Been using the audi again recently, threw at the EML on yesterday and just had a look:

Saturday,22,August,2015,20:38:47:54741
VCDS Version: Release 15.7.0 Running on Windows 7 x86
www.Ross-Tech.com

                Address 01: Engine       Labels: 078-907-551-AZA.lbl
Control Module Part Number: 8D0 907 551 M
  Component and/or Version: 2.7l V6/5VT     G   0002
           Software Coding: 06711
            Work Shop Code: WSC 87119 
                      VCID: 3467116904EEBA9E82-5140
6 Faults Found:

16684 - Random/Multiple Cylinder Misfire Detected
            P0300 - 35-00 -
16686 - Cylinder 2
            P0302 - 35-00 - Misfire Detected
16689 - Cylinder 5
            P0305 - 35-00 - Misfire Detected
17865 - Exhaust Gas Temp Sensor 2 (G236)
            P1457 - 35-10 - Open or Short to Plus - Intermittent
17544 - Fuel Trim: Bank 1 (Add)
            P1136 - 35-00 - System too Lean
17546 - Fuel Trim: Bank 2 (Add)
            P1138 - 35-00 - System too Lean

Readiness: 0000 0001


This is on a euro a6 running a mbox, no map changes but I've hacked out a bunch of the emissions stuff that causes it to fault when you run a mbox on a euro A6, been running happily for 6 months or so. The only recent change is I've just had miltek downpipes with 100cell cats and a rs6 system fitted, so I've been driving it harder than before.

I'm going to change the plugs and fuel filter, then log it and see how it's looking. Anyone got any other suggestions for what would cause these?

Thanks, vacume leak presumably means the low pressure side of the intake system, so hopefully will be a simple fix.

I'll sort the egt, would prefer them working if possible.