O2 sensor replacement questions

Martin, Gary G MartinGG at aetna.com
Mon Mar 17 03:17:51 EST 2003

There is a special socket with cutout. A tip was posted about tightening a
hose clamp on this socket to add extra support because of the cutout. Also,
a warm engine made mine easy to remove, when cold it would not budge. I
believe the sensor comes with anti-seize on the threads.


-----Original Message-----
From: Scalmanini Steve [mailto:sscalmanini at yahoo.com]
Sent: Monday, March 17, 2003 2:54 AM
To: 200q20v at audifans.com
Subject: O2 sensor replacement questions

My O2 sensor is supposedly out but my mechanic didn't
have one to put in last week as part of a tuneup so I
plan to do it myself ASAP.

Is a common 12-point closed-end wrench appropriate
(ie, won't strip the hex head on the sensor if it's
difficult to break free) of is there a special tool,
like a 6-point socket with a cutout for the wires?

What is a commonly available anti-seize compound to
use to install the new sensor, equivalent to the G5
compound in Bentley (p. 26.3)?  Is Molycoat good

Is there a seal that should be used around the sensor?

Any other watch-out-fors for this task?



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