Porsche Cars North America notes that the coolant temperature sensor is being needlessly replaced on 2011-2014 Cayenne vehicles. The display may indicate implausible coolant temperature (temperature too low or no temperature displayed). Fault code P3081 may be stored in the digital motor electronics (DME) control unit. The incorrect coolant temperature display, and the fault code entry are caused by a software error in the DME.
In the event of a complaint, a software update must be installed for the DME using PIWIS Tester II. The required software 027 (VR12.1) is available in PIWIS Tester II, version 7.800 or higher.
About the Author
Information courtesy of Mitchell 1
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety ofspecialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
