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Service bulletin L73X-A.01.16

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 id10101443
Published by NHTSA2017-05-31
Manufacturer's numberL73X-A.01.16
Manufacturer's date2016-01-15
NHTSA componentENGINE

NHTSA's summary

ENGINE SW UPDATE: TO PREVENT A FALSE MIL FROM BEING DISPLAYED ON DASHBOARD WHEN ENGINE IS WARM AND IDLING AS CONSEQUENCE OF THE VVT EXHAUST THAT DOES NOT RETURN TO THE DESIRED POSITION.

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

Engine

Vehicles listed
LAMBORGHINI AVENTADOR2006
LAMBORGHINI AVENTADOR2013, 2014, 2015
LAMBORGHINI AVENTADOR ROADSTER2006
LAMBORGHINI AVENTADOR ROADSTER2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it)

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

Recalls for the same vehicles and component
18V3910002018-06-12. ENGINE AND ENGINE COOLING:ENGINE

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

Other bulletins for the same vehicles and component
BI.03.202020-06-15. Service bulletin. Lamborghini informs that in case of replacement of the engine control unit or/and gearbox control unit, for correct configuration there is a new SVM code to be used.
L73X-T-08-192019-08-19. Service bulletin. As a result of a continuous product monitoring, Automo-bili Lamborghini Spa has detected that in some cases the cold junctions for thermocouples could detect an incorrect catalyst temperature due to the actual mounting position.
L73X-A.07.192019-07-15. Service bulletin. Automobili Lamborghini Spa has detected that in some cases the cold junctions for thermocouples could detect an incorrect catalyst temperature due to the actual mounting position.
L73X-A.07.182019-07-15. Service bulletin. Automobili Lamborghini Spa has identified a problem in the idler roller.
BI.07.172017-10-12. Service bulletin. Information Bulletin on the Variable Timing Mechanisms on the Aventador.
L73X-A.09.172017-10-12. Service bulletin. As a result of continuous product monitoring, Automobili Lamborghini Spa found that the water expansion tank may leak either under severe driving condition or at high ambient temperature.
L73X-A.03.172017-08-03. Service bulletin. As a result of continuous product monitoring, Automobili Lamborghini Spa found some cars in which the insulation for blow by pipes are noncompliant with our quality esthetical standards, therefore has decided to introduce new designed pipes and thermal sheath
L73X-A.02.162017-05-31. Service bulletin. ENGINE SW UPDATE: TO PREVENT A FALSE MIL FROM BEING DISPLAYED ON DASHBOARD WHEN ENGINE IS WARM AND IDLING AS CONSEQUENCE OF THE VVT EXHAUST THAT DOES NOT RETURN TO THE DESIRED POSITION.