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2018 Audi A5
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all A5 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 13 of 38 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Service Brakes. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
4 reportsI 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 pu…
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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
I am writing to formally bring to your attention a potential violation of federal vehicle safety reporting requirements by Audi regarding an Electronic Control Unit (ECU)/Comfort Control Module failure in my 2018 Audi A5. As the original owner of this vehicle, I experienced a critical ECU failure approximately 2yrs after purchas…
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I am writing to formally bring to your attention a potential violation of federal vehicle safety reporting requirements by Audi regarding an Electronic Control Unit (ECU)/Comfort Control Module failure in my 2018 Audi A5. As the original owner of this vehicle, I experienced a critical ECU failure approximately 2yrs after purchase (Sept 2017), which I believe qualifies as a major safety defect under 49 CFR 573.6-577.7. According to federal regulations, manufacturers are required to report such safety defects to the NHTSA within five (5) days of discovery. Furthermore, a root cause analysis should have been conducted & its findings reported w/in sixty (60) days. However, I have strong reason to believe that Audi failed to meet these reporting obligations, as I have never been provided with any findings from the investigation, nor have I seen any publicly available reporting on this defect. Key Concerns: • Unexplained ECU Failure: My vehicle’s ECU/Comfort Control Module failed inexplicably despite being only 2yrs old at the time. • Failure to Report to NHTSA: I haven't found record of Audi disclosing this issue to the NHTSA, despite clear requirement to do so. • Root Cause Analysis Not Provided: Audi informed me that analysis was conducted in Germany, but I was repeatedly told that the results were “not yet available.” This raises concerns that the findings may have revealed a broader defect affecting multiple vehicles of the same model/yr. • Potential Safety Risk: If this is not an isolated case, other Audi A5 owners may unknowingly be at risk of ECU failures, which could lead to critical vehicle malfunctions, including loss of control, electrical failures, or immobilization while driving. Given the seriousness of this issue, I urge the NHTSA to investigate Audi’s compliance with 49 CFR 573.6-577.7 & determine if this defect affects a broader range of vehicles. If Audi has indeed failed to report this defect properly, appropriate action be taken for consumer safety
Start stop system failure Warning displayed Check engine light Car hesitates IF the start stop happens to decide to function At times it won’t work at all
Official recalls
621V874000 · Air Bags:sensor:occupant Classification:front Passenger; Seats
Nov 10, 2021
Volkswagen Group of America, Inc. (Audi) is recalling certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5 Cabriolet, A5 Coupe, A5 Sportback, S4 Sedan, S5 Cabriolet, S5 Coupe, and Audi S5 Sportback vehicles. The cable connecting the seat heater to the Passenger Occupant Detection System (PODS) may have a contact fault, causing the software to misdiagnose a malfunction and disable the passenger air bag.
Consequence & remedy
Consequence: A disabled passenger air bag increases the risk of injury in the event of a crash.
Remedy: Dealers will replace the connecting cable and either the heating mat or entire seat cover, free of charge. Owner notification letters were mailed January 7, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 74E3. This recall is an expansion of Recall 19V-547 (74D9). Vehicles previously repaired under 19V-547 will need to return for the new remedy.
Additional source detail variants (2)
Air Bags:sensor:occupant Classification:front Passenger
Volkswagen Group of America, Inc. (Audi) is recalling certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5 Cabriolet, A5 Coupe, A5 Sportback, S4 Sedan, S5 Cabriolet, S5 Coupe, and Audi S5 Sportback vehicles. The cable connecting the seat heater to the Passenger Occupant Detection System (PODS) may have a contact fault, causing the software to misdiagnose a malfunction and disable the passenger air bag.
Consequence: A disabled passenger air bag increases the risk of injury in the event of a crash.
Remedy: Dealers will replace the connecting cable and either the heating mat or entire seat cover, free of charge. Owner notification letters were mailed January 7, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 74E3. This recall is an expansion of Recall 19V-547 (74D9). Vehicles previously repaired under 19V-547 will need to return for the new remedy.
Seats
Volkswagen Group of America, Inc. (Audi) is recalling certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5 Cabriolet, A5 Coupe, A5 Sportback, S4 Sedan, S5 Cabriolet, S5 Coupe, and Audi S5 Sportback vehicles. The cable connecting the seat heater to the Passenger Occupant Detection System (PODS) may have a contact fault, causing the software to misdiagnose a malfunction and disable the passenger air bag.
Consequence: A disabled passenger air bag increases the risk of injury in the event of a crash.
Remedy: Dealers will replace the connecting cable and either the heating mat or entire seat cover, free of charge. Owner notification letters were mailed January 7, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 74E3. This recall is an expansion of Recall 19V-547 (74D9). Vehicles previously repaired under 19V-547 will need to return for the new remedy.
