Differences in Audi Electromechanical Steering Racks for B8.5 S4

[atbro199]

My original electromechanical steering rack died in my 2016 S4, non dynamic steering, and I bought an AEE remanufacturered rack because a new OEM is more than twice the price. The reman unit that was provided to me has different part numbers all over it, including the large embedded part number on the rack itself.

The large, raised part number on the AAE reman unit is 4G1423105F. On the other side, the part number on the electronic section is 8R0909144B. The number 4G1423105F when googled appears to be more related to the A6/A7.
On my broken unit, the large raised part number is 8K1423105A and the electronic section is 8K0909144B.

Are the part numbers for non-dynamic eletromechanical steering across the A4/A5/A6/A7/Q5 platforms the same? Or should I exchange it and roll the dice for another?

 

[stefdds]

Do you have a Auto-Scan with the original rack installed; if so please post that complete and unedited auto scan so the forum can see all the relevant information on your S4.

I don't believe that reman rack is going to work out for you.

 

[atbro199]

Sunday,27,April,2025,17:14:47:42314
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 24.7.0.0 (x64)
Data version: 20240715 DS356.3
www.Ross-Tech.com


VIN: WAUDGAFL1GA001177   License Plate:
Mileage: 65520km-40712mi   Repair Order:



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: FL-AU48 (8R0)
Scan: 01 03 05 08 09 15 16 17 19 22 36 3C 42 44 46 47 52 53 56 5F
          62 6C 72 A9

VIN: WAUDGAFL1GA001177   Mileage: 65520km-40712miles

01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
22-AWD -- Status: OK 0000
36-Seat Mem. Drvr -- Status: OK 0000
3C-Lane Change -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: Malfunction 0010
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
56-Radio -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
6C-Back-up Cam. -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
A9-Struct. Borne Sound -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (J623-CTUB)       Labels:. 06E-907-551-CGW.clb
   Part No SW: 8K5 907 551 G    HW: 4G0 907 551 A
   Component: 3.0l V6 TFSIH07 0007 
   Revision: --H07---    CVN: 14D7E3E6
   Coding: 0A190034052600060000
   Shop #: WSC 06208 000 00000
   ASAM Dataset: EV_ECM30TFS0218K5907551G 001007
   ROD: EV_ECM30TFS021_AU48.rod
   VCID: 3A7B6DF4BDFAD346CD-806E
   VINID: 9D19545D159C0574400010471C90F2D3D5

No fault code found.
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 8K0-907-379-V2.clb
   Part No SW: 8K0 907 379 CP    HW: 8K0 907 379 CP
   Component: ESP8 quattro  H09 0020 
   Revision: --------    Serial number: --------------
   Coding: 281D1A01
   Shop #: WSC 06325 000 00000
   VCID: 0919C238A09C08DE94-805C

2 Faults Found:
01309 - Power Steering Control Module (J500)
            013 - Check DTC Memory
             Freeze Frame:
                    Fault Status: 01101101
                    Fault Priority: 6
                    Fault Frequency: 8
                    Reset counter: 242
                    Mileage: 65420 km
                    Time Indication: 0
                    Date: 2025.04.26
                    Time: 11:41:38

             Freeze Frame:
                    Hex Value: 0x0000
                    Hex Value: 0x0782
                    Hex Value: 0x000C
                    Hex Value: 0xC09A
                    Hex Value: 0x0000

00473 - Control Module for Elect. Park/Hand Brake (J540)
            013 - Check DTC Memory
             Freeze Frame:
                    Fault Status: 01101101
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 242
                    Mileage: 65527 km
                    Time Indication: 0
                    Date: 2025.04.27
                    Time: 16:21:58

             Freeze Frame:
                    Hex Value: 0x0000
                    Hex Value: 0x0082
                    Hex Value: 0x001A
                    Hex Value: 0x0297
                    Hex Value: 0x0000


-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
   Part No SW: 8K0 907 064 KM    HW: 8K0 907 064 KM
   Component: BCM2 2.0      H15 0711 
   Revision: 00002001   
   Coding: 0F814040000000000000
   Shop #: WSC 06325 000 00000
   VCID: 0501CE088C846CBEF0-8050

   Subsystem 1 - Part No SW: 8K0 905 852 E    HW: 8K0 905 852 E
   Component: J764 ELV MLB  H40 0046
   Serial number: 3215000094137007   

