Mercedes-Benz Gls ReliabilityAll Years Ranked (2017–2025)
Side-by-side reliability scores, risk levels, and owner-cost projections for every Mercedes-Benz Gls we've analyzed. Identify the best years to buy, the ones to avoid, and the problems that follow the Gls across generations.
Average Score
78/100
Best Year
2022 Mercedes-Benz Gls
Score 82
Weakest Year
2018 Mercedes-Benz Gls
Score 72
Every Mercedes-Benz Gls Ranked
Sorted by reliability score. Each link opens the full year-specific report.
A supremely luxurious family hauler with cutting-edge tech, but be prepared for premium-level maintenance and potential repair bills.
Top risks: Electrical/Infotainment System (MBUX) · AIRMATIC Air Suspension · 48V Mild-Hybrid System
A magnificent luxury SUV, but its advanced technology demands diligent maintenance and a healthy repair budget to ensure long-term satisfaction.
Top risks: 48V Mild-Hybrid System (EQ Boost) · Airmatic Air Suspension · Advanced Electrical & MBUX Infotainment
A supremely comfortable luxury SUV that demands a healthy maintenance budget to truly enjoy its longevity.
Top risks: Airmatic Air Suspension · Electrical/Electronics · Engine Oil Leaks (V8 Models)
A supremely comfortable luxury SUV, but be prepared for premium ownership costs and potential high-dollar repairs.
Top risks: AIRMATIC Air Suspension · Electrical/Infotainment System · Engine Oil Leaks (V8 models)
A superb luxury experience comes with a premium price tag for upkeep and a careful eye on its complex tech.
Top risks: Air Suspension (AIRMATIC/E-ACTIVE BODY CONTROL) · 48V Mild-Hybrid System (EQ Boost - GLS 450) · MBUX Infotainment & Electrical Systems
A supremely luxurious and capable SUV, but its advanced technology and systems carry a notable financial risk for long-term ownership.
Top risks: Electrical/Infotainment System (MBUX) · 48V Mild-Hybrid System (EQ Boost) · AIRMATIC/E-ACTIVE BODY CONTROL Suspension
A supremely luxurious and capable SUV, but its sophisticated technology and premium components ensure a significant financial commitment for long-term reliability.
Top risks: AIRMATIC/E-ACTIVE BODY CONTROL (E-ABC) Suspension · MBUX Infotainment & Electrical Systems · EQ Boost (Mild Hybrid System)
A magnificent luxury SUV that demands diligent, professional maintenance to truly shine.
Top risks: Air Suspension / E-Active Body Control · Advanced Electrical & Infotainment (MBUX) · Engine Auxiliary Components (Turbochargers, Sensors, Gaskets)
A powerhouse of luxury and capability, but prepare your wallet for its intricate and often expensive maintenance needs.
Top risks: AIRMATIC Air Suspension System · Electrical System & Modules · Engine Oil Leaks & PCV System
Problems That Follow the Gls Across Generations
Issues that appear in the top-3 risks across multiple model years — the cost of ownership you can actually predict.
Airmatic Air Suspension
Appears in 2 model years · 22% of generations
AIRMATIC Air Suspension
Appears in 2 model years · 22% of generations
MBUX Infotainment & Electrical Systems
Appears in 2 model years · 22% of generations
Electrical/Infotainment System (MBUX)
Appears in 2 model years · 22% of generations
48V Mild-Hybrid System (EQ Boost)
Appears in 2 model years · 22% of generations