Fault codes: ABS 00290, 04642, A/T 18255

[Mannie]

Hey folks,
I have a 2007 A3 2.0 TFSI Sportsback. 80,000.
I have just recently had my ESP fault warning come up, so I bought a cheap fault code reader. I have found the following readings. Can somebody please tell me what the 04642 code means, I can't find it anywhere.

Also if I refit the ABS wheel sensor, do I have to erase the error or does it clear its self from the system on its own. As I also have the ABS controller error too and had a full VAG device history, I don't want to mess anything up for any future work that Audi might offer for free or discount.

ABS
00290
04642

A/T
18255

00290 - ABS Wheel Speed Sensor Rear Left (G46)
00290 - ABS Wheel Speed Sensor Rear Left (G46): Signal Outside Specifications
00290 - ABS Wheel Speed Sensor Rear Left (G46): Electrical Fault in Circuit
Possible Causes

• Open Circuit in Wiring from/to ABS Wheel Speed Sensor Rear Left (G46)
• ABS Wheel Speed Sensor Rear Left (G46) faulty

Possible Solutions

• Check Wiring from/to ABS Wheel Speed Sensor Rear Left (G46)
• Check ABS Wheel Speed Sensor Rear Left (G46)

00285 - ABS Wheel Speed Sensor Rear Left (G46): Mechanical Malfunction
Possible Causes

• Excessive Air Gap between ABS Wheel Speed Sensor Rear Left (G46) and Rotor
• Short Circuit in Wiring from/to ABS Wheel Speed Sensor Rear Left (G46)
• ABS Wheel Speed Sensor Rear Left (G46) faulty

Possible Solutions

• Check ABS Wheel Speed Sensor Rear Left (G46) Installation
• Check Wiring from/to ABS Wheel Speed Sensor Rear Left (G46)
• Check ABS Wheel Speed Sensor Rear Left (G46)

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18255/P1847/006215 - Please check DTC Memory of ABS Controller
Possible Symptoms

• Malfunction Indicator Light (MIL) ON

Possible Causes

• Fault Code / Diagnostic Trouble Code (DTC) stored in Brake Electronics Control Module (J104)

Possible Solutions

• Check Brake Electronics Control Module (J104) for Fault Codes
  • VCDS > Select > 03 - Brake Electronics > Fault Codes - 02

Special Notes

• A Fault Code stored in one Module may influence other Modules as well, if a Control Module requires certain Information/Signals and the sending Module/Component is faulty it may store this Code.