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:. 8Kx-820-043-3Z.clb
   Part No SW: 8K1 820 043 AQ    HW: 8K1 820 043 AQ
   Component: KLIMA 3 ZONEN H04 0122 
   Revision: C1000000    Serial number: 01280520152946
   Coding: 6600228000
   Shop #: WSC 06325 000 00000
   VCID: 77FDB4C0C6680E2EF2-8022

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 8K0-907-063.clb
   Part No SW: 8K0 907 063 DH    HW: 8K0 907 063 DH
   Component: BCM1 1.0      H16 0103 
   Revision: 08016001    Serial number: 00001081873102
   Coding: 26000091863CAFE0240048C300003D0D0F9C9308A2090221000008004000030100000030000000
   Shop #: WSC 06325 000 00000
   VCID: 78FFB7FCCB760156FB-802C

   Subsystem 1 - Part No SW: 8K1 955 119 B    HW: 8K1 955 119 B  Labels: 1KX-955-119.CLB
   Component: MITSUBA270415  H19 0461
   Serial number: 1504230603924       
   Coding: 004577

   Subsystem 2 - Part No SW: 8U0 955 559 C    HW: 8U0 955 559 B  Labels: 8U0-955-559.CLB
   Component: G397_RLFS  H06 0004
   Serial number: 20318862           
   Coding: 02005D

   Subsystem 3 - Part No SW: 8K0 941 531 AS    HW: 8K0 941 531 AS
   Component: E1 - LDS  H03 0031
   Serial number: 00000000000805150514

   Subsystem 4 - Part No SW: 4G0 907 410 A    HW: 4H0 907 410 A
   Component: USHL4.2  H30 0030
   Serial number: 00000000095Z0B99802C

   Subsystem 5 - Part No SW: 4H0 907 658     HW: 4H0 907 658
   Component: AQ_Hum_Sensor  H03 0003
   Serial number: 3CB8CBA7000000000001

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 8K0-959-655.clb
   Part No SW: 8K0 959 655 Q    HW: 8K0 959 655 Q
   Component: AirbagVW-AU10 H51 0812 
   Serial number: 003NDD138M88   Dataset Number: 8K0909602S  0001
   Coding: 303844354730383131304A55304C384B3053
   Shop #: WSC 06325 000 00000
   ASAM Dataset: EV_AirbaECUVWAUDI010 003114
   ROD: EV_AirbaECUVWAUDI010_003_AU48.rod
   VCID: 4B953830E2605ACE66-801E

   Seat occupied recognition:
   Subsystem 1 - Part No SW: 8K0 959 339 C    HW: 8K0 959 339 C
   Component: BF-Gewichtss.  H02 0040
   Serial number: 5810000R150000LNH0

   Crash sensor for side airbag: driver side:
   Serial number: 6334MSME510A055A9

   Front Passenger's Side Airbag Crash Sensor:
   Serial number: 6344MSME511B6948J

   Rear Side Airbag Crash Sensor (on driver's side):
   Serial number: 6352QSME16544F46M

   Passenger side rear thorax airbag crash sensor:
   Serial number: 6362QSME39583866Q

   Crash sensor for front airbag: driver side:
   Serial number: 63732SME684C3678A

   Crash sensor for front airbag: front passenger side:
   Serial number: 63832SME684C3E5CL

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:. 8K0-953-568.clb
   Part No SW: 8K0 953 568 M    HW: 8K0 953 568 M
   Component: Lenks.Modul   H04 0005 
   Revision: --------    Serial number: 90372OE5000E1
   Coding: 000016
   Shop #: WSC 06325 000 00000
   VCID: 4487130CC73E95B6A7-8010

   Component: E221 - MFL  H03 0004

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:. 8T0-920-xxx-17.clb
   Part No SW: 8K0 920 983     HW: 8K0 920 983
   Component: KOMBIINSTR.   H35 0567 
   Revision: 00100000    Serial number: 63-664M5G     
   Coding: 8BB509008301D705020000
   Shop #: WSC 06325 000 00000
   VCID: 72EB85D4AD0A6B06C5-8026

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 8T0-907-468.clb
   Part No SW: 8R0 907 468 P    HW: 8R0 907 468 D
   Component: GW-BEM 5CAN-M H11 0060 
   Revision: 1Z120030    Serial number: 3041Z155150A11
   Coding: 80C303FF00
   Shop #: WSC 06325 000 00000
   VCID: 4C973B2CEF6E5DF66F-8018

   Subsystem 1 - Part No SW: 8T0 915 181     HW: 8T0 915 181
   Component: J367-BDMHella  H03 8041
   Serial number: 9159866403         

No fault code found.

