Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2021 GLS450.
The 2021 Mercedes GLS450 is a vehicle featuring a powertrain with a 9.0 qt engine oil capacity. This model is compatible with oil viscosities of 0W-20, 0W-30, or 0W-40. These specifications are key components of the vehicle's maintenance overview.
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 0289974745. 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 | 0289974745 alt 2561840080 |
| Engine air filter | 6540940004 |
| Spark plug | 2541590000 |
| Battery | 0019828208 |
| Front wiper blades | 1678209201 alt 1678209401 |
| Thermostat | 2562002000 |
| Cabin air filter | 1678350200 |
Capacities, torques and tune-up values from the factory service manual.
This engine holds 9.0 qt of 0W-20 / 0W-30 / 0W-40 engine oil, DOT 4 brake fluid. The firing order is 1-5-3-6-2-4.
| Automatic Transmission Fluid | MB Sheet 236.17 |
| Automatic Transmission Fluid Capacity | 10.5 qt |
| Brake Fluid | DOT 4 |
| Engine Oil Capacity | 9.0 qt |
| Transfer Case Fluid | MB Sheet 239.41 |
| Transfer Case Fluid Capacity | Code 430 |
| Cylinder Head Instructions | Use new bolts only. |
| Intake Manifold to Engine Bolts | Bolts 1-9: 6.0 ft-lbs |
| Differential Fill Plug | Front: 26.0 ft-lbs; Rear: 37.0 ft-lbs |
| Differential drain Plug | Front: 26.0 ft-lbs; Rear: 37.0 ft-lbs |
| Transfer Case Fill Plug | 10.0 ft-lbs |
| Transfer Case Drain Plug | 10.0 ft-lbs |
| Cylinder Firing Order | 1-5-3-6-2-4 |
| Spark Plug Manufacturer | Mercedes-Benz |
| Spark Plug Gap | 0.028 in |
| Spark Plug Torque | 11.0 ft-lbs |
| Minimum Pad Thickness | 0.079" in |
| 1 | 37.0 ft. lbs., Step 2: 180° | 37 ft. lbs |
| 1 | 15.0 ft. lbs., Step 2: 15.0 | 15 ft. lbs |
Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.
Showing 2 of 12 campaigns on record for this vehicle.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2019-2021 CLA-Class, GLE/GLS-Class, A-Class, E-Class, E-Class Coupe and Convertible, GLA/GLB-Class, GLC-Class, CLS-Class, and AMG GT-Class 4-door Coupe vehicles… Remedy: The multimedia system software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed beginning June 28…
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2020 CLA250, CLA250 4MATIC and CLA35 AMG 4MATIC, 2020-2021 GLE350, GLE350 4MATIC, GLE450 4MATIC, GLS450 4MATIC and GLS580 4MATIC and 2021 GLE53 AMG Coupe, GLE63S AMG… Remedy: MBUSA will notify owners, and dealers will update the instrument cluster software, free of charge. The recall began March 31, 2020. 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.
9.0 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: 229.51, 229.52, 229.61 and 229.71, per the factory manual.
NHTSA lists 12 recall campaign(s) for this model year. Check your specific vehicle by VIN.