Hey guys having a problem with my baby every time i take her for a wash.

i usually get a manual car wash done but no sooner do i leave the place that she sharts jerking and gasping for air.

I can floor the accelerator and the RPM will rise slowly and fall and then rise again .. and the cycle will continue all the while the engine will continue sputtering like its swallowed water.

i usually cover the intake hole (behind the grille) with a plastic sheet before the wash.

When i check with VAG after a wash it get all sort of error codes

VAG-COM Version: Release 311.2-N


Chassis Type: 4D - Audi A8 D2
Scan: 01,02,03,08,15,16,17,35,36,37,45,55,56,65,76

Address 01 -------------------------------------------------------
Controller: 4D0 907 557 J
Component: 4,2L V8/4V MOTR AT D01
Coding: 03263
Shop #: WSC 02314
13 Faults Found:
01088 - Mixture Control Adaptation 2
12-00 - Adaptation Limit (Mul) Exceeded
00561 - Mixture Adaptation
12-00 - Adaptation Limit (Mul) Exceeded
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 35-10 - - - Intermittent
16688 - Cylinder 4 Misfire Detected
P0304 - 35-10 - - - Intermittent
16690 - Cylinder 6 Misfire Detected
P0306 - 35-10 - - - Intermittent
16687 - Cylinder 3 Misfire Detected
P0303 - 35-10 - - - Intermittent
16691 - Cylinder 7 Misfire Detected
P0307 - 35-10 - - - Intermittent
16705 - Engine Speed Sensor (G28): Implausible Signal
P0321 - 35-10 - - - Intermittent
01183 - Warning Light for Catalyst Monitoring (K72)
31-10 - Open or Short to Ground - Intermittent
16685 - Cylinder 1 Misfire Detected
P0301 - 35-10 - - - Intermittent
16689 - Cylinder 5 Misfire Detected
P0305 - 35-10 - - - Intermittent
16505 - Throttle Position Sensor (G69): Implausible Signal
P0121 - 35-10 - - - Intermittent
17978 - Engine Start Blocked by Immobilizer
P1570 - 35-10 - - - Intermittent
Readiness: N/A

Address 02 -------------------------------------------------------
Controller: 4D0 927 156 E
Component: AG4 GETRIEBE 018 D40
Coding: 00000
Shop #: WSC 00000
1 Fault Found:
00526 - Brake Light Switch-F
03-00 - No Signal

Address 03 -------------------------------------------------------
Controller: 4D0 907 379 L
Component: ABS/EDS BOSCH 5 7680
Coding: 0265109043
Shop #: BB 37680
No fault code found.

I do have a small tear in the center muffler and no water is sprayed in the engine compartment.

and this happens quite often but not after every wash but only after a wash.

ideas?

 

Have you opened that to look for any moisture or water marks. The gasket on that thing is ****e and each time someone sprays water with a pressure washer on bottom of the driver's side windshield you are more than likely to get water in there. There are also conectors in there that when wet start causing these probs. Worth a check.

 

Your drains are clogged and there is water in your ECU.

 

how do i fix that/

 

But I think the best way is to run a snake through there, that's what the shop did and I haven't had any problems since then.