-------------------------------------------------------------------------------
Address 22: AWD (J492)       Labels: 8K0-907-163.clb
   Part No SW: 8K0 907 163 B    HW: 8K0 907 163 A
   Component: 4 Wheel Drive H15 0100 
   Serial number: 002203150001031 Dataset Number: 8K0909104D  0025
   ASAM Dataset: EV_AllWheelDiffeQSPCAN 003019
   ROD: EV_AllWheelDiffeQSPCAN.rod
   VCID: 2F6D4CA076B806EE6A-807A

No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr (J136)       Labels:. 8T0-959-760.clb
   Part No SW: 8K0 959 760 D    HW: 8K0 959 760 D
   Component: MEM-FS        H06 0077 
   Revision: AA000000    Serial number: 00000145006518
   Coding: 00581B00000000000000
   Shop #: WSC 06325 000 00000
   VCID: 3B7568F0BAC0EA4ED6-806E

No fault code found.

-------------------------------------------------------------------------------
Address 3C: Lane Change (J769)       Labels:| 5Q0-907-566.clb
   Part No SW: 8T0 907 566 B    HW: 8T0 907 566 B
   Component: SWA Master    H05 0071 
   Serial number: 0369752517 Dataset Number: 8K0909535J  0029
   Coding: 010211
   Shop #: WSC 06324 000 00000
   ASAM Dataset: EV_LaneChangAssis 001020
   ROD: EV_LaneChangAssis_AU21.rod
   VCID: 3F8D1CE0A6D8F66EFA-806A

   Lane change assistance control module 2:
   Subsystem 1 - Part No SW: 8T0 907 568 B    HW: 8T0 907 568 B
   Component: SWA Slave  H05 0071
   Serial number: 0369128828         
   Coding: 010211

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:. 8K0-959-793.clb
   Part No SW: 8T0 959 793 P    HW: 8T0 959 793 G
   Component: TSG FA        H10 0305 
   Revision: --------    Serial number: --------------
   Coding: 011C13204E00410001
   Shop #: WSC 06325 000 00000
   VCID: 56A3D94421A21726C9-8002

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 8K0-909-144.clb
   Part No SW: 8K0 909 144 P    HW: 8K0 909 144 B
   Component: RCEPS         H43 0510 
   Revision: 00001000    Serial number: 0012807362 Dataset Number: 8K0909852L  0026
   Coding: 100000010001
   Shop #: WSC 06324 000 00000
   ASAM Dataset: EV_RCEPSAU48X 008018
   ROD: EV_RCEPSAU48X_008.rod
   VCID: 3E7361E4A1D2FF66F1-806A

2 Faults Found:
7341600 - Position Sensor for Motor
          C10AD 29 [00001000] - Signal Implausible
          [New feature! Extended UDS fault detail is only supported by current gen. interfaces]
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 27
                    Mileage: 65527 km
                    Date: 2025.04.26
                    Time: 16:26:54

                    Write only channel

7341570 - Position Sensor for Motor
          C10AD 29 [10001001] - Signal Implausible
          [New feature! Extended UDS fault detail is only supported by current gen. interfaces]
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 65418 km
                    Date: 2025.04.26
                    Time: 11:17:17

                    Write only channel


-------------------------------------------------------------------------------
Address 46: Central Conv. (J393)       Labels:. 8K0-907-064-46.clb
   Part No SW: 8K0 907 064 KM    HW: 8K0 907 064 KM
   Component: BCM2 2.0      H15 0711 
   Revision: 00002001    Serial number: 0368488565   
   Coding: 0106023A00FA404580B0013200000000
   Shop #: WSC 06324 000 00000
   VCID: 0501CE088C846CBEF0-8050

   Subsystem 1 - Part No SW: 8K0 959 719 B    HW: 8K0 959 719
   Component: GTO BF  H01 0080
   Serial number: 00000000000000997965

   Subsystem 2 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HO  H05 1501

   Subsystem 3 - Part No SW: 8K0 959 591 C    HW: 8K0 959 591
   Component: J245 PS051  H08 0043

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System (J525)       Labels:. 8T0-035-223-BOM.clb
   Part No SW: 8T1 035 223 A    HW: 8T1 035 223 A
   Component: DSP Prem      H05 0030 
   Revision: 00005001    Serial number: 94813044491806
   VCID: 2D5156A874B474FE58-8078

