Gearbox Malfunction!

[jonathanfenton]

Occasionally i get a gearbox malfunction error and it scrolls from park to N on the dash and flashes, it seems to do this every 6 months or so and a quick clear on VCDS normally fixes it.
Today it wouldn't clear, tried power cycling and clearing both faults from Engine ECU and Gearbox ECU and it came straight back.
Preformed a calibration on the gear selector which failed because it asked me to move shifter to park and i couldn't because it locked its self due to the fault (power cycling unlocked it but VCDS cancelled due to safety reason)

The fault then auto cleared?! It works normally again, so bizzare

Tuesday,05,July,2022,12:44:54:30277
VCDS Version Release 22.3.1 (x64) Running on Windows 10 x64(Parallels)
Ross-Tech: Home


Address 02: Auto Trans Labels: 0CJ-927-156.clb
Control Module Part Number: 4G0 927 153 F HW: 0CK 927 156 Q
Component and/or Version: 0CK 30TDI RdW H01 0004
Software Coding: 100001
Work Shop Code: WSC 02391 785 00200
ASAM Dataset: EV_TCMDL382021 002014 (AU57)
ROD: EV_TCMDL382021_AU49.rod
VCID: 2C5D1609477D72EF43-8079
1 Fault Found:


20779 - Transmission Range Sensor 1/2
P2805 00 [167] - Correlation Error
MIL ON - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Mileage: 174889 km
Date: 2022.07.05
Time: 12:40:58


Engine RPM: 0 /min
Driving position: Sensor malfunction
ATF temperature: 18 °C
Transmission output speed: 0 /min
Voltage terminal 30: 12.3 V
Engine torque: 0 Nm
selected gear: N
Ctrl. mod.: operating condition: Pre-run
Auxiliary pump for transmission: requesting function: No function active
Auxiliary hydraulic pump for transmission oil: current: 0 A
Oil pressure reservoir: pressure: 0.0 bar
Pressure of clutch 1: actual value: 0.0 bar
Pressure of clutch 2: actual value: 0.0 bar
Clutch status: New
Unlearning counter according OBD: 40
Occurrence_counter_over_length_of_life: 8












Tuesday,05,July,2022,12:46:29:30277
VCDS Version Release 22.3.1 (x64) Running on Windows 10 x64(Parallels)
Ross-Tech: Home


Address 01: Engine Labels: 059-907-401-V2.clb
Control Module Part Number: 4G1 907 401 HW: 4G0 907 401 E
Component and/or Version: 3.0TDI EDC17 H14 0005
Software Coding: 1A254012042401030800
Work Shop Code: WSC 15022 002 1048576
ASAM Dataset: EV_ECM30TDI0114G1907401 001006 (AU57)
ROD: EV_ECM30TDI0114G1907401.rod
VCID: 61C3B73D703FEF87A0-8035
1 Fault Found:


8172 - Selector Lever
P0919 00 [039] - Malfunction
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 2
Mileage: 174889 km
Date: 2022.07.05
Time: 12:45:47


Engine RPM: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 16 °C
Intake air temperature: 21 °C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 11.340 V
Unlearning counter according OBD: 40
Engine status: COENG_READY
Engine status-Test_Program_Co Eng st COMPU VERB UBYTE: 1




Readiness: 0 0 0 0 1

[Crasher]

This is on an A7, what is the VIN?

[jonathanfenton]

This is on an A7, what is the VIN?

I’ve pm’d it you mate

[Crasher]

It had the, and I quote, "gearbox oil" changed on 2016-04-29 at 36920 miles then on 2017-10-09 at 70113 miles so how many miles now? It is odd though as by that deception the ATF has not been changed and this is due every 40k so is that a misprint or true? I can't see that it has had the software update 37J8 which MAY be relevant, digging deeper it looks like you may need to fit the revised gear selector unit 0CK 325 110 Q. Personally I would get it on ODIS with Guided Fault finding to find out more information on those two fault codes.

[jonathanfenton]

Yeah it’s due it’s gearbox oil change and is booked in to have it done. Will ask them whilst it’s in if they can update its software.

[jonathanfenton]

Just dropped it off, They’ve also told me it has a recall for emissions? I asked what it was, he said it’s either a software update or it’s something to do with the EGR and he’d find out and let me know.

[jonathanfenton]

Turns out it has a lamba sensor recall which they are ordering and will re-book.

Looking at the invoice it has 2 drain plugs and the oil, no filter quoted? Surely they changed a filter?

Also weirdly they spilt adblu all down the side of the car, I asked why they even touched the adblu and they said “not sure, maybe it was part of the recall checks”

Another quality visit to Preston audi