How to replace O2 Sensor
Thread Starter
Newbie
Joined: Apr 2007
Posts: 3
Likes: 0
From: Maryland
1998 CLK 320
How to replace O2 Sensor
I got this error:
P0150 02 Sensor Malfunction (bank 2 sensor 1)
along wit these:
P0304 Cyl 4 Mal
P0306 Cyl 6 Mal
P0305 Cyl 5 Mal
P0300 Multiple Cyl Misfire
From a printout from the emissions computer.
The car has been idling rough and hesitating on take off. I have been able to figure out its the left front....I think. So I orderd the part. How difficult is it to replace? Where is it at? Any help would be greatly appreciated!
P0150 02 Sensor Malfunction (bank 2 sensor 1)
along wit these:
P0304 Cyl 4 Mal
P0306 Cyl 6 Mal
P0305 Cyl 5 Mal
P0300 Multiple Cyl Misfire
From a printout from the emissions computer.
The car has been idling rough and hesitating on take off. I have been able to figure out its the left front....I think. So I orderd the part. How difficult is it to replace? Where is it at? Any help would be greatly appreciated!
MBWorld Fanatic!
Joined: Apr 2005
Posts: 3,784
Likes: 84
From: SCV SoCal
2002 CLK430
The left front O2 sensor is screwed in to the left exhaust bank , the one closest to the engine. Just follow the left side exhaust from the engine back to the electrical part that is screwed into the exhaust pipe.
When I pull a sensor, I let the engine sit overnight, unplug the electrical connector, slip on the O2 sensor socket, and then use a breaker bar. They usually come right out with a breaker bar. On the new sensor, you may want to use antiseize on the threads. Without antiseize, things have been known to get "interesting".
IHTH
When I pull a sensor, I let the engine sit overnight, unplug the electrical connector, slip on the O2 sensor socket, and then use a breaker bar. They usually come right out with a breaker bar. On the new sensor, you may want to use antiseize on the threads. Without antiseize, things have been known to get "interesting".
IHTH
