Service bulletin Update Bulletin-

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.

NHTSA's summary

On Audi A8 vehicles manufactured within a specific period, the system diagnosis may detect a sporadic implausible condition of the selector lever sensors when the ignition is switched on. As a result, the gearbox warning lamp lights up and it is no longer possible to engage a gear. The Update is in effect until removed. Procedure is valid only for vehicles that show the 37H4 code in the ElsaWeb Campaign/Action Information screen on the day of repair. Vehicles must be within the New Vehicle Limited Warranty. Procedure must be performed within the allotted timeframe stated in this Technical Service Bulletin. Procedure must be performed on applicable vehicles in dealer inventory prior to sale. On Audi A8 vehicles manufactured within a specific period the system diagnosis may detect a sporadic implausible condition of the selector lever sensors when the ignition is switched on. As a result, the gearbox warning lamp lights up and it is no longer possible to engage a gear.

The document

• NHTSA's copy of the document (PDF)
• If that address does not open, try this one

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

Electrical system

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

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

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