There are 6 owner-reported electrical system complaints for the 2018 Audi SQ5in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Heavy rain leaked into the cabin of my SUV,and damaged the module, no controls worked through the key fob, no start . I keep my SUV under cover 90% of the time. A recent wind storm damaged my car port that I usually keep it under, so lately it’s been outside more often, especially if wind is in the forecast. I still use it if no wind is forecasted, because of the damage I don’t trust the carport until I can repair the damage.
During a rainstorm, water drained from roof drains that are apparently supposed to be cleaned & maintenance done by dealership on a regular basis but were clogged due to them not being any maintenance done. Water shorted out the entire control module for the entire vehicle computer after leaking into the rear inside behind hatch where battery and electrical components are located rendering the vehicle dead and undriveable on the side of the road. By the vehicles complete electrical system being rendered dead, this puts those in risk of accidents and is not covered as a warranty item for an issue that is well known according to dealership on their entire line of SUV products for the last decade. They wanted more than the SUV was worth to replace the computer control module, body wiring harness, and drain tubes that were clogged, but stated it happens all the time and is well documented by all Audi dealerships.
After a hard rainstorm the Comfort System Control Module (CCM) errored apparently from getting wet from a clogged sun roof drainage line, causing water to enter the rear left side compartment in which the CCM is housed (behind the insulation). The entire area is still damp 3 days later, and water is also located in the tire well and the rear right side compartment. The CCM error in turn caused a cascade of other errors, including causing the rear lights to stop working, an obvious safety hazard. As is evident from online discussion boards this is a frequent issue with this model and a clear design flaw. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Car's electrical system fried overnight during a rainstorm. All systems unresponsive to keys or key faub. Car was towed to used dealership and they told me due to drainage system blockage a pool of water collected in rear battery compartment and submerged the battery.
The car windows were down the windshield wipers were running the front lights were on and parking brake light is flashing. I'm not sure how water was sitting where the spare tire was located. As I researched it stated it may be a faulty comfort module.
BACKUP CAMERA DEFAULTS TO A BLACK GRAPHIC VIEW IN STEAD OF CAMERA. ALMOST IN MULTIPLE ACCIDENTS AS I HAD TO SWITCH TO CAMERA AFTER EVERY START WHILE BACKING UP IN PARKING LOTS.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026