BMW X4 2014-2018

BMW X4 2014-2018 Suspension Specifications

Detailed technical specifications and maintenance guidelines for the 2014-2018 BMW X4 suspension system. Includes front and rear suspension components, alignment settings, torque specs, and adaptive suspension details.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the suspension specifications for the 2014-2018 BMW X4, including key features, measurements, and technical details. This section covers the front and rear suspension systems, alignment specifications, and critical components.

How to Use

Use the search function to locate specific suspension specifications by entering keywords such as 'front suspension', 'rear suspension', or 'alignment angles'.

Navigate through the suspension documentation sections using the table of contents or by scrolling through the major sections and subsections.

Key Specifications

Front Spring Rate

28.5 N/mm

Rear Spring Rate

32.0 N/mm

Front Anti-Roll Bar Diameter

24 mm

Rear Anti-Roll Bar Diameter

18 mm

Turning Circle

12.2 m

Available Specifications

Front Suspension

Details of the front suspension system, including components, measurements, and technical specifications.

MacPherson Strut Design

Strut type: MacPherson with coil spring
Spring rate: 28.5 N/mm
Strut diameter: 50 mm
Lower control arm material: Aluminum alloy
Anti-roll bar diameter: 24 mm

Steering and Alignment

Steering type: Rack-and-pinion with electric power assist
Caster angle: 7.2° ± 0.5°
Camber angle: -0.5° ± 0.3°
Toe-in: 0.12° ± 0.05°
Turning circle: 12.2 m

Note: Alignment specifications are for standard tire size 245/50 R18.

Rear Suspension

Technical details of the rear suspension system, including multi-link design and component specifications.

Multi-Link Suspension

Suspension type: Five-link independent
Spring rate: 32.0 N/mm
Shock absorber type: Twin-tube gas-filled
Anti-roll bar diameter: 18 mm
Wheel carrier material: Cast aluminum

Alignment Specifications

Camber angle: -1.2° ± 0.3°
Toe-in: 0.15° ± 0.05°
Track width: 1610 mm
Ride height: 160 mm (measured from wheel center to fender)

Note: Ride height may vary based on optional suspension packages.

Suspension Components

Detailed information on key suspension components, including materials, dimensions, and performance characteristics.

Shock Absorbers

Front shock absorber stroke: 140 mm
Rear shock absorber stroke: 120 mm
Damping force (front): 2200 N at 0.3 m/s
Damping force (rear): 1800 N at 0.3 m/s
Material: High-strength steel with corrosion-resistant coating

Anti-Roll Bars

Front anti-roll bar diameter: 24 mm
Rear anti-roll bar diameter: 18 mm
Material: Hollow steel with polyurethane bushings
Torsional stiffness (front): 12,500 Nm/rad
Torsional stiffness (rear): 9,800 Nm/rad

Optional Suspension Packages

Information on optional suspension systems available for the 2014-2018 BMW X4, including adaptive and performance packages.

Adaptive M Suspension

Adjustable damping: Electronically controlled
Damping modes: Comfort, Sport, Sport+
Spring rate variation: ±15%
Ride height adjustment: None
Compatibility: Integrated with Dynamic Driving Control

M Performance Suspension

Lowered ride height: 20 mm
Spring rate increase: 20%
Anti-roll bar diameter increase: 2 mm (front and rear)
Shock absorber tuning: Sport-oriented
Compatibility: Requires 19-inch or larger wheels

Note: M Performance Suspension is not compatible with xDrive models.

