What is the reason for the rear air conditioning not blowing air in the Audi Q5L?
3 Answers
Audi Q5L rear air conditioning not blowing air may be due to being set to the external circulation mode. The following is a related introduction about the Audi Q5L: 1. Exterior design: The Audi Q5L has a length, width, and height of 4765×1893×1659mm, with a wheelbase of 2908mm. The front face features sharp angles and a hexagonal air intake grille, similar to the family Q7, with the overall style changing from the rounded shape of the old Q5 to a more aggressive look. After lengthening, the body length and wheelbase have been improved compared to the old Q5. 2. Interior design: The 12.3-inch full LCD instrument panel displays clear effects, and the multimedia system needs to be controlled with a touchpad, providing the latest style multifunctional steering wheel, full LCD instrument panel, 8.3-inch multimedia display screen, MMI navigation Plus system, flat-panel system, and head-up display.
Last time my Audi Q5L had the same issue, and it turned out the rear independent AC switch was turned off. You can reactivate it in the AC settings on the central control screen. Another possibility is a dirty air filter blocking the vents, especially noticeable when using external circulation—replacing the filter solved it immediately. The rear air ducts have plastic flaps; once I accidentally had a child safety seat stuck there, blocking airflow, so check under the seats. If the blower is humming but no air comes out, it’s likely a seized motor needing replacement. Try turning up the fan speed when starting the AC to listen for abnormal sounds, then reset the AC system in settings. If all else fails, visit the dealership to scan for fault codes.
When repairing cars, this situation is often encountered. The rear fan for Audi is usually located under the front seats. To diagnose no airflow from the vents, follow these steps: First, check if the airflow setting is set to 0%, then try the recirculation mode to see if there's any air leakage in the ducts. Next, inspect the fuse—the one labeled F37 in the glove compartment fuse box is specifically for the rear fan. The blower bearing is prone to dust accumulation and jamming; disassembling and cleaning the dust can resolve this. Additionally, abnormal temperature settings in the climate control zones may force the rear vents to close. Mechanically, check if the air flap linkage has come loose, as this type of fault can be time-consuming to repair.
