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Mercedes-Benz GLS (2020–2026)
Maintenance Schedule
10 recurring services keep the 2020–2026 Mercedes-Benz GLS healthy — starting with oil changes every 10,000 miles. Budget roughly $4,300–7,800 in routine maintenance over 100,000 miles at typical U.S. shop prices.
Applies to model years 2020, 2021, 2022, 2023, 2024, 2025, 2026
Full schedule
Intervals follow the factory maintenance schedule for the 2020-2026 Mercedes-Benz GLS. Cost ranges are typical U.S. shop prices.
| Service | Interval | Est. cost | Notes |
|---|---|---|---|
| Oil Change | Every 10,000 mi or 12 mo | $80–120 | Engine oil and filter replacement |
| Software Update | Every 10,000 mi or 6 mo | $0–150 | Over-the-air MBUX updates |
| Cabin Air Filter | Every 15,000 mi or 12 mo | $50–70 | Cabin air filter replacement |
| Brake Fluid | Every 24,000 mi or 2 yr | $105–140 | Brake fluid replacement |
| 48V System Check | Every 30,000 mi or 2 yr | $200–300 | Mild hybrid system inspection |
| Tune-up | Every 60,000 mi or 4 yr | $450–650 | Spark plugs, air filter, fuel filter |
| Transfer Case | Every 60,000 mi or 5 yr | $250–350 | 4Matic transfer case fluid |
| E-Active Body Control | Every 60,000 mi or 6 yr | $1,000–1,500 | Electronic active suspension service |
| Transmission Service | Every 80,000 mi or 8 yr | $500–680 | 9G-Tronic transmission fluid |
| Coolant Flush | Every 120,000 mi or 12 yr | $220–300 | Engine coolant replacement |
Common questions
How often should I change the oil on a 2020–2026 Mercedes-Benz GLS?
Every 10,000 miles or 12 months, whichever comes first. A typical U.S. shop charges $80–120. Engine oil and filter replacement.
How much does it cost to maintain a Mercedes-Benz GLS (2020–2026)?
Routine maintenance on the 2020–2026 Mercedes-Benz GLS runs roughly $4,300–7,800 over 100,000 miles at typical U.S. shop prices, spread across 10 recurring services. Independent shops usually land near the low end; dealers near the high end.
What is the most expensive scheduled service on this GLS?
E-Active Body Control at $1,000–1,500, due every 60,000 miles. Electronic active suspension service.
Cost ranges are estimates for typical U.S. independent shops and dealers; your local prices will vary. Always confirm intervals against your owner's manual — severe driving conditions (towing, short trips, extreme heat or cold) shorten many of them.