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Audi SQ8: engines, trim and what to check when buying used
Audi SQ8 — the sporty version of the Q8 with powerful S engine variants, quattro drive and tuned suspension. We look at how the diesel and petrol versions differ, what trim is common and what to look out for when buying a used car.
SQ8 in brief
The SQ8 is a large coupe-style SUV built on the same platform as the Q8, Porsche Cayenne and Lamborghini Urus. It differs from the standard Q8 with a more powerful engine, sportier suspension and S styling details.
This is an expensive car both to buy and to run: large wheels, a powerful engine and complex electronics mean that maintenance costs can be high.
Which version to choose
The car is made in one generation (since 2019), but with different engines. First came the 4.0 TDI diesel with around 435 hp and an electric compressor, followed by the 4.0 TFSI petrol V8 with around 507 hp.
Around 2023, the SQ8 was updated: the headlights and overall look changed. Updated cars are newer and have more modern trim, but you'll have to pay more for them.
Don't confuse the SQ8 e-tron — this is a separate electric model that is technically different from the SQ8 with an internal combustion engine.
Engines and gearboxes
The diesel 4.0 TDI V8 with turbochargers and a 48 V system boasts a huge amount of torque, and fuel consumption, relative to power, isn't the highest. The petrol 4.0 TFSI V8 is quicker and more refined in sound, but it's also quite thirsty.
Every SQ8 comes with an 8-speed automatic gearbox (tiptronic) and permanent quattro four-wheel drive. The car often features air suspension and additionally controlled rear wheels.
What to check when buying a used SQ8
Check that all suspension functions work, that the car handles well in a straight line, and that there are no faults. Air suspension and active stabilisation systems are expensive to repair.
Check all screens, lights, and electronics — the SQ8 is packed with gadgets, so minor faults can add up. Ask for the full service and recall campaign history.
Large wheels and low-profile tyres wear out quickly, and that's a significant running cost.
Trim levels
Names and equipment vary by market and year; the SQ8 is built as one sporty version, with the kit depending on the added packs.
SQ8 TDI
2019–2021The first versions with a diesel engine and massive torque.
- 4.0 TDI, around 435 hp
- Often — air suspension and quattro sport differential
- Often — matrix LED headlights
SQ8 TFSI
From 2020Petrol V8 with better acceleration and a powerful sound.
- 4.0 TFSI, around 507 hp
- Often — 22-inch alloy wheels
- Often — „Virtual cockpit plus“ and a large touchscreen
SQ8 po atnaujinimo
From 2023Refreshed styling and a more modern tech offering.
- Updated LED and OLED tail lights
- Often — Matrix HD headlights
- Often — enhanced multimedia
Bazinė SQ8 įranga
All year roundBase trim: standard S equipment with few optional extras.
- Often — smaller than 22-inch alloy wheels
- Often — standard suspension and seats
- Less additional comfort equipment
Comparing versions
| SQ8 TDI | SQ8 TFSI | SQ8 po atnaujinimo | |
|---|---|---|---|
| Who it's for | For high-mileage drivers | For those who love power | For a newer car |
| Wheels (most often) | 21–22 col. | 21–22 col. | 21–22 col. |
| Engine | 4.0 TDI, around 435 hp | 4.0 TFSI, around 507 hp | 4.0 TFSI, around 507 hp |
| Headlights | LED, often matrix | LED, often matrix | Updated LED / OLED |
| Price in the used market (relatively) | €€€ | €€€ | €€€ |
If you cover long distances, the diesel SQ8 might be more appealing, while power and sound enthusiasts will opt for the TFSI. The updated car is superior in terms of looks and technology, but pricier in the used market.
Pros
- High power and sporty handling
- Luxurious and spacious interior
- Permanent quattro drive
- Modern tech offerings
Cons
- High maintenance and repair costs
- High fuel consumption, especially for the TFSI version
- Expensive tyres and alloy wheels
Frequently asked questions
How does the SQ8 differ from the Q8?
The SQ8 boasts a more powerful engine, sportier suspension and S-style design elements. The Q8 is more sedate and usually cheaper to buy and run.
Is the SQ8 reliable?
Engine and gearbox reliability is adequate if the car is well-maintained. The biggest risk comes from expensive electronics and suspension systems, so a thorough check is essential.
Is the SQ8 economical?
No — it’s a large, powerful car. The diesel version is more economical than the petrol, but daily running costs are still high.
Updated 2026-10-17 · Trim levels and equipment vary by market and model year — check the equipment of the specific car. · Translated automatically
