Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2016 Audi A5 Coupe, A5 Cabriolet, A4 Sedan, A4 Allroad and Q5 vehicles. Contact corrosion within the electrical connector for the auxiliary heater may cause the heater wires to overheat...
Electrical system
Audi A5 Electrical problems by year
72 complaints filed with NHTSA about the Audi A5's electrical system. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.
Electrical complaints by model year
Electrical recalls
Latest A5 electrical complaints
Turned AC on blew out cool air all of sudden the air went out hot air blowing, smelt burning and saw smoke on passenger side (not a lot,but enough to raise concerns) turned AC shut climate off, turned car off tried it again no air just heat blowing. brother in law put it on machine , gave a sensor code, replaced sensor put a can of air in, still blowing out hot air. and if ran too long it will smoke and burning scent.
The contact owns a 2013 Audi A5. The contact stated that after activating the AC system, there was hot air and a burning odor coming from the passenger's side vents. The contact associated the failure with NHTSA Campaign Number: 17V002000 (Engine and Engine Cooling). The contact called an independent mechanic and referenced the recall campaign. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was contacted and confirmed that the VIN was not under recall. The failure mileage was approximately 157,653.
2008 Audi A5 3.2L S-Line Coupe experiencing severe water intrusion into trunk compartment causing progressive failure of multiple electronic modules. Water enters through a known design defect in the trunk seal and drainage pathway, pooling in the spare tire well where critical electronic control modules are mounted. Affected systems: (1) Complete audio and entertainment system failure due to amplifier module destroyed by water damage. (2) Electronic parking brake malfunction with brake failing to engage and...
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disengage reliably, creating serious rollaway risk on inclines. (3) General electrical instability with intermittent warning lights and system malfunctions. (4) Severe parasitic battery drain with vehicle battery draining overnight due to water-damaged modules drawing constant current. This is a well-documented design flaw across the entire B8 A5 and S5 platform from 2008 to 2013. The manufacturer engineered a protective cover part for later production models, confirming awareness of the water intrusion defect, but never issued a recall or retrofit for earlier vehicles. Hundreds of owners have reported identical failures on major Audi enthusiast forums. The electronic parking brake failure is a serious safety hazard as the vehicle may roll uncontrolled on grades when parked.
The MMI ( main screen) system randomly reboots every 5 minutes, even when using CarPlay, which is unsafe. Please check it out. Thank you!
I turned on my car and several malfunctions came on the dash,and would not start and went in limp mode. A local mechanic stated it's the electrical component of the coolant pump causing malfunction. He also stated that could lead the car catching fire if overheats since the 5V is dipping below due to the faulty coolant /water pump. Ultimately forcing the car in limp mode for safety precautions. The problem is I purchase my car at 87,000 miles from the Audi dealership, and the extended warranty that covers the car is 80,000 miles
Audi USA sent me a recall letter/service action for Infotainment System Software. The system reboots and shuts down unexpectedly while driving. Took the car to a local Audi dealership and they informed me that they cannot repair the recall because they now want to change my SOS module in order for both to work. They are asking me to pay them $1,500 for that. Meanwhile they informed me that my SOS system is not working either because of that, and I cannot use.
The Multi-Media Interface (MMI) randomly reboots and poses a safety hazard. Several times while reversing using my backup camera, the MMI has rebooted which causes the camera to go blank. This poses a risk to back up into an object or a person during this time. Also during this time, the Rear Cross Traffic Warning system is disabled until the system reboots. Also, while using navigation, the MMI has rebooted on me several times. It has occurred during critical times such as exiting freeways at high speeds. ...
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When this occurs it is terribly distracting and could cause an accident. The problem has been re-produced by my dealer. They said it needed a software upgrade and performed that. It worked better for a couple days but is now back to rebooting spontaneously. There were no warning lamps or messages indicating the fault will be occurring. It just reboots and the MMI goes totally blank for about 20 seconds while the system reboots. There seems to be no rhyme or reason to when it will reboot. I can drive for 20 minutes and it may happen 4 times and then another time drive for an hour and never have it happen. Lately, it has gotten so bad I drive my son's car if it is available due to the safety concerns.
