that's weird, never really looked at that before now, this was done 2 years before I bought the car, but can only assume VMTP know enough to put the right box in and that this is a typo on the invoice.

It lasted 7 years and 66,000 miles like this!

would have thought the boxes would need to different to cope with power difference which may explain why this one maybe should have lasted longer, its not relevant now really but just wondered

I agree, but surely the wrong box would throw up all sorts of problems before that, I can imagine the long list of error codes!

I'll try to get underneath on Monday again and have a look for a stamp, but for now am going to assume this is more likely a typo by a service receptionist, not a wrong gearbox being fitted

ah well enjoy your stag do anyway:D

the filter and bits we bought & fitted this week (ordered based on 4.2 gb) all fit the gearbox fine, would they be the same for both?

I need to do some reserch. I don't have much experiance of the HP19.

Spoke to brother who tried flushing the oil, when getting the parts from Audi he is pretty sure it was an HP24 or HP24a, the gearbox is stamped with a plate and the code he thinks was ECZ, but this is from memory so might be slightly out.

The parts were ordered by chassis number, so must be for the right box, they fitted, thereby must be the right box, right?

There are loads of codes ECH,DEY,ECG, ETX,ETN,FEG, FAZ,FBA,FBB, FBE,FBG,FUU, FBH,FGS,FUM, GDD,GLA ECZ, ECY, ESX

There are only 2 types appearance wise shown on VAGCAT

http://www.vagcat.com/p/B153/300600.png

Codes are normally 01L3000 41 or 42 or 43 then a letter or two
Thinking about what Mike said the codes would certainly be different for an A8 Vs an S8 due to the final gearing but ive yet to find an article that clearly explains the vagueries of the detail in the various codes

A further update to this - ZF now have a rather useful online catalogue similar to VAGcat called WEBcat - if you use the link below -
ZF WEBcat
Then you can select Audi and the D2 A8 and your model and it will give you the correct gearbox spec for your particular car -
mine is actually a 5 HP 19 FLA and then it gives the Audi Code also which is 01V 300 043K on mine. I have checked the label that I took a pic of on my new VAG gearbox when it arrived and this is spot on. might be a useful one for the gearbox sticky Mike? +++

Good find Neil, added to sticky.