(not genuine Audi, but VW content) 2006 2.0TFSI Passat Cat Failure (long)

[laraa at sympatico.ca]

William,

For your question # 2, my answer is "maybe". If one coil pack is dead and
the engine don't shut the fuel on that particular cylinder, then yes the cat
will be red hot when the unburnt fuel will reach it. That's what happened to
our Saab 9-5, and they had to replace the turbo, the downpipe and the
ignition cassette (4 coil packs in a single unit). Pretty hefty bill covered
under warranty. Now the ECU will shut the fuel if it senses any misfire from
a coil pack.

So you may indeed have a case here.

Louis-Alain


-----Message d'origine-----


My questions are thus:

1)  Anyone had luck getting VW to pay for this sort of failure outside of
warranty, even if it is not 100% reimbursed?  Any tips before I contact VW?

2)  Would failing coil packs have triggered the damage to the cat?  I know
the engine would have been operating out of tolerance.  Could that be an
argument to getting VW to "fess up" to this problem?

3)  Is the "can" closest to the flange a 1st stage catalytic converter?

4)  Bad design from Team Doorhandle or cheap-a$$ed parts sourcing?

your input is desired.

Bill M.
A man of two cities, Atlanta & Detroit