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:. 8K0-959-792.clb
   Part No SW: 8T0 959 792 P    HW: 8T0 959 792 G
   Component: TSG BF        H10 0305 
   Revision: --------    Serial number: --------------
   Coding: 011C13204E00410001
   Shop #: WSC 06325 000 00000
   VCID: 55A1DE483CA41C3EC0-8000

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake (----)       Labels: 8K0-907-801-V2.clb
   Part No SW: 8K0 907 801 N    HW: 8K0 907 801 J
   Component: EPB-4         H02 0005 
   Revision: --------    Serial number: 10000000545880
   ASAM Dataset: EV_ParkiBrake 001028
   ROD: EV_ParkiBrake_AU48.rod
   VCID: 3A7B6DF4BDFAD346CD-806E

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (R)       Labels:. 4F0-035-0xx-56.clb
   Part No SW: 4G0 035 082 G    HW: 4G0 035 082
   Component: Radio U SIRIU H66 0133 
   Revision: AB001007    Serial number: 156E50F8269933
   Coding: 020007010000000001
   Shop #: WSC 06325 000 00000
   VCID: 2447B38C277EB5B687-8070

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:. 4E0-035-6xx-5F.clb
   Part No SW: 8R1 035 746 H    HW: 8R1 035 746 G
   Component: H-BNT-NA      H43 0937 
   Revision: --------    Serial number: 523F00FB005776
   Coding: 110200000206A1EF55028B5E00000403140000000000000000
   Shop #: WSC 06325 000 00000
   VCID: 3C776BECBFCEED76DF-8068

   Subsystem 1 - Part No: 8R0 060 884 CS
   Component: NAR 2015  1201

   Subsystem 2 - Part No SW: 8R0 919 604 A    HW: 8R0 919 604 A
   Component: DU7 High  H42 0104
   Serial number: A130EV0F3364870     

   Subsystem 3 - Part No SW: 8T0 919 611 L    HW: 8T0 919 611 C
   Component: E0380 Bedient  H02 0030
   Serial number: 00000002249970     

   Subsystem 4 - Part No: 8R0 060 961 G
   Component: CD-Database  6208

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388)       Labels:. 8K0-959-795.clb
   Part No SW: 8T0 959 795 Q    HW: 8T0 959 795 H
   Component: TSG HL        H08 0305 
   Revision: --------    Serial number: --------------
   Coding: 010C13204000210001
   Shop #: WSC 06325 000 00000
   VCID: 59B9D27850BC385EE4-800C

No fault code found.

-------------------------------------------------------------------------------
Address 6C: Back-up Cam.        Labels: 8T0-907-441.clb
   Part No SW: 8T0 907 441 C    HW: 4L0 907 441 B
   Component: J772__Rearview      0040 
   Revision: --H09---    Serial number: 525PA8-JA391UD
   Coding: 1000006
   Shop #: WSC 06325 000 00000
   VCID: 387F77FC4BF6C1563B-806C

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389)       Labels:. 8K0-959-794.clb
   Part No SW: 8T0 959 795 Q    HW: 8T0 959 795 H
   Component: TSG HR        H08 0305 
   Revision: --------    Serial number: --------------
   Coding: 010C13204000210001
   Shop #: WSC 06325 000 00000
   VCID: 59B9D27850BC385EE4-800C

No fault code found.

-------------------------------------------------------------------------------
Address A9: Struct. Borne Sound (J869)       Labels: 4H0-907-159.clb
   Part No SW: 8K0 907 159     HW: 4H0 907 159 A
   Component: SAS-GEN 2     H06 0006 
   Serial number: 150514201908
   ASAM Dataset: EV_SoundActuaGen2AU64X 003010
   ROD: EV_SoundActuaGen2AU64X_003_VW37.rod
   VCID: 72EB85D4A50A6B06C5-8026

No fault code found.

End-------------------------(Elapsed Time: 04:12)--------------------------

 

[Ziddywerks]

8K0909144B was the original. The only number that matters is the engraved number on the unit. None of the other ones matter, unless your rack was assembled from 2 or 3 different ones to make one good one. If the vehicle wasnt totaled it would be covered under the extension, but because its totaled it no longer applies. By the looks of the codes you have that rack is shot to shit.

