BMW 335i 2005-2011 Suspension Specifications
Comprehensive technical specifications for the 2005-2011 BMW 335i suspension system, including front and rear suspension components, alignment settings, and torque values. Ideal for technicians and enthusiasts.
Overview Specifications
Comprehensive description of the suspension specifications for the 2005-2011 BMW 335I, including key features, measurements, and technical details. This section covers front and rear suspension systems, alignment specifications, and component-specific details.
How to Use
Use the search function to locate specific suspension components or specifications by entering keywords such as 'front strut', 'rear spring rate', or 'alignment angles'.
Navigate through the suspension documentation by selecting the relevant section from the table of contents. Each section is organized by major suspension components and subsystems.
Key Specifications
Front Spring Rate
28 N/mm
Rear Spring Rate
32 N/mm
Front Camber
-0.5° to -1.0°
Rear Camber
-1.5° to -2.0°
Strut Diameter
50 mm
Available Specifications
Front Suspension
Details of the front suspension system, including strut assembly, control arms, and steering components.
Front Suspension
Details of the front suspension system, including strut assembly, control arms, and steering components.
Strut Assembly
- MacPherson strut design with integrated coil spring
- Strut diameter: 50 mm
- Spring rate: 28 N/mm
- Bump stop length: 60 mm
- Strut mount bearing type: Angular contact ball bearing
Control Arms
- Upper control arm material: Forged aluminum
- Lower control arm material: Cast iron
- Bushings: Hydraulic rubber bushings
- Ball joint type: Sealed, maintenance-free
- Control arm length: 320 mm
Note: Ensure proper torque specifications when replacing control arm bolts to avoid premature wear.
Rear Suspension
Details of the rear suspension system, including multi-link setup, springs, and dampers.
Rear Suspension
Details of the rear suspension system, including multi-link setup, springs, and dampers.
Multi-Link Setup
- Five-link independent rear suspension
- Upper and lower control arms: Forged steel
- Trailing arm length: 450 mm
- Bushings: Polyurethane with rubber inserts
- Toe link adjustability: ±2 degrees
Springs and Dampers
- Spring rate: 32 N/mm
- Damper type: Twin-tube gas-charged
- Damper stroke: 120 mm
- Bump stop length: 55 mm
- Ride height adjustment: Not factory-adjustable
Note: Aftermarket lowering springs may affect ride quality and warranty coverage.
Alignment Specifications
Factory-recommended alignment settings for optimal handling and tire wear.
Alignment Specifications
Factory-recommended alignment settings for optimal handling and tire wear.
Front Alignment
- Camber: -0.5° to -1.0°
- Toe: 0.10° to 0.20° (toe-in)
- Caster: 7.0° to 7.5°
- Steering axis inclination: 12.5°
- Maximum thrust angle: 0.2°
Rear Alignment
- Camber: -1.5° to -2.0°
- Toe: 0.15° to 0.25° (toe-in)
- Thrust angle: 0.0°
- Track width: 1540 mm
- Ride height tolerance: ±5 mm
Note: Alignment should be checked after any suspension component replacement.
Suspension Components
Technical details of key suspension components, including bushings, mounts, and fasteners.
Suspension Components
Technical details of key suspension components, including bushings, mounts, and fasteners.
Bushings and Mounts
- Front strut mount material: Reinforced rubber
- Rear subframe bushings: Fluid-filled rubber
- Bushing durometer: 70 Shore A
- Mount bolt torque: 50 Nm + 90°
- Bushing replacement interval: 100,000 miles
Fasteners and Torque Specifications
- Strut-to-knuckle bolt torque: 100 Nm + 90°
- Control arm bolt torque: 80 Nm + 45°
- Wheel hub nut torque: 120 Nm
- Subframe bolt torque: 110 Nm + 90°
- Alignment bolt torque: 25 Nm
Note: Always use new bolts for critical suspension components to ensure proper clamping force.
