We dismantle the sensor with the ignition off. Remove the right mudguard of the engine compartment (see Removing the mudguards of the engine compartment).
We shift from the plastic holder, fixed from below on the radiator of the cooling system, the block of the wiring harness of the engine control system.
By pressing the clamp of the harness block By pressing the clamp of the block of the wiring harness of the engine management system..
... we disconnect the blocks of the wiring harness of the engine management system and the wiring harness of the diagnostic oxygen concentration sensor.
We pass the block of the sensor wiring harness through the ring of the ring key "22" and put the key ring on the sensor hexagon.
Turning the key counterclockwise, we turn the sensor out of the hole in the intermediate pipe..
... and remove the diagnostic oxygen concentration sensor.
We install the diagnostic oxygen concentration sensor in the reverse order. To prevent the sensor from "sticking" to the intermediate pipe during the operation of the car, we apply a thin layer of graphite-based anti-seize high-temperature additive on the threaded part of the sensor before installation.