A/T Adapter plug replacement: Have to remove O2 sensor.
Thread Starter
Senior Member
Joined: Dec 2001
Posts: 494
Likes: 13
From: Amber waves of grain.
2000 CLK430 Cabriolet
A/T Adapter plug replacement: Have to remove O2 sensor.
A/T Adapter plug replacement: Have to remove O2 sensor.
First have to release metal clip, to free the sensor connector,
then remove the O2 sensor. It will still be a tight fit to get
your hands in there to work the adapter loose, but it's impossible
without removing the sensor.
First have to release metal clip, to free the sensor connector,
then remove the O2 sensor. It will still be a tight fit to get
your hands in there to work the adapter loose, but it's impossible
without removing the sensor.
Last edited by Pancho; Mar 6, 2010 at 11:58 PM.
Junior Member
Joined: Jul 2007
Posts: 27
Likes: 0
From: Raleigh, NC, USA
'03 430a cabriolet
A/T Adapter plug replacement: Have to remove O2 sensor.
First have to release metal clip, to free the sensor connector,
then remove the O2 sensor. It will still be a tight fit to get
your hands in there to work the adapter loose, but it's impossible
without removing the sensor.
First have to release metal clip, to free the sensor connector,
then remove the O2 sensor. It will still be a tight fit to get
your hands in there to work the adapter loose, but it's impossible
without removing the sensor.
How do you remove the electrical plug from the adapter plug. I can't seem to turn the adapter plug using the tab? Thanks for any help.
Thread Starter
Senior Member
Joined: Dec 2001
Posts: 494
Likes: 13
From: Amber waves of grain.
2000 CLK430 Cabriolet
As I recall...
The entire beige plastic piece is a locking collar with a tab. This locking collar locks the male connector in place so that it doesn't come loose. The entire beige collar turns, but the male plug does not turn. When the plug is locked in place, the tab on the collar is in about the 11 O'clock position--you will feel a sort of notch as it locks in. To remove the plug, you need to rotate the collar counter clockwise until the tab is in about the 7 O'clock position, so that you can pull out the male plug. Even though mine was coated slick with fluid, it was still tough to get the collar to turn. I took a long screw driver, and bent it just so, and shaped it to use as a lever to wedge between the collar and the transmission, and I was able to break it loose. You can feel a sort of notch let go when it releases.
Best of luck.
The entire beige plastic piece is a locking collar with a tab. This locking collar locks the male connector in place so that it doesn't come loose. The entire beige collar turns, but the male plug does not turn. When the plug is locked in place, the tab on the collar is in about the 11 O'clock position--you will feel a sort of notch as it locks in. To remove the plug, you need to rotate the collar counter clockwise until the tab is in about the 7 O'clock position, so that you can pull out the male plug. Even though mine was coated slick with fluid, it was still tough to get the collar to turn. I took a long screw driver, and bent it just so, and shaped it to use as a lever to wedge between the collar and the transmission, and I was able to break it loose. You can feel a sort of notch let go when it releases.
Best of luck.
Junior Member
Joined: Jul 2007
Posts: 27
Likes: 0
From: Raleigh, NC, USA
'03 430a cabriolet
As I recall...
The entire beige plastic piece is a locking collar with a tab. This locking collar locks the male connector in place so that it doesn't come loose. The entire beige collar turns, but the male plug does not turn. When the plug is locked in place, the tab on the collar is in about the 11 O'clock position--you will feel a sort of notch as it locks in. To remove the plug, you need to rotate the collar counter clockwise until the tab is in about the 7 O'clock position, so that you can pull out the male plug. Even though mine was coated slick with fluid, it was still tough to get the collar to turn. I took a long screw driver, and bent it just so, and shaped it to use as a lever to wedge between the collar and the transmission, and I was able to break it loose. You can feel a sort of notch let go when it releases.
Best of luck.
The entire beige plastic piece is a locking collar with a tab. This locking collar locks the male connector in place so that it doesn't come loose. The entire beige collar turns, but the male plug does not turn. When the plug is locked in place, the tab on the collar is in about the 11 O'clock position--you will feel a sort of notch as it locks in. To remove the plug, you need to rotate the collar counter clockwise until the tab is in about the 7 O'clock position, so that you can pull out the male plug. Even though mine was coated slick with fluid, it was still tough to get the collar to turn. I took a long screw driver, and bent it just so, and shaped it to use as a lever to wedge between the collar and the transmission, and I was able to break it loose. You can feel a sort of notch let go when it releases.
Best of luck.
