Audi SQ6 e-tron Mk1

The Q6/SQ6 e-tron is the first Audi built on the new CARIAD software stack, and early owners have experienced persistent issues. Reported problems include MMI freezes and reboots, wireless Apple CarPlay failing to connect, driver assistance systems (lane assist, adaptive cruise) occasionally not initializing at startup, and traffic sign recognition displaying incorrect data. Audi released a major combined software update (TSB 2079690, version 3.10.00) that flashes approximately 30+ control modules, which resolved many launch bugs. However, this update must be performed at a dealer and cannot be done entirely over-the-air. Post-update owners report improved stability, but new OTA updates have sometimes introduced fresh glitches. Most software issues cost nothing to fix under warranty, but out-of-warranty dealer diagnostic time for software problems can reach 1-2 hours at approximately 150-200 per hour.

A class-action lawsuit in the US alleges that Audi's electronic door locks can randomly refuse to lock or unlock across multiple models including the Q6 e-tron. Owners report a 'Central Locking: Malfunction' warning, with doors either stuck locked (preventing exit) or stuck unlocked (security risk). In at least one incident, a child was trapped inside while the owner was locked out. The issue appears to be related to the electronic actuator failing, with replacement parts and labor costing approximately 300-600 per door. Audi has not issued a formal recall for this defect as of early 2026, though a software-related fix may address some cases. The problem has been documented since at least 2019 on other Audi models using similar lock mechanisms.

Multiple SQ6 and Q6 owners report the car applying sudden emergency braking when reversing at low speed, sometimes in open driveways with no obstacles. The system can also engage while pulling forward slowly in parking situations. This appears to be an overly sensitive calibration of the rear cross-traffic alert with brake assist. The workaround is to disable the rear brake assist via the Drive Assist menu, though this removes a genuine safety feature. Audi has acknowledged the issue, and a software update improving sensor calibration was expected for Q1 2026. The financial cost is minimal (covered under warranty or via free software update), but the safety implication and inconvenience are significant.

Owners report the alarm sounding 3-4 times when locking the car or repeatedly going off in the middle of the night. The primary culprit is the rear occupant/animal detection sensor triggering false positives. Disabling this feature via the MMI settings (Car > More settings > rear passenger warning) stops the false alarms but removes a safety feature. A TSB exists for this issue, and a software update was scheduled for early 2026. Some owners have experienced the alarm going off approximately 10 times in one night. While not mechanically dangerous, it can cause significant neighbor disruption and battery drain.

The electronic charging port actuator can fail, preventing the port door from opening or closing properly, or trapping the charging connector. Audi has documented this in TSB 55 24 97 for e-tron models. The actuator motor itself is relatively inexpensive, but if the entire charging port assembly needs replacement, parts alone can reach 800-1,000 plus several hours of labor. Cold weather can exacerbate the issue. As a temporary measure, gently pushing the door closed or warming the area may help. The issue appears across multiple Audi EV models, not just the Q6/SQ6.

Like many modern EVs, the SQ6 e-tron can drain its 12V auxiliary battery when left parked for extended periods (typically 7-14 days). The car draws 40-80 mA constantly for connected features and alarm monitoring. When the 12V battery dies, the car cannot be unlocked with the key fob and cannot start, even if the main HV battery is fully charged. The 12V battery is located in the frunk. Audi recommends keeping the car on a trickle charger if parked for more than a week. A software update improved battery management for some owners. Replacement of the 12V lithium-ion battery costs approximately 200-400 including labor.

A small number of Q6/SQ6 owners have reported sudden 'High Voltage Electrical System: Fault' warnings rendering the car immobile. At least one documented case required rear inverter/motor replacement after only 2,200 km. The repair is complex, requiring battery removal and approximately 60 bolts, and must be performed by a certified Audi master technician. Parts sourced from Germany can extend repair time to weeks. The cost out of warranty would be approximately 3,000-8,000 depending on the specific component. This is rare and most cases are covered under the 2-year factory warranty or the 8-year/160,000 km HV battery and drivetrain warranty. However, it underscores the importance of verifying full warranty status on any used SQ6 purchase.

Audi has issued two separate recalls for the Q6/SQ6 e-tron rearview camera. The first (NHTSA 25V225000) addresses cameras that show a blurry image due to a hardware defect, requiring physical camera replacement. The second (NHTSA 25V226000, Audi code 916C) covers cameras that are delayed or deactivated after shifting to reverse, fixable via software update. Both are free under recall. Out of warranty or if the issue recurs, camera replacement costs approximately 300-800 including the surround-view camera inspection. Verify both recalls are completed on any purchase.