2016 S6 won't start or crank

[TappaNuKegga]

Hi All,

A mutual friend is encountering issues after his S6(2016 Prestige 59k miles) had been sitting for 2 months. He's considering just trading it into carmax. There are now some talks of me buying it instead of CarMax, if the price is right.

The car still won't crank over despite putting in a new(albeit, not OEM Audi) battery last week. When I press the ignition I can feel the starter jolt the engine a bit, but it mainly just lurches the engine for a millisecond then gives up.

It has a fault code "5456 - Starter will not turn - Jammed or Electrical Malfunction". Seems strange for a 59k mile car to have a bad starter. Is this a common issues or is it more likely that the engine has seized?

Many thanks!



Sent from my HD1905 using Tapatalk

[Audisthesia]

No other errors?

[brad281]

Did he clear the codes after replacing the battery?

Sent from my SM-A716V using Tapatalk

[TappaNuKegga]

No other errors?

Did he clear the codes after replacing the battery?

Nope he didn't clear the codes, so was able to find a bunch from back in November/December. I'll post log shortly if you'd like the take a look. You guys are awesome.

Sent from my HD1905 using Tapatalk

[brad281]

Nope he didn't clear the codes, so was able to find a bunch from back in November/December. I'll post log shortly if you'd like the take a look. You guys are awesome.

Sent from my HD1905 using Tapatalk

Capture the old codes, then clear them out and try to start it again.

I was getting a bunch of misfire codes/running rough and parked it for a couple weeks until I had time to take it in to get looked at. Went to start the car and the battery had died. Replaced the battery and was still getting the same issues. My mechanic told me to clear the codes before driving it again. It drove fine and never had the misfires again. Battery failures can cause some odd things on these cars.

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[TappaNuKegga]

Capture the old codes, then clear them out and try to start it again.

I was getting a bunch of misfire codes/running rough and parked it for a couple weeks until I had time to take it in to get looked at. Went to start the car and the battery had died. Replaced the battery and was still getting the same issues. My mechanic told me to clear the codes before driving it again. It drove fine and never had the misfires again. Battery failures can cause some odd things on these cars.

Sent from my SM-A716V using Tapatalk

Thanks for the tip, I'll definitely try clearing out the codes and starting her up.

Here are the logs. I deleted a bunch of the filler lines to try to keep it small.


-------------------------------------------------------------------------------
Address 01: Engine (------CTGE) Labels:. 06E-907-551-CGW.clb
Part No SW: 4G0 906 014 D HW: 4H0 906 014
Component: 4.0l V8TFSI / H63 0001

33 Faults Found:
5456 - Starter Will Not Turn
P3054 00 [036] - Jammed or Electrical Malfunction
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 40
Date: 2021.11.24
Time: 22:34:24

Engine RPM: 0.00 /min

9007 - Fuel Pressure Regulator Valve; Bank 2 (N276)
P129B 00 [036] - Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:03

Engine RPM: 0.00 /min

19320 - Temperature Sensor for Engine Cover
P194E 00 [032] - Signal too High
Intermittent - Not Confirmed - Tested Since Memory Clear

10258 - Vehicle Speed Sensor
P0501 00 [036] - Implausible Signal
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2022.01.21
Time: 14:20:02

Engine RPM: 0.00 /min

14197 - Cam Adjustment Actuator B; Cylinder 5
P11B3 00 [096] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear

14206 - Cam Adjustment Actuator B; Cylinder 8
P11BE 00 [096] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear

14191 - Cam Adjustment Actuator B; Cylinder 3
P11AB 00 [096] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear

14245 - Exhaust Cam Adjustment Actuator B; Cylinder 5
P11C8 00 [100] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:04

Engine RPM: 0.00 /min

14254 - Exhaust Cam Adjustment Actuator B; Cylinder 8
P11CE 00 [100] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:04

