stuck inbound oxygen sensor - PeachParts Mercedes-Benz Forum

Hit Man X · #8 11-20-2012, 02:06 PM

Quote:

Originally Posted by Air&Road

If you can get some Aerokroil penetrant, spray it on, let it set a few minutes and then use a drift if necessary to transfer some SOLID blows with a BFH! If it doesn't come loose after that, it will take the blue flame wrench (acetylene torch.)

Also, if at all fittable, use a box end wrench for a good solid grip on it.

Best advice here!

Kroil is awesome, helped me remove the block heater from my SD about a month ago without much hassle. Just required some soaking over a few days.

There are six pointed combination wrenches around too, they are hard to find but do bite a bit harder on six pointed fasteners like O2 sensors.

Remember that anti seize upon reinstall...