 

[atbro199]

8K0909144B was the original. The only number that matters is the engraved number on the unit. None of the other ones matter, unless your rack was assembled from 2 or 3 different ones to make one good one. If the vehicle wasnt totaled it would be covered under the extension, but because its totaled it no longer applies. By the looks of the codes you have that rack is shot to shit.

So the reman unit I have now isn’t correct for the S4, hence the numbers starting with a different set of characters? I’ll get another reman unit then with the correct numbers.

And yes. Unfortunately in my efforts to save my car after a minor accident resulted in this BS, so no extended warranty for me despite water intrusion into the rack.

 

[Ziddywerks]

So the reman unit I have now isn’t correct for the S4, hence the numbers starting with a different set of characters? I’ll get another reman unit then with the correct numbers.

And yes. Unfortunately in my efforts to save my car after a minor accident resulted in this BS, so no extended warranty for me despite water intrusion into the rack.

Yes agreed. 4G is a6 and a7, 8K is a4 s4.

 

[atbro199]

Thanks for the help!!

 

[PhilipCurrier]

My original electromechanical steering rack died in my 2016 S4, non dynamic steering, and I bought an AEE remanufacturered rack because a new OEM is more than twice the price. The reman unit that was provided to me has different part numbers all over it, including the large embedded part number on the rack itself.

The large, raised part number on the AAE reman unit is 4G1423105F. On the other side, the part number on the electronic section is 8R0909144B. The number 4G1423105F when googled appears to be more related to the A6/A7.
On my broken unit, the large raised part number is 8K1423105A and the electronic section is 8K0909144B.

Are the part numbers for non-dynamic eletromechanical steering across the A4/A5/A6/A7/Q5 platforms the same? Or should I exchange it and roll the dice for another?

i was wondering what you ended up doing. I have the part number 8k1423105a as a replacement but it was also a reman but it parts from different racks as there were different numbers throughout it. i have a 2014 s4 and the rack that came off of it was a 8k1423105 that was stamped with a 8k1423105xx from the people who also reman that one. Do you have a social you could help me out on? this is my first time using this forum.

 

[PhilipCurrier]

Replacing my steering rack due to water getting in it and im over the 125k miles / 10 years warranty.

I have the part number 8k1423105a as a replacement but it was also a reman but it parts from different racks as there were different numbers throughout it. i have a 2014 s4 and the rack that came off of it was a 8k1423105 that was stamped with a 8k1423105xx from the people who also remanufactured that one. I have non dynamic steering and the one i bought came off of a low mileage 2015 a4. Dealership said i should have 8k1423055cg on the car but clearly i dont.

vin:
WAUDGAFL4EA018200

 

[atbro199]

I had bad luck with this process. In total, I went through three AEE reman racks because the first one was bad out of the box (made a grinding noise), so I obtained a second one that ended up being 4G1423105F that I was asking about in this thread because somebody swapped it and put it in the wrong box, so I exchanged it with AEE for third, a fresh reman that ended up being installed with zero issues.

There are many part numbers all over the rack so it's very confusing. One of the main things to know is if you need a rack for dynamic steering. My car didn't come with dynamic so it made things a little easier. From what I can tell, the only number that really matters is the ETCHED number in the body of the rack. This etched number should match the sticker (that has a QR code on it) for OEM racks. My renam racks didn't have this sticker but the etched part number still existed. I believe the part number of the reman rack I finally installed was 8K1423055AS. The original OEM from the broken unit was 8K1423055CA. But as somebody else said, these reman parts could be put together by Frankenstein, parts from multiple units into one. At the end of the day, I was screwed out of a several hunred due to installation labor costs from that first malfunctioning rack so as long as my new one works, I'm OK with it.

You'll need to code the part to your car for it to work.

Hope this helps.

 

[PhilipCurrier]

Than you for the reply, so you were saying the new etched in part number is what i should be referring to as my part number insteadof the old etched in one? also how did you know to go with that part number in the end? also sorry i have some pictures of the new used one i ordered and the old one but couldnt figure out how to attach them to this thread so if youd like i could email those for better understanding. I ordered off of LKQ and got there 6 month warranty so if i had ti i could return i believe. what part number do you think i should be getting?

 

[atbro199]

Yes. The etched number represents the overall part. I found this out by using the Audi parts search and confirmed it. I don’t have a picture of any of my etched part numbers but here is an eBay ad with the etched number on picture #9. https://ebay.us/m/rgqyaG

If your part came from an A5 you’re probably good, as long as it matches your dynamic/non-dynamic option.

