Mercedes-Benz GLS 2023–2026 car dimensions: 5215 mm long, 2030 mm wide and 1838 mm high. Unladen weight is 2,655 kg. Braked towing is 3,500 kg.
Dual 12.3-inch screens run MBUX with wireless Apple CarPlay and Android Auto. Five-zone climate control covers all three rows. Standard driver aids include adaptive cruise via DISTRONIC, active brake assist, blind-spot assist, lane-keeping assist, front and rear parking sensors plus 360-degree camera with reversing view.
Cargo volume is 355 litres behind the third row and expands to 2400 litres with the rear seats folded.
Braked towing capacity is 3500 kg and unbraked is 750 kg. Payload sits at 735 kg. Self-leveling AIRMATIC air suspension with adaptive damping keeps the vehicle stable when loaded or towing.
The cabin feels spacious and refined with multicontour front seats that heat, ventilate and massage via eight programs including hot stone and active workout modes. Five-zone climate control covers all rows with dedicated third-row vents. A large panoramic roof spans over one square metre for open views. Heated second-row seats and steering wheel come standard. Air Balance adds fragrance and ionisation. Optional acoustic package with laminated glass further quiets the interior. All three rows offer power adjustment for easy seven-passenger comfort.
Premium unleaded gasoline required. fuel economy 14 city/20 highway mpg US or 16.6/11.5 L/100 km Canada.
Fuel tank holds 90 L or 23.8 gallons.
ASSYST Plus service system. oil change every 10,000 miles or 12 months.
Service A at 10,000 miles/1 year then every 20,000 miles/2 years. Service B alternates.
No NHTSA or IIHS crash-test ratings published.
Standard safety kit includes PRE-SAFE, Active Brake Assist with pedestrian detection, blind-spot monitoring, adaptive cruise DISTRONIC, lane-keep assist and multiple airbags.
The GLS 580 runs a 4.0L V8 biturbo mild hybrid on premium unleaded fuel. Official economy stands at 14 mpg city and 20 mpg highway in US figures, or 16.6 L/100 km city and 11.5 L/100 km highway in Canadian data. The tank capacity is 90 litres.
Servicing uses the ASSYST Plus display that tracks needs by miles and time. Oil and filter changes fall every 10,000 miles or 12 months with approved synthetic grades. Service A covers basic checks at those intervals. Service B adds cabin filter and brake fluid every 20,000 miles.
Safety equipment is extensive and standard. It features PRE-SAFE preventive systems, Active Brake Assist that can stop for pedestrians, blind-spot assist, DISTRONIC adaptive cruise with stop-and-go, lane-keeping and change assists, Attention Assist, surround cameras and a full set of front, side, curtain and knee airbags. No crash-test star ratings appear for this generation from NHTSA or IIHS.
Living with the car centres on the standard AIRMATIC air suspension that levels and damps for a composed ride. Soft-close doors and power-folding seats simplify daily use. Basic warranty runs four years or 50,000 miles with matching powertrain cover.
Length 5215 mm, Width 2030 mm, Height 1838 mm, Wheelbase 3135 mm (GLS 2023–2026)
Sources: manufacturer data, mercedes-benz.ca 2026 GLS 580 4MATIC page, auto-data.net GLS 580 facelift 2023, dealer pages.