2023 Mercedes-Benz Gls-Class Maintenance
Manufacturer-Recommended Service Schedule
The manufacturer-recommended maintenance schedule for the 2023 Mercedes-Benz Gls-Class is shown above. Keeping up with these service intervals prevents premature wear, maintains fuel economy, and protects your powertrain warranty.
The most critical intervals are engine oil changes (typically every 5,000–10,000 miles for full synthetic), tire rotation (every 5,000–7,500 miles), and brake fluid (every 2–3 years). Always verify intervals against your owner's manual — the schedule varies by driving conditions.
| Service Item | Interval | Notes |
|---|---|---|
| Engine Oil & Filter | 10,000 mi / 12 mo | MB 229.5 0W-40; ~8.5 qt (M256 I6) or 9.0 qt (M176 V8) |
| Tire Rotation | 10,000 miles | — |
| Cabin Air Filter | 20,000 mi / 24 mo | — |
| Engine Air Filter | 40,000 mi / 48 mo | — |
| Brake Fluid | 20,000 mi / 24 mo | DOT 4+ |
| Transmission Fluid | 60,000 miles | 9G-TRONIC |
| Coolant | 100,000 mi / 60 mo | — |
| Spark Plugs | 60,000 miles | — |
| Transfer Case Fluid | 60,000 miles | 4MATIC |
| Air Suspension | 80,000 miles | AIRMATIC; inspect air springs |
| Battery | 60 months | AGM; code after replacement |
Key Fluid & Maintenance Specs
Motor Oil
0W-40 Full Synthetic — 8.5 qt
Lug Nut Torque
96 ft-lbs
Brake Fluid
DOT 4
Coolant
MB 325.0 (Blue, silicate-free)
More for the 2023 Mercedes-Benz Gls-Class