here is the VAG-COM diagnosis. I tried the search but did not find a similar problem. Last night it came on after I felt the car shaking but only did it a few times. I drove it for a while today and on the way home the shaking continued and now it does it every time I hit the accelerator. BTW it is an 02 1.8t MT5 Quattro

VAG-COM Version: Release 311.2-N


Chassis Type: 8E - Audi A4 B6
Scan: 01,02,03,08,09,15,16,17,26,36,37,45,46,55,56,63,76

Address 01 -------------------------------------------------------
Controller: 8E0 909 518 F
Component: 1.8L R4/5VT G 0003
Coding: 0016701
Shop #: WSC 63351
1 Fault Found:
17772 - Cylinder 4 Ignition Circuit: Open Circuit
P1364 - 004 - No Signal/Communication - Intermittent
Readiness: 0000 0000

Address 03 -------------------------------------------------------
Controller: 8E0 614 517 A
Component: ABS/ESP allrad 1726
Coding: 04275
Shop #: WSC 06435
No fault code found.

Address 08 -------------------------------------------------------
Controller: 8E0 820 043 Q
Component: A4 Klimaautomat 1015
Coding: 00000
Shop #: WSC 63351
1 Fault Found:
01274 - Air Flow Flap Positioning Motor (V71)
41-10 - Blocked or No Voltage - Intermittent