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Service bulletin 37 13 81 2021193

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 id10210661
Published by NHTSA2022-05-02
Manufacturer's number37 13 81 2021193
Manufacturer's date2013-01-16
NHTSA componentENGINE; STEERING:GEAR BOX (OTHER THAN RACK AND PINION); POWER TRAIN:MANUAL TRANSMISSION

NHTSA's summary

Because of an unfavorable adjustment between engine and gearbox, vehicle can shudder under certain driving conditions when changing from second to first gear.

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

Engine, Steering, Transmission and driveline, Manual transmission, Steering gear

Vehicles listed
AUDI A42009
AUDI A52009
AUDI S52009

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
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.
TSB-37-13-092013-12-02. Service bulletin. AUDI: IN SOME VEHICLES, THE CLUTCHES, AFTER HAVING TORQUE CONVERTER, COMPLETE GEARBOX REPLACEMENT OR MECHATRONICS, MUST ADAPT TO NEW COMPONENTS WITH GRADUAL MOVING OF CLUTCH LININGS IN MOST DIVERSE LOAD CONDITIONS. MODELS 2004-14, A3, TT, Q7, A4, A5, A6, A7, A8, Q5, S4, S5, S6, S7, RS5. *PE
TSB-34-12-082012-04-11. Service bulletin. AUDI: WHEN VEHICLE IS AT CONSTANT SPEED OR IS ACCELERATING, FROM THE FRONT CAN HEARD CONSTANT HOWLING, OR DRONING, OR A SCRAPING NOISE. *PE
TSB-30-11-112012-03-13. Service bulletin. AUDI: WHEN PRESSING FIRMLY ON CLUTCH PEDAL, CERTAIN MODEL YEAR VEHICLES MAY OR MAY START. *PE