vtraudt

I am stuck.
I can't figure out a way to remove the B2 S1 (driver side, upstream) O2 sensor. Space is SO tight, worse than anything I have seen before (2.7T for example).
Need tips on how to get it out (have code).
Car on jacks.

ANY suggestions?

georgeb944

The Bentley manual says to remove the exhaust pipe, then remove the sensor from the pipe.

SloopJohnB@mac.com

Don't believe everything you read.

SloopJohnB@mac.com

I have not done that particular sensor, but IIRC there have been multiple discussion of removing difficult 02 sensors from the top with a series of taped-together extensions and swivel joints.

STFA more.

vtraudt

That's just as bad (assuming the exhaust/downpipe bolts are rusted solid and hard to access).

vtraudt

I don't. But nothing to read in your post.
Something still better than nothing.

pearlwhitesix

The driver's side sensor is very easy compared to the pass side. Just remove the coolant tank and the sensor is straight down.

Having one of these makes it easy:
http://www.ecstuning.com/ES5026/

The pass side sensor I have tried twice to remove and haven't been able to get it yet. Will be giving it another go next month when I do the oil change.

SloopJohnB@mac.com

Some thing can be worse than something. If you went for the exhaust drop first, that's worse than nothing.
Keep reading.

Gsrob

Those wrenches certainly make it easier to get at the O2 sensors but can be had for much cheaper than ECS. I think I paid like $12 for mine from Advance Auto. For something I may use once a year, that's more than adequate.

vtraudt

Just checked from above: driver side indeed easy from top (just need to dig out the above tool. For those that need to save money so they can buy performance parts for their Audis: I have been using this one for several years at 1/4 of the ECS price:
http://www.harborfreight.com/3-8-eig...nch-97177.html