MercedesC3002018Overview/mercedes/c300/2018/base/

2018 Mercedes C300

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 C300.

Model year2023201820172011

Quick specs

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

Lug nut torque96 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 47 · 680 CCA battery, OE oil filter 0009972405. 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 47 · 680 CCAOEM · verified
Tire sizeP245/45R18; Rear: P245/40R18OEM · verified
Wheel / rim7.5; Rear: 8.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter0009972405 alt 0259976448
Engine air filter2740940104
Battery0019828108 alt 0019828008
Front wiper blades2058204503
Thermostat024997634564 alt 2742003400
Cabin air filter1668300218

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length185 in
Overall width71.3 in
Overall height55.1 in
Wheelbase111.8 in
Curb weight3979 lb
Track (front / rear)61.4 / 61 in

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

Torque lug nuts to 96 ft-lbs. The firing order is 1-3-4-2. 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.

Engine torques

Crankshaft Position (CKP) Sensor Bolt(s)7.4 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)7.4 ft-lbs
Engine Coolant Temperature (ECT) Sensor Bolt(s)9.0 ft-lbs
Oxygen (O2S) Sensor Bolt(s)30.0 ft-lbs
Knock Sense (KS) Bolt(s)16.0 ft-lbs
Intake Manifold to Engine Bolts10 ft-lbs
Exhaust Manifold to Cylinder Head Bolts11 ft-lbs
Oil Pan to Block Bolts7.4 ft-lbs

Chassis torques

Lug Nuts96 ft-lbs

Ignition

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

Battery & A/C

Standard BCI Group Number47
Standard BCI Cranking Performance680 cca
Optional BCI Group Number48; 48
Optional BCI Cranking Performance70

Brakes

Brake Caliper Bolt to Carrier TorqueFront: 26; Rear: 18
Brake Caliper Carrier to Hub Bolt TorqueRear: 44 ft-lbs
Vented Rotor Minimum Thickness for ReplacementFront: 1.181; Rear: .764

Multi-step torque procedures OEM · verified

Camshaft Bearing/Carrier Cap Bolts or Studs — tightening sequence 1 stages
189.0 inch lbs., Step 2: 9089 in
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
144.0 inch lbs., Step 2: 132.0 inch lbs., Step 3: 9044 in
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
1148.0 ft. lbs., Step 2: 180148 ft. lbs
Cylinder Head — tightening sequence 6 stages

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.

1Bolts 1-107.4 ft. lbs
229.5 ft. lbs.29.5 ft. lbs
390 degrees90 degrees
490 degrees90 degrees
590 degrees90 degrees
614.8
Engine Flywheel Bolts — tightening sequence 1 stages
133.0 ft. lbs., Step 2: 9033 ft. lbs
Main Bearings — tightening sequence 1 stages
127.0 ft. lbs., Step 2: 12027 ft. lbs

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 C300. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
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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.