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Component Specifications
Front Suspension
- Type
- MacPherson strut
- Spring Rate
- 25 N/mm
- Strut Part Number
- 31306777703
- Lower Control Arm Part Number
- 31126769717
- Bushing Material
- Rubber with aluminum housing
- Track Width
- 1520 mm
- Camber Range
- -0.5° to +0.5°
- Toe in
- 0.10° ± 0.05°
Rear Suspension
- Type
- Multi-link independent
- Spring Rate
- 28 N/mm
- Trailing Arm Part Number
- 33326770823
- Subframe Mount Part Number
- 33326851123
- Bushing Material
- Polyurethane
- Track Width
- 1535 mm
- Camber Range
- -1.5° to -0.5°
- Toe in
- 0.15° ± 0.05°
Shock ABSorbers
- Front Shock Part Number
- 31306777703
- Rear Shock Part Number
- 33526777704
- Front Shock Travel
- 120 mm
- Rear Shock Travel
- 110 mm
- Damping Force Front
- 1500 N at 0.3 m/s
- Damping Force Rear
- 1400 N at 0.3 m/s
Springs
- Front Spring Part Number
- 31331094707
- Rear Spring Part Number
- 33531094708
- Front Spring Free Length
- 380 mm
- Rear Spring Free Length
- 400 mm
- Front Spring Wire Diameter
- 12.5 mm
- Rear Spring Wire Diameter
- 13.0 mm
Anti Roll Bars
- Front Anti Roll Bar Diameter
- 25 mm
- Rear Anti Roll Bar Diameter
- 15 mm
- Front Anti Roll Bar Part Number
- 31352227247
- Rear Anti Roll Bar Part Number
- 33552227248
- Bushing Material
- Polyurethane
Wheel Alignment
- Front Camber
- -0.5° ± 0.3°
- Rear Camber
- -1.5° ± 0.3°
- Front Toe
- 0.10° ± 0.05°
- Rear Toe
- 0.15° ± 0.05°
- Caster
- 7.0° ± 0.5°
- Thrust Angle
- 0.0° ± 0.1°
Bushings And Mounts
- Front Strut Mount Part Number
- 31306777703
- Rear Subframe Mount Part Number
- 33326851123
- Front Control Arm Bushing Part Number
- 31126769717
- Rear Trailing Arm Bushing Part Number
- 33326770823
- Bushing Durometer
- 70 Shore A
Torque Specifications
- Front Strut Nut
- 90 Nm
- Rear Shock ABSorber Bolt
- 110 Nm
- Front Control Arm Bolt
- 100 Nm
- Rear Subframe Bolt
- 120 Nm
- Anti Roll Bar Link Nut
- 50 Nm
Operational Limits
- Maximum Load Front
- 900 kg
- Maximum Load Rear
- 850 kg
- Maximum Speed With Load
- 250 km/h
- Minimum Ground Clearance
- 120 mm
Diagnostic Specifications
- Bounce Test Limit
- 2 cycles
- Shock ABSorber Leak Limit
- None
- Bushing Wear Limit
- 2 mm play
- Spring Sag Limit
- 10 mm
Service Information Service
Detailed service requirements and schedules for the suspension system
- Inspect shock absorbers for leaks
- Check bushings for wear
- Verify wheel alignment
- Tighten all suspension bolts to specified torque
Perform visual inspection and torque check
- Replace front and rear shock absorbers if necessary
- Inspect and replace anti-roll bar bushings if worn
- Check spring condition and sag
- Re-torque all suspension components
Replace worn components as needed
- Replace all suspension bushings
- Inspect and replace control arms if necessary
- Check subframe mounts for wear
- Perform full wheel alignment
Comprehensive suspension overhaul recommended
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of suspension system does the 2005-2011 BMW 335i use?
What type of suspension system does the 2005-2011 BMW 335i use?
The 2005-2011 BMW 335i is equipped with a double-wishbone front suspension and a multi-link rear suspension. This setup provides a balance of sporty handling and ride comfort, with specific tuning for the E90/E92/E93 chassis.
Q2 What is the recommended ride height for the BMW 335i suspension?
What is the recommended ride height for the BMW 335i suspension?
The factory ride height for the 2005-2011 BMW 335i is approximately 600mm (23.6 inches) from the ground to the wheel arch at the front and 590mm (23.2 inches) at the rear. These measurements may vary slightly depending on trim and optional suspension packages.
Q3 What are the torque specifications for the front suspension components?
What are the torque specifications for the front suspension components?
For the front suspension, the strut-to-knuckle bolts should be torqued to 81 lb-ft (110 Nm), and the control arm bolts should be torqued to 74 lb-ft (100 Nm). Always refer to the official BMW repair manual for precise specifications.
Q4 Can I install aftermarket lowering springs on the BMW 335i suspension?
Can I install aftermarket lowering springs on the BMW 335i suspension?
Yes, aftermarket lowering springs can be installed, but it is crucial to ensure compatibility with the E90/E92/E93 chassis. Lowering the suspension may affect ride quality, alignment, and warranty coverage. Always consult a professional and use high-quality components.
Q5 What is the recommended alignment specification after suspension work?
What is the recommended alignment specification after suspension work?
After suspension work, the recommended alignment settings are: Front camber -0.5° to -1.5°, front toe 0.10° to 0.20°; Rear camber -1.5° to -2.0°, rear toe 0.15° to 0.25°. These settings ensure optimal handling and tire wear.
Q6 How often should the suspension components be inspected?
How often should the suspension components be inspected?
BMW recommends inspecting the suspension components every 30,000 miles or during routine maintenance. Pay special attention to bushings, ball joints, and shock absorbers for signs of wear or damage.
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 E90/E92/E93 Suspension Repair Manual
Coming SoonOfficial BMW repair manual detailing suspension system components, service procedures, and torque specifications.
BMW Genuine Suspension Parts Catalog
Coming SoonCatalog of genuine BMW suspension parts, including control arms, bushings, and shock absorbers, for the 2005-2011 335i.
Suspension Alignment Guide for BMW 335i
Coming SoonStep-by-step guide to performing a proper wheel alignment on the BMW 335i, including recommended settings and tools.
Common Suspension Issues and Solutions
Coming SoonA troubleshooting guide addressing common suspension problems such as noise, uneven tire wear, and handling issues.
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