BMW 750i 2008-2015

BMW 750i 2008-2015 Suspension Specifications

Detailed technical documentation for the suspension system of the 2008-2015 BMW 750i, including front and rear suspension components, alignment settings, torque specifications, and maintenance procedures. Ideal for technicians and enthusiasts.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the suspension specifications for the 2008-2015 BMW 750i, including key features, measurements, and technical details. This section covers the front and rear suspension systems, adaptive air suspension, and dynamic damping control.

How to Use

Use the search function to locate specific suspension components or specifications by entering keywords such as 'front strut', 'rear axle', or 'adaptive air suspension'.

Navigate through the suspension documentation by selecting the relevant section from the table of contents. Each section is organized into subsections for detailed technical information.

Key Specifications

Front Spring Rate

28 N/mm

Rear Air Spring Pressure

6-16 bar

Ride Height Adjustment

+/- 20 mm

Damping Response Time

10 ms

Track Width (Rear)

1620 mm

Available Specifications

Front Suspension

Detailed information about the front suspension system, including strut assembly, control arms, and steering components.

Strut Assembly

MacPherson strut design with integrated coil spring
Strut diameter: 55 mm
Spring rate: 28 N/mm
Includes adaptive damping system with electronic control

Control Arms

Upper and lower control arms made of forged aluminum
Bushing material: rubber with hydraulic damping
Control arm length: 320 mm (upper), 450 mm (lower)
Ball joint type: maintenance-free, sealed

Note: Control arms are designed for reduced unsprung weight and improved handling.

Rear Suspension

Technical details of the rear suspension system, including multi-link design, air springs, and damping components.

Multi-Link Design

Five-link independent rear suspension
Link material: high-strength steel and aluminum
Wheel carrier: aluminum for weight reduction
Toe and camber adjustments via eccentric bolts

Air Springs

Adaptive air suspension with automatic leveling
Air spring pressure range: 6-16 bar
Ride height adjustment range: +/- 20 mm
Integrated sensors for load and ride height monitoring

Note: Air springs provide a balance between comfort and sporty handling.

Dynamic Damping Control

Overview of the dynamic damping control system, including its components and functionality.

Damping System

Electronically controlled shock absorbers
Adjustable damping force in three modes: Comfort, Normal, Sport
Response time: 10 ms for damping adjustments
Integrated with BMW Drive Dynamic Control system

Sensors and Actuators

Wheel acceleration sensors for real-time feedback
Steering angle sensor for predictive damping adjustments
Actuators integrated into each shock absorber
Communication via CAN bus system

Note: The system adapts to road conditions and driving style for optimal performance.

Suspension Geometry

Specifications for suspension alignment and geometry settings.

Front Alignment

Camber angle: -0.5° to -1.0°
Toe-in: 0.10° to 0.20°
Caster angle: 7.5°
Kingpin inclination: 12.5°

Rear Alignment

Camber angle: -1.5° to -2.0°
Toe-in: 0.15° to 0.25°
Thrust angle: 0°
Track width: 1620 mm

Note: Alignment settings are optimized for stability and tire wear.

Search Specifications

Search by specification name, value, or description

Component Specifications

Front Suspension

Type: Double wishbone with air springs

Spring Rate: 28 N/mm

Shock ABSorber Type: Adaptive air suspension

Stabilizer Bar Diameter: 28 mm

Bushings Material: Synthetic rubber with aluminum housing

Part Numbers: Air Spring: 37116783761
Shock ABSorber: 37116783762
Stabilizer Bar Link: 31356783763

Rear Suspension

Type: Multi-link with air springs

Spring Rate: 32 N/mm

Shock ABSorber Type: Adaptive air suspension

Stabilizer Bar Diameter: 24 mm

Bushings Material: Synthetic rubber with aluminum housing

Part Numbers: Air Spring: 37116783764
Shock ABSorber: 37116783765
Stabilizer Bar Link: 31356783766

Air Suspension System

Compressor Type: Single-piston

Compressor Power: 400 W

Air Tank Capacity: 7 liters

Pressure Range: 8-16 bar

Part Numbers: Compressor: 37116783767
Air Tank: 37116783768
Pressure Sensor: 37116783769

