Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 G550.
This reference entry centers on the 2018 Mercedes-Benz G550. The supplied source data, however, contains no further verified facts about its body architecture, platform, engine, standout specifications, or reliability history. Because the rules prohibit inventing figures, causes, performance claims, or reliability judgments, the requested expert framing cannot be produced from the available information alone. Additional verified details would be needed to write a complete opening paragraph.
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 0309970748. 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 | 0309970748 alt 278180000990 |
| Engine air filter | 177094000464 |
| Fuel filter | 1724700400 |
| Spark plug | 0001590500 |
| Battery | 0019828208 alt 000982960864 |
| Front wiper blades | 4638200545 |
| Thermostat | 1772008801 |
Capacities, torques and tune-up values from the factory service manual.
Torque lug nuts to 96 ft-lbs. The firing order is 1-5-4-2-6-3-7-8. 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.
| Oxygen (O2S) Sensor Bolt(s) | 30.0 ft-lbs |
| Knock Sense (KS) Bolt(s) | 16.0 ft-lbs |
| Intake Manifold to Engine Bolts | 9.6 ft-lbs |
| Oil Pump to Cylinder BLock Bolts/Studs | 18.0 ft-lbs |
| Lug Nuts | 96 ft-lbs |
| Cylinder Firing Order | 1-5-4-2-6-3-7-8 |
| Spark Plug Manufacturer | Mercedes-Benz |
| Spark Plug Gap | .031 in |
| Spark Plug Torque | 16 ft-lbs |
| Standard BCI Group Number | 49 |
| Standard BCI Cranking Performance | 850 cca |
| Engine Compression | 189 |
| Brake Caliper Bolt to Carrier Torque | Front: NS; Rear: 21 |
| Brake Caliper Carrier to Hub Bolt Torque | Rear: 86 ft-lbs |
| Vented Rotor Minimum Thickness for Replacement | Front: .511; Rear: .551 |
| Maximum Rotor Runout | Front: .0039; Rear: .0039 |
| 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 |
Prep Do not reuse old bolts. Use new bolts coated with clean engine oil. Tighten all bolts to finger tight then continue on with the following procedure.
| 1 | Bolts 1-11 | 30 ft. lbs |
| 2 | Bolts 1-11 | 90 degrees |
| 3 | Bolts 1-11 | 90 degrees |
| 4 | Bolt 11 | 11 ft. lbs |
| 1 | 15.0 ft. lbs., Step 2: 33.0 ft. lbs., Step 3: 90 | 15 ft. lbs |
| 1 | 10.3 ft. lbs. | 10.3 ft. lbs |
| 2 | 10.3 ft. lbs. | 10.3 ft. lbs |
| 3 | 10.3 | |
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 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class… Remedy: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12…
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.