Audi SQ8 years to avoid

How we rated the best and worst Audi SQ8 years

The 2021 Audi SQ8 logged the most NHTSA owner complaints of any model year, making it the year that deserves the most scrutiny, with the electrical system as the most-reported issue area across all years.

To build this guide, we pulled data from NHTSA for recall campaigns and owner complaints, CarComplaints.com for complaint volume context, RepairPal for brand-level repair costs, Kelley Blue Book for consumer ratings, and owner discussions on AudiWorld Forums.

It is important to note that CarComplaints.com ranks a worst year by repair cost and mileage-at-failure (its PainRank system), while NHTSA shows raw complaint volume - these two often point to different model years. For the SQ8 specifically, CarComplaints.com does not yet have enough SQ8-specific data to generate a PainRank ranking, so the complaint and recall analysis throughout this article draws from NHTSA data.

Our years to avoid methodology weights NHTSA complaint volume, recall burden, and owner-reported failure categories to produce the verdicts in the table below.

Every Audi SQ8 model year ranked

NHTSA and recall data analyzed across 7 model years (2020-2026) shows that the SQ8 is a low-complaint model overall, but the years below show meaningful differences in recall burden and owner-reported issues.

Most common Audi SQ8 problems

The top recurring issue categories for the Audi SQ8 are electrical system (3 complaints), powertrain (2 complaints), and lane departure (1 complaint) - with the electrical system clearly leading the field. Below are the documented failure categories, ordered by severity.

1. Rearview camera failure (electrical system / software)

The infotainment main unit on certain 2021-2022 SQ8 vehicles can become damaged internally when the vehicle is shut off, resulting in an inoperative rearview camera display the next time the vehicle is started - a violation of Federal Motor Vehicle Safety Standard 111, "Rear Visibility."

Certain 2020-2026 SQ8 vehicles are included in NHTSA recall 25V-900 (Audi manufacturer number 90TV) because a software issue can prevent the rearview camera image from displaying. The amended filing lists 11,590 SQ8 vehicles, but eligibility depends on VIN and the installed parts and software rather than model year alone.

Dealers will update the software, free of charge, with owner notification letters mailed January 14, 2026. The cost to you is zero if the recall is open - but if a prior owner had the unit replaced out of pocket before the recall was issued, verify that paperwork. Your buyer takeaway: enter the VIN at NHTSA.gov/recalls before any offer to confirm this recall is closed.

2. Auto stop/start system malfunction (powertrain)

The powertrain and electrical system are the subject of the NHTSA complaints for the 2021 SQ8, and the most common single complaint is a problem with the automatic engine stop/start feature.

Owners report that the auto engine stop/start feature does not work properly and that there are issues with the MMI infotainment system. The stop/start fault causes the engine to restart roughly or fail to restart smoothly when the car releases from a traffic stop, which owners describe as a lurching sensation. One owner on AudiWorld forums confirmed having the MMI issues and expressed hope that Audi would sort them soon.

Dealers can address this through software updates. No dedicated recall has been issued for the stop/start fault alone, but dealers can reflash the relevant control modules under warranty. Your buyer takeaway: on any used 2021 SQ8, ask whether the stop/start complaint has been documented and resolved in the service records.

3. Timing chain tensioner wear (4.0T V8 engine)

The timing chain tensioner is subject to wear and tear in the SQ8's high-performance V8, and over time the tensioner can weaken due to material degradation and high temperatures, causing the timing chain to loosen. Audi has revised the design of the tensioner to address these issues, but failures are still reported, especially in vehicles with higher mileage. Owners typically notice a rattling noise when starting the engine, which signals a tensioner problem.

If left unchecked, a failing tensioner can cause the timing chain to skip or break, leading to severe engine damage and costly repairs. The V8 is chain-driven with the chains at the rear of the engine, so a worst-case chain job means removing the engine, which is what the £2,800-£6,500 labor range represents. In US dollar terms, this type of repair can easily reach $5,000 or more at an independent shop. It is rare, labor-heavy, and almost always preventable with clean oil.

A bad timing chain typically announces itself with a rattle that is loudest on cold starts and fades as oil pressure builds - have a pre-purchase inspection include a cold-start listen for this sound on any SQ8 over 60,000 miles. Your buyer takeaway: verify oil-change intervals and fluid quality before purchase.

4. 48V mild-hybrid system / electrical compressor failure

The headline 4.0T V8 in US SQ8 models shares an electrically powered compressor that fills in boost before the turbos spool, fed by a 48-volt electrical system. When it dies, the car feels flat off the line, stop/start stops working, and diagnostic codes point straight at the compressor.

The 48V mild-hybrid system has been a source of complaints, with owners reporting battery degradation, alternator-starter unit failures, and software glitches affecting the engine stop/start functionality. Replacement of the 48V belt-alternator-starter (BAS) unit is a dealer-level repair and typically costs $1,500 to $3,000 in parts and labor. Your buyer takeaway: if the stop/start light is disabled or illuminated on a test drive, request a scan before buying.

5. Driver's seat side airbag mounting (2023-2024)

Certain 2023-2024 SQ8 vehicles were recalled because the driver's seat side airbag may have been improperly mounted to the seatback frame, failing to comply with Federal Motor Vehicle Safety Standard 214 "Side Impact Protection." An improperly mounted airbag may not restrain an occupant as intended, increasing the risk of injury during a crash.

