Saturday, August 8, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

Audi A4 2004–2013technical service bulletin

Bulletin A871342 2020124- · NHTSA communication 10123561 · issued Jun 11, 2013

Technical service bulletin
communication type
Electrical System
component
2004–2013
model years
45
vehicle entries

Official summary

Supersedes Technical Service Bulletin Group 87 number 12-37 dated November 16, 2012. 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 sens

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.