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Service bulletin A481458 2035178-

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10122343
Published by NHTSA2017-11-08
Manufacturer's numberA481458 2035178-
Manufacturer's date2014-04-25
NHTSA componentSTEERING:ELECTRIC POWER ASSIST SYSTEM; POWER TRAIN:MANUAL TRANSMISSION

NHTSA's summary

Supersedes Technical Service Bulletin Group 48 number 13-53 dated September 10, 2013. On vehicles equipped with a manual transmission, a steering warning may briefly display in the instrument cluster when the engine is restarted after improper use of the clutch pedal. For example, the warning may appear when the engine is restarted after the clutch pedal has been released too quickly during low-RPM, low-speed parking lot maneuvers. symptom codes may be stored in the diagnostic log under the power steering control module. The vehicle system voltage drops when the starter motor is operating. Because the power steering control module has a parallel circuit with the starter motor (terminal 29), this normal voltage drop may set a symptom code within the scenario described in the Condition section of this bulletin.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Steering, Transmission and driveline, Manual transmission, Power steering

Vehicles listed
AUDI A4 ALLROAD2013
AUDI A52013
AUDI A5 CABRIOLET2013
AUDI Q52013

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
48K8UPDATE2024-01-22. Service bulletin. Power Steering Control Unit Software (NVLW)
371448203000752022-11-21. Service bulletin. Customer may report harsh shift concerns; no faults are stored and concern is reproducible
30 13 18 20282292022-05-31. Service bulletin. Vehicle does not start or only starts when the clutch pedal is pressed very firmly
30 13 18 20282292022-05-02. Service bulletin. There may be clutch mechanism wear. Customer may report that the vehicle does not start or only starts when the clutch pedal is pressed very firmly. The message ?Press clutch pedal to start vehicle? may appear in the instrument cluster.
A481336 2033044-2017-11-17. Service bulletin. The customer states they have a comfort concern about the steering system. The steering works correctly but intermittently feels notchy. There is no loss of steering functionality. The concern may be more apparent in colder weather, and may improve with warmth or an ignition key cycle. No DTC is stored and no warning appears in the cluster. This PSS TSB applies only to the comfort concern described in the condition of this PSS TSB. Please refer to the attached Information and Q&A document for guidance when handling each case. A solution is in development and will be made available as soon as possible. The steering wheel is mechanically linked to the wheels of the vehicle, and there is no loss of steering functionality. Refer to the attached Information and Q&A document for guidance when handling each case.
A481338 2033044-2017-11-17. Service bulletin. Supersedes Technical Service Bulletin Group 48 number 13-36 dated February 21, 2013. The customer states they have a comfort concern about the steering system. The steering works correctly but intermittently feels notchy. There is no loss of steering functionality. The concern may be more apparent in colder weather, and may improve with warmth or an ignition key cycle. No DTC is stored and no warning appears in the cluster. This PSS TSB applies only to the comfort concern described in the condition of this PSS TSB. Please refer to the attached Information and Q&A document for guidance when handling each case. A solution is in development and will be made available as soon as possible.The steering wheel is mechanically linked to the wheels of the vehicle, and there is no loss of steering functionality. Refer to the attached Information and Q&A document for guidance when handling each case.
A481341 2033391-2017-11-17. Service bulletin. Customer may report that a warning for electromechanical steering is displayed in the instrument cluster. There is no loss of steering control or functionality associated with these warnings. Issues with the hardware and software.
A971335 2033412-2017-11-17. Service bulletin. Steering wheel lock does not work. Various warning lights are on. Steering feels stiffer than usual. The engine cannot be switched off. The ignition key cannot be removed. DTC with description "Brake control unit, no signal/communication" is present in several control units. DTC entry in ABS Control unit, J104 (03). One or more may be present. This condition does not result in any drivability concerns. The steering system is fully connected. This condition does not result in any drivability concerns. The steering system is fully connected. The insulation for the ABS wheel speed sensor is damaged in production. Over time, this can lead to corrosion on the wires and restricted functions with the ABS control module. Only the wires in the left bulkhead grommet are affected.
Executive Servic2017-10-27. Service bulletin. This document contains a fluid capacity chart as well as a chart that contains the parts and part numbers needed for service.
Executive Servic2017-10-27. Service bulletin. This document contains a fluid capacity chart as well as a chart that contains the parts and part numbers needed for service.