Dealers will inspect and reinstall the airbag as necessary, free of charge. This is a safety-critical campaign, but the remedy is straightforward and free. Your buyer takeaway: confirm via VIN lookup that this recall has been completed on any 2023 or 2024 SQ8 you are considering.

6. Fuel pump failure (2019-2021 Q8/SQ8 platform)

NHTSA Campaign 22V-516 warned that the fuel pump of 2019-2021 Audi Q8 and related platform vehicles may fail due to a component inside the pump breaking. As many as 49,443 vehicles may be affected, and if the fuel pump fails it can cause an engine stall that increases the risk of a crash.

The recall, dated July 20, 2022, directed dealers to replace the fuel pump free of charge. When it was first issued, replacement pumps were not available, and Audi expected them to be available only in late December 2022. Any 2020-2021 SQ8 should have had this recall completed by now, but verifying via VIN is still the safest step. Your buyer takeaway: confirm recall completion on any 2020 or 2021 SQ8 before closing a deal.

Which Audi SQ8 years should you avoid?

The Audi SQ8 years to avoid are 2021 and 2024. The 2021 year accounts for 3 of the 5 total NHTSA complaints filed for the entire SQ8 model line, making it the single weakest year by NHTSA complaint volume. The 2024 model carries 2 NHTSA complaints and the airbag mounting recall (for 2023-2024 vehicles), which adds another layer of risk to verify. Note again that CarComplaints.com does not yet have enough SQ8-specific volume to generate a PainRank score, so the ranking here is based entirely on NHTSA data.

Worst Audi SQ8 years: 2021, 2024 1st-generation Audi SQ8 (2020-2026)

Introduced to the US market in 2020, the high-performance SQ8 can rocket from zero to 62 mph in 4.1 seconds, powered by a sporty gasoline turbocharged V8 engine. For the 2021 model year, 337 manufacturer communications were filed, including 94 about the electrical system and 34 about engine and engine cooling. Additionally, 3 consumer complaints were filed with NHTSA and 4 recalls were issued. The 2021 NHTSA complaint page shows the powertrain and electrical system as the core complaint categories. The 2024 year adds 2 additional NHTSA complaints and the airbag recall, making it the second-most problematic year on record.

What are the best Audi SQ8 years to buy?

The best Audi SQ8 years to buy are 2023 and 2025. Both 2025 and 2023 have zero NHTSA owner complaints on record, giving them the cleanest owner-reported history in the SQ8 lineup.

Most reliable Audi SQ8 years: 2023, 2025

2023 Audi SQ8

The 2023 Audi SQ8 carries a 4-year/50,000-mile basic warranty and 2 recalls, both of which are safety-related and covered free of charge by dealers. Zero owner complaints were filed with NHTSA for this model year, meaning no owners reported safety-related issues serious enough to escalate to the federal agency. At current used pricing, the 2023 gives you meaningful warranty protection alongside a clean NHTSA record.

2025 Audi SQ8

The 2025 model year drew the fewest NHTSA complaints of any year in the SQ8's production history. A recall covering 2025 SQ8 vehicles addressed the possibility that driver and front passenger seat belt buckles may be missing a rivet that secures the buckle to the seat belt stalk - a straightforward inspection and replacement performed free by dealers. Once you confirm this recall is closed via VIN check, the 2025 represents the cleanest ownership proposition in the lineup.

Audi SQ8 pre-purchase checklist

Before buying any used Audi SQ8, run through these model-specific checks:

• Run the VIN through NHTSA's recall checker: Confirm that all open recalls - including 25V-900 (rearview camera software), the airbag mounting recall for 2023-2024, and the fuel pump recall for 2020-2021 - are shown as completed.

• On a 2021 SQ8, check the stop/start system: Start the car from cold and note whether the stop/start system engages and disengages smoothly at traffic lights. A rough restart or a disabled stop/start light is a flag.

• Listen for a cold-start timing chain rattle: On any SQ8 over 60,000 miles, record the first few seconds of a cold start. A metallic rattle that fades as oil pressure builds points to timing chain tensioner wear and a potential repair bill exceeding $5,000.

• Test the rearview camera display: Put the car in reverse and confirm the camera image appears immediately and without blank screens. The 2021-2022 infotainment failure often shows as a black screen on startup.

• Inspect the 48V system warning lights: If the electrically powered compressor fed by the 48V system has failed, the car will feel flat off the line and stop/start will stop working. Have a technician pull live diagnostic codes before purchase.

• Request full service records: Service the car yearly if it does short trips, regardless of the flexible interval schedule; an SQ8 with no records is a higher-risk purchase regardless of year.

• On 2023-2024 models, confirm the airbag mounting recall is resolved: The driver's seat side airbag may have been improperly mounted to the seatback frame on these years - dealer confirmation in writing is the safest approach.

• Ask about oil consumption: High oil consumption is reported on the 4.0T V8. Check the dipstick and ask how often the owner has topped up between services.

Better alternatives to consider

If the Audi SQ8 years in your budget land on the avoid list, consider these alternatives instead:

• Audi Q7 - a three-row platform sibling with a longer production run and a more established reliability track record across multiple generations
• BMW X5 M50i - broadly cross-shopped against the SQ8, with a similarly powerful 4.4T V8 and strong owner satisfaction scores in the 2021-2023 range
• Porsche Cayenne GTS - owners who have compared the SQ8 with the Cayenne note that the SQ8 falls between the GLE 53 and GLE 63 in power output, making the Cayenne GTS a natural step-up alternative with a stronger long-term reliability reputation