06K906262C Auto Oxygen Sensor 5-Wire Wideband M18x1.5 For VW Golf Passat Audi A3 TT Skoda Octavia

The 06K906262C wideband lambda sensor is the pre-catalyst regulating probe used across the Volkswagen Group MQB platform with EA888 Gen3 1.8 TSI and 2.0 TSI petrol engines. It is a direct-fit replacement for the Bosch 0 258 027 197 application covering the VW Golf Mk7, Passat B8, Audi A3 and TT ranges.

Unlike a conventional narrow-band sensor, it measures the exact air-fuel ratio over a wide operating range and reports a linear signal to the ECU, allowing precise closed-loop fuel control under all load conditions.

The integrated heater brings the planar ceramic element to operating temperature within seconds of a cold start, allowing the ECU to enter closed-loop control earlier and reducing cold-start emissions. The sensor features a stainless-steel shell, a planar zirconia ceramic element with a vapour-deposited platinum electrode, and a laser-welded protection tube against contamination and thermal shock.

• Five wires, wideband design: the circuits serve the pump cell, the reference (Nernst) cell and the internal heater; the sensor delivers a linear lambda signal to the ECU rather than a switching voltage.
• Regulating probe: fitted before the catalytic converter as the ECU's primary fuel-control input; it is not interchangeable with the post-catalyst diagnostic sensor.
• Direct-fit: D-shape 5-pin plug and pre-terminated 540 mm cable — no cutting or splicing required. Thread pre-greased from the factory.
• Installation position: confirm against the original sensor position on your vehicle. Always compare connector shape, pin count, cable length and thread before ordering.
• Torque: tighten to the vehicle manufacturer's specification (typically 40–55 N·m on an M18 x 1.5 boss). Do not use silicone-based sealant anywhere near the sensor.

Cross-reference numbers are listed for identification only. Always verify physical fitment — connector shape, pin count, cable length and thread size — against your original part before installation.

Vehicle list is compiled from aftermarket catalogue cross-references and is indicative only. Please confirm by OE number and by comparing the original sensor before ordering.