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Service bulletin TSB-42-15-24

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 id10058579
Published by NHTSA2015-10-14
Manufacturer's numberTSB-42-15-24
Manufacturer's date2015-06-30
NHTSA componentPOWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT

NHTSA's summary

AUDI: ON SOME VEHICLES, THE REAR DIFFERENTIAL SIDE FLANGE OR AXLE SHAFT INBOARD FLANGE IS LEAKING OIL FROM QUATTRO SPORTS AND PROTECTIVE CAP HAS INSUFFICIENT SEALANT ON INBOARD CONSTANT VELOCITY JOINT NEAR REAR DIFFERENTIAL. MODEL 2010-12 S4, 5, CABRIOLET. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Transmission and driveline, Differential

Vehicles listed
AUDI S42010, 2011, 2012
AUDI S52010, 2011, 2012

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
SB-2026049/62016-05-09. Service bulletin. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
TSB-42-12-132012-11-06. Service bulletin. AUDI: THE AXLE SHAFT INBOARD FLANGE AND QUATTRO SPORTS REAR DIFFERENTIAL (PR-PDU, PDR, OR GH2) SIDE FLANGE HAS AN OIL LEAKAGE. MODELS 2010-2012 S4, S5, S5 CABRIOLET. *PE UPDATED 04/16/2013 *JS
TSB-42-12-112012-09-06. Service bulletin. AUDI: CONSTANT VELOCITY OF JOINT GREASE AT REAR DIFFERENTIAL, CAUSES AN OIL LEAKAGE IN AREA OF QUATTRO SPORTS REAR DIFFERENTIAL SIDE FLANGE, OR AXLE SHAFT INBOARD FLANGE, DUE TO INSUFFICIENT SEALANT ON PROTECTIVE CAP. *PE
TSB-42-11-082011-12-07. Service bulletin. AUDI: CERTAIN VEHICLES WITH AXLE SHAFT INBOARD FLANGE OR SPORT DIFFERENTIAL SIDE FLANGE WILL EXPERIENCE AN OIL LEAK IN THOSE AREA. MODELS S4, S5, S5 CABRIOLET. *PE