Replacing cats on A4

[Tony Hoffman]

I"m a little late to the party, but I remove them from underneath, sort of
behind. I use about 3 feet of extension, and a swivel. That top one on the
passenger (right) side I put teh swivel on teh end of the 3 footer, then
put an 8" after it with the 13mm socket after that. I've done dozens this
way.

BTW, have your O2's been replaced on the car? The fronts can be replaced
with a generic ford application (4-wire) while the rears are more than
likely a 5-wire (depending on year) and will need to be OEM style if that's
the case. If they are 4-wire as well, you can use generic ones for that as
well. I always buy the bosch, and use the application 1993 Ford F150 5.0L.
These are identical to the OEM Audi ones, with the exception of the plug.
They are $40 through worldpac, makes me wonder why it costs $50 for the
"special" Audi plug.

Tony

On Mon, Oct 31, 2011 at 4:17 AM, Werner Raschdorf <wraschdorf at gmail.com>wrote:

> Ive made progress. Got the bottom 2 nuts off the bolts on both sides from
> below the car, through the wheel wells. The top left is next and the top
> right seems to be the most difficult. Ill keep the list posted. I thought
> that Bosal was the original exhaust supplier to Audi for North American
> cars? They sent me the correct cat for the pax side but the other one has a
> T.D. Plate welded to it. Looks like it is for a turbo diesel. Im calling
> them today to find out what gives.
> Thanks for your input so far!
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