Folks,

Would someone has any ideas how to remove the old O2 sensor from the car?

Working from underneath the car is really suck. I use a six sided 22mm box wrench and add on another extension but the dawn thing still won't budge. Does any one here have a lift and live around Albany NY area that would lend a hand to an old Mercedes enthusiast?
Alex

Soak it w/ Liquid Wrench for several minutes, give it a couple of good smacks w/ a mallet and curse a lot.

Make sure that you're turning it the correct way to loosen it ... lefty loosey. If so, try a hydraulic jack under your cheater bar to increase the torque. Remember to use Never Seize on the threads of the new O2 sensor ... normally it comes already applied to the threads of the Bosch O2 sensors.

__________________
Fred Hoelzle

Heat that sucker with a torch if you can...I had to do just that with another one of my cars. Asbestos gloves to remove (obviously)

Come down to Hartford and I'll do it for ya' !!

__________________
Jim

1992 500E
2007 CLK63
2003 Audi RS6
2001 Audi allroad

When I was a youngster, my Dad's response when I said "I can't" was "Can't never accomplished anything."

As a previous poster said, liquid wrench and some good smacks with a good sized hammer. If it is in a location where you can do it, I would think that a six point box end wrench would let you get a little rougher with it. A cheater pipe over the end of the wrench if necessary. It's hard to know what will work without seeing its position.

When I run out of enough curse words, I try making up new ones.

Go at it with determination, a cheater pipe and you will get it!

Best of luck,

Folks,

Thank you for all your humors and tricks and thank you Jim500E for offering a hand, I may take you up on this some days, you know what it is to own a 16V!!! spent a lot of time in the garage...

Came home from work today and looked all over for the propane torch, found the tank but where the hec is the valve part, found another tank still the valve is no where to be found, jumped in the car headed to Home Depot, bought a much hotter torch Acetyline, this little thing is real hot, it can even cut metal if you wanted too, heated up the exhaust pipe around the old O2 and in not time the pipe was red hot, soon after that the old O2 finally succumbed.

However, because the thread was welded to the O2, once I've got the O2 out and so did the thread, I had a real hard time putting the new O2 inplace, but luckly found an old spark plug tap that has the same thread and by re-tapping the thread, the new O2 went in very well.

Unfortunately, the new O2 did not help my 16V idle blue syndrome. Oh well that's life I guess.........

Alex

A side note:

A friend who has a muffler shop advised me of their usual repair when an O2 sensor takes the threads out with it. They weld in one of those sparkplug anti-fouling adaptors, used for old oil burning engines. they say it works like a champ.

__________________
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.

In case any ever needs an O2 sensor bung:
http://store.summitracing.com/partdetail.asp?part=HLY-534-49&N=120%20304126
For $6 I keep a spare in my stash.

Decent Alex...I forgot to tell you that I had to tack weld the new sensor in because of the same ruined threads that you found you had.

Also, in my case, a new O2 sensor didn't cure my high idle...it turned out to be a loose injector allowing air in. Still haven't fixed it yet.

Albany is about 2 hrs from Hartford...even less to Granby, CT off I-91 for big German car fest on Aug 28th...e-mail me if you are interested in joining in.

__________________
Jim

1992 500E
2007 CLK63
2003 Audi RS6
2001 Audi allroad

Chevota, that's a great retro-fit to have I think, I'll get one myself.
Jim's500E, I used to live in connecticut, my in-laws are still there and I oftenly go to visit them. German car fest sounds interesting to see, but I don't know if I can make it, just too many projects this Summer. I may change my mind though. Thanks for the heads up.

Alex