Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 GLS450.
The 2018 Mercedes GLS450 Overview reference page addresses the full-size luxury SUV's fourth model year under the GLS nomenclature, succeeding the GL-Class lineup. This entry serves as the primary index for specifications, features, and documented service information specific to the 2018 production run. Researchers should consult the detailed sections that follow for platform architecture, powertrain configurations, equipment grades, and model-year-specific technical bulletins.
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 a BCI 49 · 850 CCA battery, OE oil filter 0209975445. 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 | 0209975445 alt 2761800009 |
| Engine air filter | 276094050490 |
| Battery | 000982960864 alt 0019828208 |
| Front wiper blades | 166820104528 alt 1668207800 |
| Thermostat | 276201068064 alt 2762000600 |
| Cabin air filter | 1668300218 |
Capacities, torques and tune-up values from the factory service manual.
Torque lug nuts to 110 ft-lbs, the oil drain plug to 20.0 ft-lbs. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.
| Crankshaft Position (CKP) Sensor Bolt(s) | 7.4 ft-lbs |
| Camshaft Position (CMP) Sensor Bolt(s) | 7.4 ft-lbs |
| Intake Manifold to Engine Bolts | 6.6 ft-lbs |
| Exhaust Manifold to Cylinder Head Bolts | 15 ft-lbs |
| Oil Pan to Block Bolts | 9.0 ft-lbs |
| Engine Oil Pan Drain Plug | 20.0 ft-lbs |
| Lug Nuts | 110 ft-lbs |
| Spark Plug Manufacturer | Mercedes-Benz |
| Spark Plug Gap | .031 in |
| Spark Plug Torque | 17 ft-lbs |
| Standard BCI Group Number | 49 |
| Standard BCI Cranking Performance | 850 cca |
| Optional BCI Group Number | Auxiliary: 400 |
| Optional BCI Cranking Performance | Auxiliary: 200 cca |
| Engine Compression | 174 |
| Brake Caliper Bolt to Carrier Torque | Front: 41; Rear: 26 |
| Brake Caliper Carrier to Hub Bolt Torque | Front: 59; Rear: 44 |
| Vented Rotor Minimum Thickness for Replacement | Front: 1.315; Rear: .764 |
| 1 | 148.0 ft. lbs., Step 2: 180 | 148 ft. lbs |
| 1 | 148.0 ft. lbs., Step 2: 180 | 148 ft. lbs |
Prep Do not reuse old bolts. Coat new bolts lightly with specified motor oil.
| 1 | Bolts 1-8 15.0 ft. lbs. | 15 ft. lbs |
| 2 | Bolts 1-8 | 29.5 ft. lbs |
| 3 | Bolt 1-8 | 90 degrees |
| 4 | Bolts 1-8 90 degrees | 90 degrees |
| 5 | Bolts 9 10.0 ft. lbs. | 10 ft. lbs |
| 1 | 15.0 ft. lbs., Step 2: 33.0 ft. lbs., Step 3: 90 | 15 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 1 of 1 campaigns on record for this vehicle.
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 Mercedes-Benz GLE350 4Matic, GLE350, GLS450 4Matic, GLS550 4matic, GLE43 AMG 4Matic, GLE63 AMG 4Matic, GLE63S AMG 4Matic, and GLS63 AMG 4Matic vehicles. The rear… Remedy: MBUSA will notify owners, and dealers will bleed the rear axle brake system, free of charge. The recall began September 14, 2018. 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.
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Cross-vehicle references for the kinds of data on this page.
NHTSA lists 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.