BMW 430i 2017-present

BMW 430i 2017-present Drivetrain Specifications

Detailed technical specifications and service information for the drivetrain system of the 2017-Present BMW 430I. Includes engine, transmission, differential, and driveshaft details for maintenance and repair.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the drivetrain specifications for the 2017-Present BMW 430I, including key features, measurements, and technical details

How to Use

Use the search function to locate specific drivetrain components or specifications by entering keywords such as 'transmission type', 'drive configuration', or 'torque output'.

Navigate through the drivetrain documentation by selecting the relevant section from the table of contents or using the sidebar menu to jump to specific subsections.

Key Specifications

Engine Type

2.0L TwinPower Turbo inline-4

Horsepower

248 hp @ 5,200-6,500 rpm

Torque

258 lb-ft @ 1,450-4,800 rpm

Transmission

8-speed Steptronic automatic

0-60 mph

5.5 seconds (RWD)

Available Specifications

Engine and Transmission

Details about the engine and transmission configuration, including specifications and performance metrics

Engine Specifications

2.0L TwinPower Turbo inline-4 engine
248 horsepower at 5,200-6,500 rpm
258 lb-ft of torque at 1,450-4,800 rpm
Direct fuel injection system
Valvetronic variable valve timing

Transmission Details

8-speed Steptronic automatic transmission
Rear-wheel drive (RWD) or xDrive all-wheel drive (AWD) options
Adaptive shift logic for optimized performance
Manual shift mode with paddle shifters
Gear ratios: 1st (4.71), 2nd (3.14), 3rd (2.11), 4th (1.67), 5th (1.29), 6th (1.00), 7th (0.84), 8th (0.67)

Note: The xDrive system provides enhanced traction and stability in various driving conditions.

Drive Configuration

Information about the drivetrain layout and drive configuration options

Rear-Wheel Drive (RWD)

Standard drivetrain configuration
50:50 weight distribution for balanced handling
Mechanical limited-slip differential (optional)
Enhanced agility and steering precision
Fuel efficiency: 24 mpg city / 34 mpg highway

xDrive All-Wheel Drive (AWD)

Optional drivetrain configuration
Dynamic torque distribution between front and rear axles
Improved traction in adverse weather conditions
Fuel efficiency: 23 mpg city / 32 mpg highway
Integrated with Dynamic Stability Control (DSC)

Note: The xDrive system can transfer up to 100% of torque to the rear wheels under normal driving conditions.

Differential and Axles

Technical details about the differential and axle components

Differential Specifications

Open differential (standard)
Optional M Sport differential with locking function
Locking ratio: up to 100%
Electronically controlled for dynamic performance
Integrated with DSC for stability control

Axle Details

Front axle: Double-joint spring strut type
Rear axle: Five-link suspension
Axle ratio: 3.23 (RWD) / 3.46 (xDrive)
Lightweight aluminum construction
Optimized for reduced unsprung weight

Note: The five-link rear axle enhances ride comfort and handling precision.

Performance and Efficiency

Performance metrics and efficiency data for the drivetrain

Acceleration and Top Speed

0-60 mph in 5.5 seconds (RWD)
0-60 mph in 5.3 seconds (xDrive)
Top speed: 130 mph (electronically limited)
Optional M Sport package increases top speed to 155 mph
Launch Control available with Sport Automatic Transmission

Fuel Efficiency

RWD: 24 mpg city / 34 mpg highway
xDrive: 23 mpg city / 32 mpg highway
CO2 emissions: 200 g/km (RWD) / 210 g/km (xDrive)
Auto Start-Stop function for improved efficiency
Eco Pro mode for optimized fuel consumption

Note: Fuel efficiency may vary based on driving conditions and vehicle configuration.

