliminate rough idle, poor fuel economy, and failed emissions tests with the KAVRONEX LSU 4.9 Wideband Lambda Sensor. Engineered to OEM specification and validated against Bosch reference standards, this sensor delivers the accurate, real-time exhaust feedback your engine management system demands.

Key Features

• OEM-Grade Accuracy: LSU 4.9 wideband technology for precise λ (lambda) measurement across the full air-fuel range
• 5-Wire Design: Integrated heater circuit for rapid warm-up and stable signal output from cold start
• Direct OEM Replacement: Drop-in fit for upstream (pre-cat) position — no modifications required
• Durable Construction: High-temperature resistant housing and ceramic sensing element built for long service life
• Plug-and-Play: Matches OEM connector and wiring configuration for hassle-free installation

Vehicle Compatibility

• Mercedes-Benz E-Class W212
• Mercedes-Benz A-Class W176
• Mercedes-Benz B-Class W246
• Mercedes-Benz with M272 V6 Engine

OEM Cross-Reference Numbers

• Bosch: 0258017016
• Mercedes-Benz: A0035427018

Specifications

• Type: Wideband Lambda / Air-Fuel Ratio Sensor
• Wires: 5
• Position: Upstream (Before Catalytic Converter)
• Sensor Technology: LSU 4.9
• Brand: KAVRONEX

Always verify fitment against your vehicle's VIN and existing sensor part number before ordering.