There are 3 owner-reported powertrain & transmission complaints for the 2020 Audi Q7in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
In July 2023, my 2020 Audi Q7 experienced a complete electrical failure at highway speeds due to a Belt Starter Generator (BSG) malfunction. Audi replaced the BSG with the same faulty part. Months later, I noticed increased oil consumption and loud engine noise. Despite multiple service visits and reporting these issues, Audi failed to properly diagnose the problem. In January 2025, despite a clear check engine light indicating a problem, Audi dismissed my concerns. Just weeks later, in February 2025, the engine catastrophically failed due to undiagnosed internal damage. Audi repeatedly ignored diagnostic warnings and failed to address my complaints, putting my safety at risk. Audi consistently dismissed my concerns, attributing engine noise and oil consumption to normal wear. The failures posed safety risks, including sudden loss of power while driving. Despite documented defects, Audi refused to take responsibility or perform proper diagnostics, resulting in continued safety hazards. I am formally requesting NHTSA to investigate the widespread issues affecting the 2020 Audi Q7, including the BSG system and excessive oil consumption leading to engine failure.” Additional Details: •Component/System Failure: The 48V Belt Starter Generator (BSG) and the engine failed. The vehicle is available for inspection upon request. •Safety Risks: The electrical failure at highway speeds caused a sudden loss of power. The engine failure posed a risk of the vehicle shutting down unexpectedly while driving. •Problem Confirmation: The Audi dealership confirmed the engine failure and acknowledged the presence of metal shavings in the oil, indicating severe internal damage. •Inspections: The vehicle has been inspected by the Audi dealership, and Audi representatives acknowledged the issue. •Warning Signs: The check engine light illuminated in January 2025. Additional symptoms included loud engine noise (‘tractor-like’) and increased oil consumption, which Audi dismissed.
Central control module failure. Item is under recall for various Q5 models. Q7 is essentially the same car with same water intrusion problem. Why isn’t it included in recall. Very dangerous stall.
TL* THE CONTACT OWNS A 2020 AUDI Q7. THE CONTACT STATED WHILE DRIVING AT 20 MPH, THE VEHICLE STARTED MAKING AN ABNORMAL NOISE FROM THE PASSENGER'S SIDE REAR OF THE VEHICLE. THE CONTACT STATED THAT THE VEHICLE FAILED TO EXCEED 20 MPH. THERE WAS NO WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TOWED TO AUDI INDIANAPOLIS LOCATED AT 4610-B E 96TH ST, INDIANAPOLIS, IN 46240, WHERE IT WAS DIAGNOSED WITH THE REAR DIFFERENTIAL NEEDING TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED AS OF YET. THE MANUFACTURER HAD BEEN INFORMED OF FAILURE, AND A CASE WAS FILED. THE FAILURE MILEAGE WAS APPROXIMATELY 6,200. *LN*JB
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 26, 2026