The MMI which controls back up and 360 cameras, parking sensors, collision avoidance system, navigation, bluetooth, radio, etc reboots randomly without warning. There is no predictability and I have not been able to identify a trigger. There is no warning indicator on the dash or MMI before it happens. When it reboots the screen goes black and all associated MMI functions become inoperable for seconds to minutes. It then restarts and often makes me log back in before I am able to use it again. It happens multiple...
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times, sometimes over a dozen in a short drive and often happens just several minutes apart. It has rebooted while I am pulling into my garage, parking, or backing up and actively using the cameras which poses a serious safety issue. It also occurs often when using bluetooth which can be a distraction, pulling my eyes off the road to grab my phone. This seems to be a widespread problem with Audi MMI which has not been addressed and is a safety concern for all models affected. The dealerships know it is happening due to the amount of complaints, but will not update software and want me to pay a diagnostic fee + upgrade + labor.
Hello, I am writing today to inform you about the safety concerns I have over My Audis MMI issues. The MMI is the multi media infotainment which is operates my back up camera, proximity sensors and navigation. The MMI is stuck in a loop and reboots every 60 seconds. I was backing up and the MMI rebooted on me which abruptly stop streaming what was behind me, my neighbor was also backing up and thankfully I spotted them on my rear view mirror and stop in time before we collided.
The vehicle's Multi-Media Interface (MMI) system is reportedly shutting down randomly while the vehicle is in operation. This issue occurs without warning and is intermittent, making it unpredictable. Observed Symptoms/Events: Complete Loss of MMI Functionality: The screen goes black, and all associated functions (navigation, radio, Bluetooth, vehicle settings, climate control interface, rearview camera, etc.) become inoperable. Random Occurrence: The shutdown can happen at any time, regardless of driving...
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conditions (e.g., stationary, low speed, highway speed). There appears to be no consistent trigger. Duration of Outage: The MMI system typically remains off for a period ranging from a few seconds to several minutes before spontaneously restarting. In some cases, the system may not restart until the vehicle is turned off and on again. Impact on Other Systems: While the primary issue is with the MMI, the owner reports concern about potential impacts on critical vehicle functions that utilize the MMI display (e.g., rearview camera when backing up, warning messages displayed on MMI). No Warning Indicators: No specific warning lights or messages appear on the instrument cluster immediately preceding or during the MMI shutdown. Repeatability: The issue is not consistently repeatable on demand, but it has occurred multiple times since its initial manifestation. Potential Safety Risk: The random shutdown of the MMI system poses potential safety concerns due to: Distraction: Unexpected system failure can be distracting to the driver, potentially diverting attention from the road. Loss of Critical Information: The MMI displays crucial information such as navigation directions, rearview camera feed, and certain warning messages. A sudden loss of this information can compromise driver awareness, especially when maneuvering or in complex traffic situations.
Beginning in mid July 2025, the MMI system (screen in the center of the dashboard) reboots every 1-2 minutes. In addition to the large distraction this causes while driving, the constant rebooting disables the back-up camera, parking sensors, rear-cross traffic alerts, collision avoidance assist, navigation, as well as everything else that is controlled by the Audi MMI system.
2020 Audi A5 started randomly rebooting (MMI software) around mid April 2025, It happens I'd say every 5-20 minutes and it repeats all the time. The fact that Audi/VW won't cover the cost to update their buggy software is very frustrating. I have notified Audi USA about the issue and am awaiting a response if they will cover the labor cost @ Prestige Audi in Denver, CO
About 3 weeks ago, the MMI screen began restarting over and over again and at times would reset when backing up and using the rear view camera. I have attempted restarting the MMI multiple times to no fix. I have also reset the MMI to its original settings and still the system keeps restarting. Sadly, this seems to be an issue occurring to multiple 2020 models according to multiple complaints online. Audi seems to be aware of the issue and there is a mixed response from Audi dealers on a fix. Some seem to suggest expensive options while others "fix" the issue only for it to continue to happen.
MMI constantly shuts off, often in the process of moving into or out of a parking spot. This suddenly and unexpectedly disables the parking collision warning system, the rear cross traffic warning system, and frontal collision warnings. Very frustrating and unsafe. No solution currently exists. No symptoms prior to this happening; it is widely reported at online forums. No users have been able to have this corrected even at the dealer.
The computer of the car (the MMI) is constantly rebooting. Once I turn on the vehicle it'll start up normally and after about 1 minute or two it'll go black and everything will restart.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data