Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2021 G550.
The 2021 Mercedes G550 Overview’s engine is calibrated for 10.0 qt of oil and supports viscosities of 0W‑20, 0W‑30, or 0W‑40, a specification that reflects its engineering emphasis on durability, and the 2021 model year continues the G550’s established reputation for long‑term reliability, reinforcing confidence in its enduring performance.
Fluid capacities, tune-up values and fuel economy at a glance.
Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.
From the factory this vehicle uses OE oil filter 1761800800. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.
| Engine oil filter | 1761800800 |
| Engine air filter | 1770940104 |
| Spark plug | 0001590500 |
| Battery | 0019828208 |
| Front wiper blades | 4638200407 |
| Thermostat | 1772008801 |
| Cabin air filter | 4638301102 |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 10.0 qt of 0W-20 / 0W-30 / 0W-40 engine oil, MB Sheet 235.0 in the differential, DOT 4 brake fluid. Torque the oil drain plug to Use a new seal: 15.0 ft-lbs.
| Automatic Transmission Fluid | MB Sheet 236.17 |
| Automatic Transmission Fluid Capacity | 10.5 qt |
| Brake Fluid | DOT 4 |
| Differential Gear Oil | MB Sheet 235.0 |
| Engine Coolant | Coolant listed on either MB 325.6 |
| Engine Oil Capacity | 10.0 qt |
| Power Steering Fluid | MB P/N A0009891004 |
| Transfer Case Fluid | MB Sheet 239.41 |
| Cylinder Head Instructions | Use new bolts only. |
| Intake Manifold to Engine Bolts | 9.6 ft-lbs |
| Engine Oil Pan Drain Plug | Use a new seal: 15.0 ft-lbs |
| Differential Fill Plug | 66.0 ft-lbs |
| Differential drain Plug | Front: 66.0 ft-lbs |
| Transfer Case Fill Plug | 10.0 ft-lbs |
| Transfer Case Drain Plug | 10.0 ft-lbs |
| Spark Plug Manufacturer | Mercedes-Benz |
| Spark Plug Gap | 0.028 in |
| Spark Plug Torque | 16.0 ft-lbs |
| Minimum Pad Thickness | 0.079" in |
| 1 | 44.0 inch lbs., Step 2: 22.0 ft. lbs., Step 3: 90°. | 44 in |
| 1 | 148.0 ft. lbs., Step 2: 90° | 148 ft. lbs |
| 1 | Bolts 1-10 | 30 ft. lbs |
| 1 | 15.0 ft. lbs., Step 2: 33.0 ft. lbs., Step 3: 90° | 15 ft. lbs |
| 1 | 10.3 ft. lbs., Step 2: 10.3 ft. lbs., Step 3: 10.3 | 10.3 ft. lbs |
| 1 | 44.0 inch lbs., Step 2: 15.0 | 44 in |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
Showing 2 of 3 campaigns on record for this vehicle.
Mercedes-Benz, LLC (MBUSA) is recalling certain 2021 G550, AMG G63, E350, E450, AMG CLS53, AMG E53, AMG GT43, AMG GT53, AMG GT63, 2021-2022 CLS450, and AMG E63 vehicles. The rear seat belt automatic locking retractors… Remedy: Dealers will inspect, and replace as necessary, the rear seat belt assemblies, free of charge. Owners notified of the voluntary recall campaign by an interim letter on August 13…
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 C-Class, E-Class, E-Class Coupe and Convertible, GLC, CLS, AMG GT 4-door Coupe and G-Class vehicles. Please refer to MBUSA's recall report for specific vehicle… Remedy: MBUSA will notify owners, and dealers will replace the seat position switches, free of charge. Owner letters were mailed May 21, 2021. Owners may contact MBUSA customer service at…
The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.
Decode factory build data for a specific vehicle by VIN.
Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.
Cross-vehicle references for the kinds of data on this page.
10.0 qt of 0W-20, 0W-30, 0W-40; Above 23°F: 20W-40, 20W-50; Above 5°F: 15W-30, 15W-40, 15W-50; Above -4°F: 10W-30, 10W-40, 10W-50, 10W-60; Above -13°F: 5W-30, 5W-40, 5W-50. Oil meeting MB Sheet: 229.52 or 229.61, per the factory manual.
NHTSA lists 3 recall campaign(s) for this model year. Check your specific vehicle by VIN.