2018 Audi Q5 Electrical System Problems

Source: NHTSA · Updated Oct 15, 2026 · 74 complaints analyzed

Owners have filed 74 complaints with NHTSA about electrical system problems on the 2018 Audi Q5, 36% of all complaints for this model year. Half of the reports with a mileage happened before 31,900 miles. The words owners use most often: “control module” (28% of reports).

What owners describe

Phrases that appear unusually often in these complaints compared with complaints about other cars.

  • Control module: mentioned in 21 of 74 complaints (28%)
  • Water intrusion: mentioned in 9 of 74 complaints (12%)
  • Sunroof drain: mentioned in 8 of 74 complaints (11%)
  • Start stop: mentioned in 7 of 74 complaints (9%)

At what mileage do electrical system problems happen?

Based on 17 complaints that reported the odometer reading.

Under 10k miles6 · 35%
10k–25k miles1 · 6%
25k–50k miles3 · 18%
50k–75k miles3 · 18%
75k–100k miles2 · 12%
100k–150k miles1 · 6%
150k+ miles1 · 6%

How serious are the reports?

None of the 74 complaints report a crash, fire or injury.

Audi Q5 electrical system complaints by model year

Peak: 2018, with 74 complaints
2009: 1200912010: 772011: 8201182012: 552013: 9201392014: 992015: 4201542016: 10102017: 4201742018: 74742019: 122019122020: 882021: 272021272022: 772023: 102023102024: 222025: 192025192026: 22

n = 218 complaints · Source: NHTSA

Model yearElectrical System complaintsShare of that yearMedian miles
2026 Q5250%—
2025 Q51943%10
2024 Q5210%—
2023 Q51023%—
2022 Q5732%23,000
2021 Q52736%12,500
2020 Q5832%1,225
2019 Q51223%22,000
2018 Q57436%31,900
2017 Q5410%—
2016 Q51013%21,591
2015 Q544%—
2014 Q599%59,000
2013 Q5910%47,000
2012 Q553%63,000
2011 Q586%109,000
2010 Q577%75,000
2009 Q513%47,500

When owners reported it

Peak: 2023, with 21 complaints
2018: 3201832019: 3201932020: 4202042021: 4202142022: 2202222023: 212023212024: 152024152025: 112025112026: 11202611

n = 74 complaints · Source: NHTSA

Related recalls (1)

Structure:body; electrical system:body control module/bcmDec 8, 2021 · NHTSA campaign 21V947000 · 288,991 vehicles

Problem: Volkswagen Group of America, Inc. (Audi) is recalling certain 2021-2022 Q5 Sportback, SQ5 Sportback, 2018-2022 Q5, and SQ5 vehicles. A liquid spill in the rear seat, or water ingress from an insufficient body seam underneath the vehicle may allow liquid to penetrate the gateway control module, causing it to shutdown.

Risk: A gateway control module shutdown will suddenly reduce engine power, increasing the risk of a crash.

Fix: Dealers will install a protective cover on the gateway control module and seal an underbody seam as necessary, free of charge. Owner notification letters were mailed January 21, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 90S9.

What owners report

Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.

The sunroof drainage system on my 2018 Audi Q5 failed to properly channel water away from the vehicle, resulting in significant water intrusion and approximately $6,000 in damage. The problem was confirmed by an authorized Audi dealership after the vehicle was brought in for inspection in August…

Received Sep 28, 2026 · NHTSA complaint 11767491

I have a 2018 Audi Q5, VIN [XXX]. I am reporting a water intrusion/electrical defect involving the rear trunk area and the Comfort Control Module. My vehicle is within the model range affected by the water-intrusion recall 90S9. I want Audi to investigate whether the water intrusion that damaged my…

Received Sep 23, 2026 · NHTSA complaint 11766482

Multiple electrical failures that control numerous safety systems, such as airbags, Collision avoidance, speed control, etc. Airbags will not activate in a collision. Vehicle will shut off at highway speeds, resulting in loss of steering control. The vehicle has been inspected by an Audi dealer…

Received Sep 22, 2026 · NHTSA complaint 11766103
Audi Q5
Audi Q5 GU 2.0 TDI in Filderstadt. Representative photo; appearance varies by model year. Photo: Alexander Migl, CC BY-SA 4.0, via Wikimedia Commons.

Frequently asked questions

Do all 2018 Audi Q5s have electrical system problems?

No. NHTSA has 74 owner complaints about electrical system for the 2018 Audi Q5 (36% of the 208 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.

Was there a recall on the 2018 Audi Q5 electrical system?

Yes: 1 safety recall list electrical system. Check your VIN on NHTSA.gov to see whether the fix was done on your car.

At what mileage do electrical system problems start?

The median reported mileage is 31,900 miles: half of the reports with a mileage came before that.

What do owners say about electrical system problems on the 2018 Audi Q5?

The most frequent phrase is “control module”, in 21 of 74 complaints, followed by “water intrusion” (9).

See all 2018 Audi Q5 problems or electrical system problems across all Q5 years.