Removing oxygen sensor downstream of catalytic converter

WARNING: This page is about a different car, the 2016 Porsche Macan and 2015 Porsche Macan. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Incorrect handling of oxygen sensors

Damage to oxygen sensors
Different exhaust emission behavior

→ Do not remove the plastic cap on the thread until just prior to fitting.

→ Protect oxygen sensors from impact of any kind.

→ Do not kink or twist the cables when screwing in the sensors.

→ Do not re-use dirty or damaged components.

Information

The procedure for removing and installing is described for one side as an example. The procedure for the other side is practically identical.

Remove oxygen sensor.

1.1. Release and disconnect electric connector -1- .
1.2. Loosen electric line -2- from the holder -3- .

1.3. Unscrew oxygen sensor -4- using crow foot wrench Nr.189-1 or socket insert a/f 17 T10491 -5- .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.