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2018 BMW 430i

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2018 430i.

Transmission Automatic (S8)

The 2018 BMW 430i is catalogued with an EPA-estimated fuel economy of 24/34/27 mpg and an Automatic (S8) transmission. These paired specifications form the documented efficiency and drivetrain baseline for the model year, supplying researchers with the exact factory-rated metrics. For the 2018 variant, this specific combination of EPA figures and S8 automatic hardware represents the definitive mechanical reference set.

Model year2021 2020 2018

Quick specs

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

Lug nut torque103 ft-lbsOEM · verified

EPA fuel economy24/34/27 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 94R · 800 CCA battery, OE oil filter 11425B3A1A5. 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 94R · 800 CCAOEM · verified

Tail / brake / turnREVERSEOEM · verified

Tire sizeP225/45R18OEM · verified

Wheel / rim8.0; Optional: 8.0; Front Optional: 8.0; Rear Optional: 8.5; Front Optional: 8.0; Rear Optional: 8.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter	11425B3A1A5 alt 11428575211
Engine air filter	13718632502
Spark plug	12120040551
Battery	61216806755
Front wiper blades	61615A43587
Thermostat	11538658573 alt 11538658574
Cabin air filter	64119237555 alt 64116821995

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

Transmission

Automatic (S8)

Dimensions & weight NHTSA vPIC

Overall length	182.7 in
Overall width	72 in
Overall height	54.3 in
Wheelbase	110.6 in
Curb weight	4211 lb
Track (front / rear)	61 / 62.6 in
Weight distribution (front / rear)	48/52

Ratings & economy EPA / vPIC

EPA city / highway / combined	24 / 34 / 27 mpg
Drivetrain	Rear-Wheel Drive
Recommended fuel	Premium Gasoline

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent road tests for the 430i of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

5.7 sec0–60 mph (tested)quickest 5.70 sec — 2018 Coupe (M Sport)

Year	Trim / engine	0–60	¼ mile	HP	Drivetrain
2018	Coupe (M Sport) 2.0L Turbo I-4	5.70 sec	14.30 sec	248 hp	RWD
2018	xDrive Gran Coupe (Luxury) 2.0L Turbo I-4	5.70 sec	14.30 sec	248 hp	AWD

Service quick specs OEM factory data

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

This engine DOT 4 brake fluid. Torque lug nuts to 103 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.

Lubricants & capacities

Brake Fluid	DOT 4
Clutch Fluid	DOT 4

Engine torques

Crankshaft Position (CKP) Sensor Bolt(s)	7.4 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)	3.0 ft-lbs
Camshaft Bearing/Carrier Cap Bolts or Studs	14.0 ft-lbs
Oxygen (O2S) Sensor Bolt(s)	35.0 ft-lbs
Knock Sense (KS) Bolt(s)	18.0 ft-lbs
Intake Manifold to Engine Bolts	7.3 ft-lbs
Intake Manifold to Engine Bolts	7.3 ft-lbs
Nitrogen Oxide (NOX) Sensor Bolt(s)	37.0 ft-lbs

Chassis torques

Lug Nuts

103 ft-lbs

Battery & A/C

Refrigerant	R134a
Refrigerant Capacity	1.19-1.25 lbs
Oil Group	PAG
Oil Type	46
Standard BCI Group Number	94R
Standard BCI Cranking Performance	800 cca
Standard BCI Group Number	49
Standard BCI Cranking Performance	900 cca

Service checks

RPM

725.0

Multi-step torque procedures OEM · verified

Connecting Rod (Large End) Bearings — tightening sequence 3 stages

1	14.0 ft. lbs.	14 ft. lbs
2	70 degrees	70 degrees
3	70

Cylinder Head — tightening sequence 3 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.

1	22.0 ft. lbs.	22 ft. lbs
2	90 degrees.	90 degrees
3	180 degrees	180 degrees

Exhaust Manifold to Cylinder Head Bolts — tightening sequence 5 stages

1	7.4 ft. lbs.	7.4 ft. lbs
2	7.4 ft. lbs.	7.4 ft. lbs
3	11.8 ft. lbs.	11.8 ft. lbs
4	11.8 ft. lbs.	11.8 ft. lbs
5	11.8

Exhaust Manifold to Cylinder Head Bolts — tightening sequence 5 stages

1	7.4 ft. lbs.	7.4 ft. lbs
2	7.4 ft. lbs.	7.4 ft. lbs
3	11.8 ft. lbs.	11.8 ft. lbs
4	11.8 ft. lbs.	11.8 ft. lbs
5	11.8

Main Bearings — tightening sequence 3 stages

1	18.0 ft. lbs.	18 ft. lbs
2	60 degrees	60 degrees
3	60

Factory maintenance schedule OEM · verified

This vehicle uses condition-based service — it signals maintenance needs through its onboard service indicator rather than fixed mileage intervals. Items on the factory schedule:

Replace	Engine Oil Filter · Spark Plugs · Engine Oil · Cabin Air Filter · Engine Air Filter Element
Inspect	Windshield Washer System · Body Water Drains · Underbody · Brake Line · Tire Repair Kit Sealant · Disc Brake Caliper · Brake Rotor · Air Bag System
Road test	Universal Vehicle Operation
Inspect Fluid Level	Engine Coolant System
Reset	Tire Pressure Monitoring System
Drain, Refill & Bleed	Brake Hydraulic System

Reliability & federal safety record

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

Open recalls

NHTSA campaigns

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

Owner complaints

0 involved a crash · 0 a fire

No owner complaints on record with NHTSA for this vehicle.

Recalls NHTSA · verified

Showing 1 of 1 campaigns on record for this vehicle.

17V507000Seat Belts:FrontReported 16/08/2017

BMW of North America, LLC (BMW) is recalling certain 2018 430i, 430i xDrive, 440i, 440i xDrive, and M4 convertible vehicles. The Emergency Locking Retractors (ELR) within the front seat belt assemblies may have been… Remedy: BMW will notify owners, and dealers will inspect and, if necessary replace, the front seat belt assemblies, free of charge. The recall began October 13, 2017. Owners may contact…

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 430i. 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.

Group 94R battery Engine oil filter 11425B3A1A5 Engine air filter 13718632502 Spark plug 12120040551 Battery 61216806755

Reference guides

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

Vehicle recalls & TSBs OBD-II trouble codes Torque specifications Maintenance schedules Fluid capacities & specs

Frequently asked

Does the 2018 430i have open recalls?

NHTSA lists 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the 430i get?

EPA figures are 24 city / 34 highway / 27 combined mpg.