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Service bulletin 37H4UPDATE

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 id10243835
Published by NHTSA2023-10-10
Manufacturer's number37H4UPDATE
Manufacturer's date2013-04-19
NHTSA componentPOWER TRAIN

NHTSA's summary

Selector Lever Software Update (NVLW)

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

Transmission and driveline

Vehicles listed
AUDI A82011, 2012, 2013

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
TSB_2082054_12026-07-07. Service bulletin. This bulleitn provides information when there is a delayed accelerator response.
TSB_2082046_12026-07-07. Service bulletin. This bulletin provides information when there is a strong jolt after engine automatically starts in start-stop mode; vehicles with 0BK & 0BL Gearbox.
TSB_2036278_32026-07-07. Service bulletin. This bulletin provides information when there are rough downshifts when the vehicle is slowed to a stop.
TSB_2028985_132026-07-07. Service bulletin. This bulleitn procides informaiton when tehre is a transmission warning mssage in the instrument cluster; P074100 is stored in the TCM.
TSB_2028902_52026-07-07. Service bulletin. This bulletin provides informaiton when the transmission warning message appears in the cluster; P074100 stored in the TCM.
TSB_2074808_42026-06-04. Service bulletin. The high-voltage batteries in electric vehicles are subject to various ageing effects which could lead to the energy content (energy density) being reduced. This reduction in the energy content, which is due to factors. Revised header. Added Model years
TSB_2074808_32026-01-07. Service bulletin. This bulletin provides additoinal information to assist in determining the energy content of lithium-ion high-voltage batteries.
TSB_2074857_22025-07-08. Service bulletin. This bulletin provides information when there are noises/vibrations in tight bends; Q7 and A8 models.
A3924742074859_12024-11-06. Service bulletin. This bulletin provides additional information pertaining to continued noises/vibrations in tight bends - Q7 and A8 vehicle models.
A3924692074857_12024-09-06. Service bulletin. This bulletin provides information when there are noises/vibrations in tight bends; Q7 and A8 models.