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Component Specifications

Front Suspension

Type: MacPherson Strut

Spring Type: Coil Spring

Spring Rate: 250 lb/in

Strut Part Number: BMW-X4-FS-001

Damping Force: 1500 N

Tolerance: ±5%

Rear Suspension

Type: Multi-link

Spring Type: Coil Spring

Spring Rate: 220 lb/in

Strut Part Number: BMW-X4-RS-001

Damping Force: 1200 N

Tolerance: ±5%

Shock ABSorbers

Front Shock Part Number: BMW-X4-FSA-001

Rear Shock Part Number: BMW-X4-RSA-001

Front Shock Travel: 200 mm

Rear Shock Travel: 180 mm

Rebound Rate: 0.5 sec

Tolerance: ±3%

Wheel Alignment

Front Camber: -1.5°

Rear Camber: -1.0°

Front Toe: 0.2°

Rear Toe: 0.1°

Alignment Tolerance: ±0.5°

Suspension Bushings

Front Bushing Part Number: BMW-X4-FB-001

Rear Bushing Part Number: BMW-X4-RB-001

Material: Polyurethane

Durability: 100,000 miles

Tolerance: ±2%

Suspension Links

Front Link Part Number: BMW-X4-FL-001

Rear Link Part Number: BMW-X4-RL-001

Material: Steel

Length: 300 mm

Tolerance: ±1%

Operational Limits

Max Load Front: 1000 kg

Max Load Rear: 800 kg

Max Speed: 200 km/h

Temperature Range: -20°C to 100°C

Maintenance Intervals

inspection Interval: Every 12 months or 10,000 miles

Lubrication interval: Every 6 months or 5,000 miles

Bushing Replacement: Every 100,000 miles

Diagnostic Specifications

Shock ABSorber Test: Rebound time < 0.5 sec

Alignment Check: Camber within ±1.5°, Toe within ±0.2°

Bushing Wear: No visible cracks or deformation

Safety information

Max Load Warning: Do not exceed max load limits

Speed Warning: Do not exceed max speed limits

Temperature Warning: Avoid extreme temperature conditions

Service Information Service

Detailed service requirements and schedules

10,000 miles

12 months

Inspect suspension components
Check alignment
Lubricate bushings

Ensure all components are within tolerance limits

5,000 miles

6 months

Lubricate suspension links
Check shock absorbers
Inspect bushings

Regular lubrication prevents premature wear

100,000 miles

120 months

Replace bushings
Inspect and replace shock absorbers if necessary
Check alignment

Replace worn components to maintain performance

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of suspension system does the 2014-2018 BMW X4 use?

The 2014-2018 BMW X4 is equipped with a double-joint spring-strut front axle and a multi-link rear axle. This setup provides a balance of sporty handling and comfort, with specific tuning for the X4's dynamic driving characteristics.

What is the ground clearance of the 2014-2018 BMW X4?

The ground clearance of the 2014-2018 BMW X4 is approximately 204 mm (8.03 inches). This measurement ensures adequate clearance for urban and light off-road driving while maintaining a low center of gravity for improved handling.

Can the suspension be adjusted or upgraded on the BMW X4?

Yes, the BMW X4 offers optional Adaptive M Suspension, which includes electronically controlled dampers that adjust to driving conditions. Additionally, aftermarket upgrades such as lowering springs or coilovers are available, but these may void the factory warranty and should be installed by a professional.

What is the recommended tire pressure for the BMW X4?

The recommended tire pressure for the 2014-2018 BMW X4 varies by trim and tire size. For example, models with 19-inch tires typically require 32 psi (2.2 bar) in the front and 35 psi (2.4 bar) in the rear. Always refer to the tire pressure label on the driver's side door jamb for exact specifications.

How often should the suspension components be inspected?

BMW recommends inspecting the suspension components every 30,000 miles or during routine maintenance. Key components such as bushings, ball joints, and shock absorbers should be checked for wear and replaced if necessary to maintain optimal performance and safety.

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 X4 Suspension System Overview

Coming Soon

A detailed guide to the suspension system of the 2014-2018 BMW X4, including technical specifications and maintenance tips.

Adaptive M Suspension Setup Guide

Coming Soon

Learn how to configure and optimize the optional Adaptive M Suspension for improved handling and comfort.

BMW X4 Suspension Maintenance Checklist

Coming Soon

A comprehensive checklist for inspecting and maintaining the suspension system to ensure longevity and performance.

Genuine BMW Suspension Parts Catalog

Coming Soon

Access the official catalog of genuine BMW suspension components for the 2014-2018 X4.

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