Check a VIN

April 25, 2014 Service bulletin

Supersedes Technical Service Bulletin Group 87 number 13-44 dated August 26, 2013

Audi technical service bulletin A871449 2020124- for 2009-2010 Audi A4, 2005-2013 Audi A6 and 2009-2013 Audi Q5 and others.

Bulletin number
A871449 2020124-
Component
Equipment: appliance: air conditioner
Summary
Supersedes Technical Service Bulletin Group 87 number 13-44 dated August 26, 2013. Air conditioning is inoperative. The HVAC blower functions normally. Battery discharged; however, when charged, there is no bus silence when vehicle ignition is off. The A/C pressure/temperature sensor, G395, leaks refrigerant. This causes sensor G395 to show an incorrect or implausible value when reading MVBs. An incorrect signal or a low refrigerant level in the system can cause the air conditioning compressor to deactivate. The LIN cable connecting the vehicle electrical system control module, J519, to sensor G395 is pinched or cut. This affects the A4/S4, A5/S5 Coupe and Cabriolet, and Q5 vehicles. The A6 and A8 are not affected by this type of failure.The pressure sensor G395/G65 sends an incorrect signal that prevents bus silence and the battery is discharged.

Vehicles covered

VIN decoder

See the problems and recalls for an exact car

Buying a used Audi A4?

Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.

Check its history