MercedesGLS5502018Overview/mercedes/gls550/2018/base/

2018 Mercedes GLS550

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 GLS550.

The 2018 Mercedes GLS550 is a vehicle from the 2018 model year produced by Mercedes-Benz under the GLS550 designation. This reference page serves to frame the vehicle for researchers by aggregating its defining characteristics into a cohesive summary. The overview concludes by situating this model year within the broader reliability context of the GLS550 lineage.

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Lug nut torque110 ft-lbsOEM · verified

Fitment & sizes

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.

Battery groupBCI 49 · 850 CCAOEM · verified
Tire sizeP275/50R20OEM · verified
Wheel / rim8.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter0209975445 alt 2781840280
Spark plug0041598103
Battery0019828208 alt 000982960864
Front wiper blades166820104528 alt 1668207800
Thermostat2782001600
Cabin air filter1668300218

Service quick specs OEM factory data

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. The firing order is 1-5-4-2-6-3-7-8.

Engine torques

Crankshaft Position (CKP) Sensor Bolt(s)7.4 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)7.4 ft-lbs
Intake Manifold to Engine Bolts6.6 ft-lbs
Oil Pan to Block Bolts7.4 ft-lbs
Engine Oil Pan Drain Plug20.0 ft-lbs

Chassis torques

Lug Nuts110 ft-lbs

Ignition

Cylinder Firing Order1-5-4-2-6-3-7-8
Spark Plug ManufacturerMercedes-Benz
Spark Plug Gap.031 in
Spark Plug Torque17 ft-lbs

Battery & A/C

Standard BCI Group Number49
Standard BCI Cranking Performance850 cca
Optional BCI Group NumberAuxiliary: 400
Optional BCI Cranking PerformanceAuxiliary: 200 cca

Brakes

Brake Caliper Bolt to Carrier TorqueFront: 41; Rear: 26
Brake Caliper Carrier to Hub Bolt TorqueFront: 59; Rear: 44
Vented Rotor Minimum Thickness for ReplacementFront: 1.315; Rear: .764

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 1 stages
144.0 inch lbs., Step 2: 18.0 ft. lbs., Step 3: 9044 in
Engine Flywheel Bolts — tightening sequence 1 stages
115.0 ft. lbs., Step 2: 33.0 ft. lbs., Step 3: 9015 ft. lbs
Oil Pump to Cylinder BLock Bolts/Studs — tightening sequence 1 stages
144.0 inch lbs., Step 2: 15.044 in

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

2
Open recalls
NHTSA campaigns
0
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
0
Owner complaints
0 involved a crash · 0 a fire

No owner complaints on record with NHTSA for this vehicle.

Recalls NHTSA · verified

Showing 2 of 2 campaigns on record for this vehicle.

18V539000Service Brakes, HydraulicReported 16/08/2018

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…

17V816000Latches/Locks/Linkages:Doors:LatchReported 18/12/2017

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017 GLE400 4Matic, GLE350 4Matic, GLE350, GLE550e 4Matic, GLE43 AMG 4Matic, GLE63 AMG 4Matic, GLS450, GLE63S 4Matic, GLS63 4Matic, S550e, S600, S63 AMG 4Matic, S65… Remedy: MBUSA will notify owners, and dealers will inspect the left rear door lock, replacing it as necessary, free of charge. The recall is expected to begin in January 2018. Owners may…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific GLS550. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

Does the 2018 GLS550 have open recalls?

NHTSA lists 2 recall campaign(s) for this model year. Check your specific vehicle by VIN.