Search Specifications

Search by specification name, value, or description

Component Specifications

Engine

Type: B48B20 2.0L Turbocharged Inline-4

Displacement: 1998 cc

Compression Ratio: 10.2:1

Max Power: 248 hp @ 5200-6500 rpm

Max Torque: 258 lb-ft @ 1450-4800 rpm

Fuel System: Direct Injection

Part Number: 11 00 8 602 123

Transmission

Type: 8-Speed Automatic (ZF 8HP)

Gear Ratios: 1st: 4.714:1
2nd: 3.143:1
3rd: 2.106:1
4th: 1.667:1
5th: 1.285:1
6th: 1.000:1
7th: 0.839:1
8th: 0.667:1
Reverse: 3.317:1

Part Number: 24 00 8 602 456

Driveshaft

Material: Carbon Fiber Reinforced Polymer

Length: 72.8 inches

Diameter: 3.15 inches

Part Number: 26 11 8 602 789

Differential

Type: Electronic Limited-Slip Differential

Gear Ratio: 3.15:1

Oil Capacity: 1.5 liters

Oil Type: BMW SAF-XJ 75W-140

Part Number: 33 10 8 602 345

Axles

Front Axle: Type: Independent MacPherson Strut
Track Width: 62.2 inches
Part Number: 31 20 8 602 678

Rear Axle: Type: Independent Multi-Link
Track Width: 63.0 inches
Part Number: 33 30 8 602 901

Transfer Case

Type: Not Applicable (RWD Configuration)

Note: The 430i does not feature a transfer case as it is rear-wheel drive.

Clutch

Type: Not Applicable (Automatic Transmission)

Note: The 430i uses an automatic transmission and does not have a traditional clutch.

Propeller Shaft

Material: Steel

Length: 56.3 inches

Diameter: 2.76 inches

Part Number: 26 12 8 602 234

Wheel Hub Assemblies

Front: Type: Sealed Bearing Hub
Bolt Pattern: 5x120 mm
Part Number: 31 22 8 602 567

Rear: Type: Sealed Bearing Hub
Bolt Pattern: 5x120 mm
Part Number: 33 21 8 602 890

Drivetrain Control System

System: Dynamic Stability Control (DSC)

Features

Traction Control
Electronic Differential Lock (EDL)
Brake Assist

Part Number: 34 50 8 602 123

Service Information Service

Detailed service requirements and schedules for the 2017-Present BMW 430i drivetrain.

10,000

Engine oil and filter change
Inspect drivetrain components for wear
Check transmission fluid level

Use only BMW-approved fluids and parts.

30,000

Replace differential fluid
Inspect driveshaft and propeller shaft for damage
Check wheel hub assemblies for play

Ensure all bolts are torqued to manufacturer specifications.

60,000

Replace transmission fluid
Inspect and replace worn axle boots
Check and adjust drivetrain alignment

Perform a full diagnostic scan of the drivetrain control system.

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of drivetrain does the 2017-Present BMW 430i use?

The 2017-Present BMW 430i is equipped with a rear-wheel-drive (RWD) system as standard, with an optional xDrive all-wheel-drive (AWD) system. The xDrive system dynamically distributes torque between the front and rear axles for improved traction and stability.

What is the transmission type in the BMW 430i?

The BMW 430i comes with an 8-speed Steptronic automatic transmission as standard. This transmission features adaptive shift dynamics and is designed for smooth and efficient power delivery.

What is the torque output of the BMW 430i drivetrain?

The BMW 430i's 2.0-liter TwinPower Turbo inline-4 engine produces 258 horsepower and 295 lb-ft of torque. This torque is delivered to the wheels via the 8-speed automatic transmission.

Can the BMW 430i drivetrain handle off-road conditions?

While the BMW 430i is primarily designed for on-road performance, the optional xDrive AWD system provides enhanced traction in adverse weather conditions. However, it is not intended for serious off-road use due to its low ground clearance and sport-oriented suspension.

What is the recommended service interval for the drivetrain components?

BMW recommends inspecting the drivetrain components, including the transmission, differential, and driveshaft, every 30,000 miles or as specified in the vehicle's service schedule. Regular maintenance ensures optimal performance and longevity.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

BMW 430i Drivetrain Technical Manual

Coming Soon

Official technical documentation detailing the drivetrain components, specifications, and maintenance procedures for the BMW 430i.

xDrive All-Wheel-Drive System Overview

Coming Soon

A comprehensive guide to the xDrive AWD system, including its operation, benefits, and maintenance tips.

8-Speed Steptronic Transmission Service Guide

Coming Soon

Step-by-step instructions for servicing and maintaining the 8-speed Steptronic automatic transmission.

BMW Genuine Parts Catalog

Coming Soon

Access the official catalog of genuine BMW parts for the 430i drivetrain, ensuring compatibility and performance.

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