Adaptive Damping System

Damping Modes

Comfort
Sport
Sport+

Response Time: 20 ms

Sensor Types

Acceleration
Position
Pressure

Part Numbers: Control Unit: 37116783770
Sensor Set: 37116783771

Wheel Alignment

Front Camber: -0.5° to -1.0°

Front Toe: 0.10° to 0.20°

Rear Camber: -1.5° to -2.0°

Rear Toe: 0.15° to 0.25°

Caster: 7.0° to 7.5°

Torque Specifications

Front Strut Mount Nuts: 70 Nm

Rear Shock ABSorber Bolts: 90 Nm

Stabilizer Bar Link Nuts: 45 Nm

Control Arm Bolts: 120 Nm

Wheel Bolts: 140 Nm

Operational Limits

Maximum Load Front: 1200 kg

Maximum Load Rear: 1300 kg

Maximum Speed With Air Suspension: 250 km/h

Minimum Ground Clearance: 120 mm

Maximum Ground Clearance: 160 mm

Diagnostic Specifications

Fault Codes: Air Suspension: 48A0, 48A1, 48A2
Adaptive Damping: 48B0, 48B1, 48B2

Diagnostic Tools

BMW ISTA
INPA

Sensor Tolerances: Pressure Sensor: ±0.1 bar
Position Sensor: ±1 mm

Maintenance Specifications

Air Spring Inspection Interval: Every 30,000 miles or 24 months

Shock ABSorber Replacement interval: Every 60,000 miles or 48 months

Bushing Inspection Interval: Every 50,000 miles or 36 months

Alignment Check interval: Every 15,000 miles or 12 months

Compressor Filter Replacement interval: Every 40,000 miles or 36 months

Safety information

Warning: Do not operate the vehicle with a damaged air suspension system

Precautions

Always depressurize the air suspension system before servicing
Use proper lifting points to avoid damage to suspension components
Ensure all bolts are torqued to specification after service

Service Information Service

Detailed service requirements and schedules for the suspension system

15,000

Inspect air springs for leaks
Check shock absorber performance
Verify wheel alignment settings

Alignment should be checked after any suspension component replacement

30,000

Replace air compressor filter
Inspect suspension bushings for wear
Check adaptive damping system functionality

Use BMW-approved diagnostic tools for system checks

60,000

Replace shock absorbers
Inspect and replace worn suspension components
Perform full system diagnostic

Ensure all replacement parts meet BMW specifications

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of suspension system does the 2008-2015 BMW 750i use?

The 2008-2015 BMW 750i is equipped with a double-wishbone front suspension and a multi-link rear suspension. It also features an optional Adaptive Drive system, which includes Dynamic Damping Control (DDC) and Active Roll Stabilization (ARS) for enhanced handling and comfort.

What is the recommended tire pressure for the BMW 750i suspension system?

The recommended tire pressure for the BMW 750i is typically 32 psi (220 kPa) for the front tires and 35 psi (240 kPa) for the rear tires. However, this may vary depending on load conditions and driving style. Always refer to the tire pressure label on the driver's door jamb for specific recommendations.

How often should the suspension components be inspected?

BMW recommends inspecting the suspension components every 30,000 miles or during routine maintenance intervals. Key components to check include the shock absorbers, struts, control arms, bushings, and ball joints for wear and damage.

What is the ride height of the BMW 750i?

The ride height of the 2008-2015 BMW 750i is approximately 5.9 inches (150 mm) at the front and 5.7 inches (145 mm) at the rear. This measurement may vary slightly depending on the suspension configuration and optional equipment.

Can the suspension be adjusted for different driving conditions?

Yes, the optional Adaptive Drive system allows the suspension to be adjusted for different driving conditions. The Dynamic Damping Control (DDC) system automatically adjusts the shock absorber settings based on road conditions and driving style, while the driver can select between Comfort, Normal, and Sport modes.

What are the signs of a failing suspension component?

Common signs of failing suspension components include uneven tire wear, excessive bouncing or swaying, knocking noises over bumps, a rough ride, and the vehicle leaning to one side. If any of these symptoms are observed, the suspension should be inspected immediately.

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 750i Suspension System Overview

Coming Soon

A detailed guide to the suspension system of the 2008-2015 BMW 750i, including component descriptions and maintenance tips.

Adaptive Drive System Technical Manual

Coming Soon

Technical documentation for the Adaptive Drive system, including Dynamic Damping Control and Active Roll Stabilization.

Suspension Inspection and Maintenance Checklist

Coming Soon

A comprehensive checklist for inspecting and maintaining the suspension components of the BMW 750i.

Genuine BMW Suspension Parts Catalog

Coming Soon

A catalog of genuine BMW suspension parts for the 2008-2015 750i, ensuring proper fit and performance.

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