Quote Originally Posted by AudiPilot View Post
I’m currently looking at buying a Jul 03 build, 904916... I’ve combed through the records, and unless the TC was done during its years as an Audi CPO (for which I have no records), it appears to be on the original TC/Trans. No codes currently. Is the car on borrowed time at this point? Most recent owner was meticulous and kept all records, just don’t have all of the earlier history.
They are all on borrowed time. No difference than any other performance car on the road; simply depends on which part is in question. With that said on the RS6 5H-24 slushbox, there are updated metal clutches that replace the orginal fiber clutch material.

Meticulous owner is a good start, but more importantly how the vehicle is both driven and serviced is even more important. VAG calls out no service interval on the transmission, as most/all Euro mfg's do as well: Life time Fluid. Very few owners see past the printed word, and even fewer service shops are willing to make the case on servicing beyond OEM specs. Separate topic in itself.

Drive the car: WOT in TIP mode to ensure the trans holds the power. Drain a small sample of the trans oil to check for excessive contamination.

Will likely need a fluid and filter service. Once the oil stays clean (rinse lather, repeat as necessary). Do a full service every few years - a complete flush - needs about 14-18 qts. Get a TCU tune. These cars shift far to softly to begin with.

When if finally fails, get a performance rebuild or do a MT swap.

Have fun, drive it like it's the 300KPH car it is.