Remove Oxygen Sensor Behind Catalytic Converter
WARNING: This page is about a different variant/trim than selected.
CAUTION:
Hot components
- Risk of burns
- → Let hot components cool down.
- → Wear personal protective gear.
CAUTION:
Risk of damage to sensor if handled incorrectly!
- → Do not remove the plastic cap on the thread until just prior to fitting the sensor. The grease used on the thread must never get into the connector.
- → Protect sensors - before and after fitting - against mechanical shocks.
- → Sensors that were dropped on the floor must not be used owing to the risk of a broken ceramic insulator.
- → The cables must not be twisted or kinked when the sensors are screwed in. Avoid pulling on the cable and connector.
- → Cleanliness in the housing of the plug connections is of utmost importance for the oxygen sensor to function properly. Particles of dirt can impair the function or tie sensor. The connector must therefore be protected against any and all types of soiling.
- → Sensors with a soiled or damaged connector must no longer be used.
- → Protect the cables and connectors when carrying or moving the exhaust system with the sensors already fitted.
- → High-pressure cleaning equipment must not be used in the area of the sensors and plug connections.
- → Contact and corrosion agents, e.g. Stabilant, must not be applied to the plug contacts of the oxygen sensors.
Information
Special tool 9866 Support
- For better access in the engine compartment, use > 9866 - support .
- The support -1- can - be fitted instead of the torque support.
- The engine can then be moved to the left or right by turning it at the hexagon (a/f 171. -Arrows-
Information
- Corroded components must be pre-treated with anti-rust agent or heat.
Information
The > 3337 - ring wrench set for oxygen sensor is the ideal tool.
Oxygen sensor tool
Information
The procedure for removing and installing is described for one side as an example. The procedure for the other side is almost identical.
- Disconnect electric line. -1-
- 1.1 Open holder -2- and disengage, release and disconnect electric plug connection for O2S behind cat. converter -3-
- 1.2 Disengage electric line -1- from clip. -4-
Electric line for O2S behind cat. converter
- Remove O2S behind cat. converter -1-
.
- 2.1 Open line clip -2- and disengage electric line. -3-
- 2.2 Unscrew O2S behind cat. converter -1- .
- 2.3 Guide out and remove O2S behind cat. converter -1- and electric line. -3-
O2S behind cat. converter