19V547000 · Air Bags:frontal:passenger Side:inflator Module; Air Bags:sensor:occupant Classification
Jul 24, 2019
Volkswagen Group of America, Inc. (Audi) is recalling certain 2018-2019 Audi RS5 Sportback, 2018 S5 Cabriolet, S5 Sportback, S5 Coupe, S4 Sedan, A5 Cabriolet, A5 Sportback, A5 Coupe, and 2017-2018 A4 Sedan and A4 Allroad vehicles. Oxidation on the Passenger Occupant Detection System (PODS) connecting cable may cause the software to misdiagnose a malfunction and disable the passenger air bag.
Consequence & remedy
Consequence: A disabled passenger air bag increases the risk of injury in the event of a crash.
Remedy: Audi will notify owners, and dealers will install cable ties to the harness, free of charge. The recall began September 9, 2019. Owners may contact Volkswagen customer service at 1-800-893-5298. Audi's number for this recall is 74D9.
Additional source detail variants (2)
Air Bags:frontal:passenger Side:inflator Module
Volkswagen Group of America, Inc. (Audi) is recalling certain 2018-2019 Audi RS5 Sportback, 2018 S5 Cabriolet, S5 Sportback, S5 Coupe, S4 Sedan, A5 Cabriolet, A5 Sportback, A5 Coupe, and 2017-2018 A4 Sedan and A4 Allroad vehicles. Oxidation on the Passenger Occupant Detection System (PODS) connecting cable may cause the software to misdiagnose a malfunction and disable the passenger air bag.
Consequence: A disabled passenger air bag increases the risk of injury in the event of a crash.
Remedy: Audi will notify owners, and dealers will install cable ties to the harness, free of charge. The recall began September 9, 2019. Owners may contact Volkswagen customer service at 1-800-893-5298. Audi's number for this recall is 74D9.
Air Bags:sensor:occupant Classification
Volkswagen Group of America, Inc. (Audi) is recalling certain 2018-2019 Audi RS5 Sportback, 2018 S5 Cabriolet, S5 Sportback, S5 Coupe, S4 Sedan, A5 Cabriolet, A5 Sportback, A5 Coupe, and 2017-2018 A4 Sedan and A4 Allroad vehicles. Oxidation on the Passenger Occupant Detection System (PODS) connecting cable may cause the software to misdiagnose a malfunction and disable the passenger air bag.
Consequence: A disabled passenger air bag increases the risk of injury in the event of a crash.
Remedy: Audi will notify owners, and dealers will install cable ties to the harness, free of charge. The recall began September 9, 2019. Owners may contact Volkswagen customer service at 1-800-893-5298. Audi's number for this recall is 74D9.
18V893000 · Suspension:front
Dec 17, 2018
Volkswagen Group of North America (Volkswagen) is recalling certain 2018 Audi A5 Sportback vehicles. The front suspension fasteners may not have been sufficiently tightened during vehicle production, possibly resulting in a front wheel becoming loose.
Consequence & remedy
Consequence: A loose front wheel may increasing the risk of a crash.
Remedy: Volkswagen has notified owners, and dealers will inspect the front suspension fasteners, and replace them as necessary, free of charge. The recall began January 23, 2019. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 40O2.
18V836000 · Air Bags:frontal:passenger Side:inflator Module
Nov 27, 2018
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2018 Audi A5 Sportback and 2017-2018 Audi A4 Allroad vehicles. A passenger air bag module mounting screw may not have been sufficiently tightened, possibly affecting the deployment of the air bag in the event of a crash.
Consequence & remedy
Consequence: If the air bag does not deploy correctly in the event of a crash, it can increase the risk of an injury.
Remedy: Volkswagen will notify owners, and dealers will inspect the air bag mounting screw, tightening or replacing it as necessary, free of charge. The recall began December 19, 2018. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 69Y4.
17V822000 · Air Bags:side/window
Dec 20, 2017
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2018 Audi A5 Coupe vehicles. The affected vehicles were built with head curtain air bag assemblies that may not unfold properly. As such, these vehicle fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 226, "Ejection Mitigation."
Consequence & remedy
Consequence: In the event of a crash necessitating deployment of the head curtain air bag, if the air bag does not deploy properly, the vehicle occupants have an increased risk of injury.
Remedy: Audi will notify owners, and dealers will modify the head curtain air bags so that they deploy properly, free of charge. The recall began on January 18, 2018. Owners may contact Audi customer service at 11-800-253-2834. Volkswagen's number for this recall is 69T7.
17V675000 · Structure:body:door:hinge And Attachments
Oct 25, 2017
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2017-2018 Audi A4 Sedan and A4 allroad, and 2018 A5 Sportback vehicles. The aluminum trim on the front and rear doors can come loose from around the door speakers, leaving sharp edges exposed.
Consequence & remedy
Consequence: The sharp edges of the speaker trim increase the risk of injury to vehicle occupants.
Remedy: Audi will notify owners, and dealers will replace the speaker cover aluminum trim, free of charge. The recall began March 13, 2018. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 70G6.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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