Engine RPM: 0.00 /min

14239 - Exhaust Cam Adjustment Actuator B; Cylinder 3
P11C4 00 [100] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:04

Engine RPM: 0.00 /min

14236 - Exhaust Cam Adjustment Actuator B; Cylinder 2
P11C2 00 [100] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:04

Engine RPM: 0.00 /min

14221 - Cam Adjustment Actuator A; Cylinder 5
P11B1 00 [096] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear

14230 - Cam Adjustment Actuator A; Cylinder 8
P11BD 00 [100] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:04
Engine RPM: 0.00 /min

14215 - Cam Adjustment Actuator A; Cylinder 3
P11A9 00 [096] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear

14212 - Cam Adjustment Actuator A; Cylinder 2
P11A5 00 [100] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:04
Engine RPM: 0.00 /min

14269 - Exhaust Cam Adjustment Actuator A; Cylinder 5
P11C7 00 [100] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:04
Engine RPM: 0.00 /min

14278 - Exhaust Cam Adjustment Actuator A; Cylinder 8
P11CD 00 [100] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:04
Engine RPM: 0.00 /min

14263 - Exhaust Cam Adjustment Actuator A; Cylinder 3
P11C3 00 [100] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:04
Engine RPM: 0.00 /min

14260 - Exhaust Cam Adjustment Actuator A; Cylinder 2
P11C1 00 [100] - Elec. Malf. or Open Circuit
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:04
Engine RPM: 0.00 /min

9803 - No Communications with Parking Assist Control Module A
U0159 00 [032] - -
Intermittent - Not Confirmed - Tested Since Memory Clear

4717 - Body Control Module (Central Electric)
U0140 00 [032] - No Communications
Intermittent - Not Confirmed - Tested Since Memory Clear

4720 - Body Control Module (Central Electric 2)
U0141 00 [032] - No Communications
Intermittent - Not Confirmed - Tested Since Memory Clear

4629 - ECM Power Relay Load Circuit
P068A 00 [032] - Opens Too Early
Intermittent - Not Confirmed - Tested Since Memory Clear

17262 - Terminal 30
U140A 00 [032] - Open Circuit
[New feature! Extended UDS fault detail is only supported by current gen. interfaces]
Intermittent - Not Confirmed - Tested Since Memory Clear

5650 - Low Pressure Fuel Sensor (G410)
P2539 00 [101] - Open Circuit
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:03
Engine RPM: 0.00 /min

22593 - Fuel Level Sensor Circuit
P0461 00 [096] - Implausible Signal
Intermittent - Not Confirmed - Tested Since Memory Clear

10203 - Random/Multiple Cylinder Misfire Detected
P0300 00 [101] - -
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.11.24
Time: 05:14:18
Engine RPM: 1150.00 /min

10591 - Cylinder 1
P0301 00 [101] - Misfire Detected
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.11.24
Time: 05:14:18
Engine RPM: 1081.00 /min

10592 - Cylinder 2
P0302 00 [101] - Misfire Detected
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.11.24
Time: 05:14:18
Engine RPM: 1131.00 /min

7648 - Secondary. Air Inj. Sys. Flow/Pressure Sens Bank 1
P2432 00 [039] - Short to Ground
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:03
Engine RPM: 0.00 /min

4130 - Manifold / Barometric Pressure Sensor (G71) / (F96)
P0108 00 [036] - Signal too High
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:04
Engine RPM: 0.00 /min

11288 - Manifold Pressure / Boost Sensor 2 (G447)
P0242 00 [036] - Signal too High
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.12.02
Time: 21:41:04
Engine RPM: 0.00 /min

Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels:. 4G0-907-379-V2.clb
Part No SW: 4G0 907 379 S HW: 4G0 907 379 S
Component: ESP9 Premium H01 0530

32 Faults Found:
261632 - Brake Boost Pressure Sensor
C054A 00 [109] - Implausible Signal
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.11.24
Time: 23:48:44