AudiZine might be a good place to ask this as well.

 

[PhilipCurrier]

Yes. The etched number represents the overall part. I found this out by using the Audi parts search and confirmed it. I don’t have a picture of any of my etched part numbers but here is an eBay ad with the etched number on picture #9. https://ebay.us/m/rgqyaG

If your part came from an A5 you’re probably good, as long as it matches your dynamic/non-dynamic option.

AudiZine might be a good place to ask this as well.

okay because i thought someone had said in a forum that the ratios between the A class racks were different and not made for the perfomance from S class cars so the s class ones were different. In the 9th pic it has 2 etched out part numbers are you referring to the newer looking etched out part number which is light grey or the darker older one

 

[PhilipCurrier]

Yes. The etched number represents the overall part. I found this out by using the Audi parts search and confirmed it. I don’t have a picture of any of my etched part numbers but here is an eBay ad with the etched number on picture #9. https://ebay.us/m/rgqyaG

If your part came from an A5 you’re probably good, as long as it matches your dynamic/non-dynamic option.

AudiZine might be a good place to ask this as well.

I also found out it was off a 2015 Audi A4 not A5 my mistake but id think it'd be the same.

 

[atbro199]

okay because i thought someone had said in a forum that the ratios between the A class racks were different and not made for the perfomance from S class cars so the s class ones were different. In the 9th pic it has 2 etched out part numbers are you referring to the newer looking etched out part number which is light grey or the darker older one

I have no clue about the ratios claim, but I would be interested in learning but only from a trusted source.

As for the pics, the part number in light gray matches the OEM QR code sticker. That sticker is normally not on reman units (not on any of mine) so the only information to go off of is that light gray etching.

If you take your vin, type it into the Audi parts page, search for steering rack, you’ll see what other cars that part number works on. You’ll also see the revision history with all of the superseded numbers.

 

[PhilipCurrier]

Sorry im a little confused by what you meant by the part number in light grey matches the OEM QR code sticker. Also my reman part numbers have "xx" and "a_" at the end of them so they aren't on the this page https://audi.oempartsonline.com/oem...9MjAxNCZ0PXByZW1pdW0tcGx1cyZlPTMtMGwtdjYtZ2Fz
So im unsure if mine would even work i can try to email you pictures of both my new and old part numbers and what not and see if that'd help but i saw what u meant by the previous superseded part numbers. The part i bought used off the 2015 a4 Etching was " 8K1423105A_ " . The old one which seems to also be reman'd is this " 8k1423105xx " on the etching and because they are reman'd parts those part numbers dont exist in audi catalog. The Audi dealership told me that there was nothing he could tell me about either of the part numbers even tho that had been sitting on my vehicle except that they had both been reman'd parts.

I have posted on Audizine no replies related to my issue have come from it and reddit got 400 views and no replies and then i made a new thread on ross tech forums and it hasnt seen a reply either and also audi world came up dry so im really at a loss for words and feel like im in the middle of the ocean in a dinghy. You have been my only light at the end of the tunnel so i appreciate you trying to your best to help. I also wanted to say that were both from northern virginia so maybe that'd help except im stuck up near boston with this car trying to get it drivable to get back home to Alexandria Virginia haha. Been such a headache and after all of that i start school in under 3 weeks so im feeling helpless

 

[Dr Sheldon]

So the reman unit I have now isn’t correct for the S4, hence the numbers starting with a different set of characters? I’ll get another reman unit then with the correct numbers.

WOW !!

After all that foolishness we have the realisation that the right part for the right car fitted the right way may be the answer to the conundrum ?

What a great idea !!

 

[PhilipCurrier]

Replacing my steering rack due to water getting in it and im over the 125k miles / 10 years warranty.

I have the part number 8k1423105a as a replacement but it was also a reman but it parts from different racks as there were different numbers throughout it. i have a 2014 s4 and the rack that came off of it was a 8k1423105 that was stamped with a 8k1423105xx from the people who also remanufactured that one. I have non dynamic steering and the one i bought came off of a low mileage 2015 a4. Dealership said i should have 8k1423055cg on the car but clearly i dont.

vin:
WAUDGAFL4EA018200

Haven't seen much activity on any audi forum groups so trying to push this to get more views

 

[Uwe]

Threads merged. There's no reason to have two different threads for this saga.

-Uwe-