Change lambda probe n°2 on Audi A3 - 1.6i

Jack, candle, 22mm flat wrench, ratchet and 10mm socket; and lambda sensor.

Raise the rear wheel of the vehicle using the jack and place the jack stand to secure the installation.

Unscrew the screws that support the plastic protection, using the 10mm key.

Lambda probe 2 is located on the right side of the car.

Remove the probe socket holder by pulling it downwards. Slide the socket out of its location towards the groove.

Then disconnect the lambda probe

Locate the lambda probe 2. It is located on the exhaust line, after the catalyst.

Unscrew the lambda probe (22mm flat wrench) and compare it to the new one.

Screw the probe using the 22mm flat wrench. Avoid shocks on the part of the probe that will be in the exhaust line.

Reconnect the probe, respecting the correspondence of the numbers (ranging from 1 to 4) located on the probe and on the socket.

Replace the probe socket bracket.

Tighten the screws that support the plastic protection (10mm wrench).