438272 - Brake Boost Pressure Sensor
C054A 00 [035] - Implausible Signal
Not Confirmed - Tested Since Memory Clear

260864 - Brake Boost Pressure Sensor
C054A 00 [109] - Implausible Signal
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2022.01.21
Time: 14:20:01

[TappaNuKegga]

264192 - Brake Boost Pressure Sensor
C054C 00 [046] - Short to Plus
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.11.24
Time: 21:49:46


263680 - Implausible Data Received from Pressure Sensor for Brake Booster
U043E 00 [046] - -
[New feature! Extended UDS fault detail is only supported by current gen. interfaces]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Date: 2021.11.24
Time: 21:49:45

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels:. 4H0-907-063-V2.clb
Part No SW: 4H0 907 063 DM HW: 4H0 907 063 AM
Component: BCM1 2.0 H20 0311

5 Faults Found:
01309 - Power Steering Control Module (J500)
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 3
Fault Frequency: 1
Reset counter: 104
Time Indication: 0
Date: 2021.11.17
Time: 17:08:55

01309 - Power Steering Control Module (J500)
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 6
Fault Frequency: 1
Reset counter: 104
Time Indication: 0
Date: 2021.11.17
Time: 17:08:55
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 1
Reset counter: 116
Date: 2021.11.24
Time: 20:15:23

Control Module temperature: 18 °C
Voltage terminal 15: 11.840 V
Velocity_vehicle_reference: -0.01 m/s
Longitudinal_acceleration_vehicle_reference: 0.00 m/s²

138752 - Function Restriction due to Implausible Message(s)
U1112 00 [008] - -
[New feature! Extended UDS fault detail is only supported by current gen. interfaces]
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 1
Reset counter: 104
Date: 2021.11.17
Time: 17:08:56

Control Module temperature: 19 °C
Voltage terminal 15: 12.520 V
Velocity_vehicle_reference: -0.01 m/s
Longitudinal_acceleration_vehicle_reference: 0.00 m/s²

[skiptowncat]

That's a helluva list, try terracleaning the engine

[TappaNuKegga]

That's a helluva list, try terracleaning the engine

Haha yeah looking at those posts now through Tapatalk is impossible. My phone started to steam. I'll trim that list down to the important stuff

EDIT: Trimmed log down

[Audisthesia]

Save them all to a file, clear all the errors. Double check the battery. Then try and start again. Then rescan for codes. You have a ton of electrical related signal codes, many of which can be caused by low/bad battery.

[qcrazy]

Seems like a wiring/connection issue to me. Make sure the battery terminals are tight.

Assuming so, then I would look at grounds. Trace the battery ground and make sure that connection is tight. Then, based on the codes, I would check the ground for the ECU. That is ground 645. If you see any corrosion on a ground point, clean it up.

Screenshot_20220324-205543_Drive.jpg

[Alabama]

The car still won't crank over despite putting in a new(albeit, not OEM Audi) battery last week. When I press the ignition I can feel the starter jolt the engine a bit, but it mainly just lurches the engine for a millisecond then gives up.

OEM does not matter, correct size does. Should be H7, H8 or H9. Eventually should be recoded by VCDS or equivalent to extend battery life, but that shouldn't be causing the immediate problem. Sitting two months in a garage or out in sub-zero cold?

[S6Ralph_Maldo]

I had a bunch of those codes when I had a blown fuse in the engine compartment fuse box (underneath the ECU). It all stemmed from a cut wire that grounded out. My AC compressor shaft had broken off from the transmission and was spinning around eventually cutting a wire to a sensor in that area blowing a very important fuse in the fuse box. Every time I tried replacing the fuse it would blow whenever I turned the ignition on which was my first indicator of an electrical issue. It would appear that most of your codes listed are electrical related so I would start looking at fuses in the engine bay compartment. T30 is also located in the engine bay, but it is underneath the hood cowl and strut brace, worth checking this area too. Post back your findings and let us know what you find, if anything.