BMW 335i 2012-2018 Suspension Specifications
Comprehensive technical guide detailing the suspension system specifications for the BMW 335I models from 2012 to 2018. Includes front and rear suspension components, torque values, alignment data, and maintenance tips.
Overview Specifications
Comprehensive description of the suspension specifications for the 2012-2018 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 bar to locate specific suspension components or specifications by entering keywords such as 'front strut', 'rear shock absorber', or 'alignment settings'.
Navigate through the suspension documentation using the table of contents. Each major section is divided into subsections for detailed technical information.
Key Specifications
Front Spring Rate
28 N/mm
Rear Shock Absorber Stroke
120 mm
Front Camber Angle
-0.5° to -1.0°
Rear Toe Angle
0.15° to 0.25° (toe-in)
Strut Diameter
50 mm
Available Specifications
Front Suspension System
Details of the front suspension system, including strut assembly, control arms, and steering components.
Front Suspension System
Details of the front suspension system, including strut assembly, control arms, and steering components.
Strut Assembly
- MacPherson strut design with coil spring integration
- Strut diameter: 50 mm
- Spring rate: 28 N/mm
- Bump stop length: 60 mm
- Strut mount bearing type: Ball-and-socket
Control Arms and Bushings
- Upper control arm material: Forged aluminum
- Lower control arm material: Cast iron
- Bushing material: Hydro rubber with fluid-filled chambers
- Control arm length: 320 mm
- Bushing durometer: 70 Shore A
Note: Regular inspection of bushings is recommended to prevent premature wear.
Rear Suspension System
Technical details of the rear suspension, including multi-link setup, shock absorbers, and trailing arms.
Rear Suspension System
Technical details of the rear suspension, including multi-link setup, shock absorbers, and trailing arms.
Multi-Link Setup
- Five-link independent rear suspension
- Trailing arm length: 450 mm
- Upper link material: Forged steel
- Lower link material: Cast aluminum
- Bushing type: Solid rubber
Shock Absorbers
- Twin-tube gas-charged shock absorbers
- Shock absorber stroke: 120 mm
- Damping force: 1,500 N at 0.3 m/s
- Mounting type: Eyelet and pin
- Reservoir capacity: 200 ml
Note: Shock absorbers are serviceable and should be checked every 30,000 miles.
Alignment Specifications
Alignment settings for the 2012-2018 BMW 335i, including camber, caster, and toe angles.
Alignment Specifications
Alignment settings for the 2012-2018 BMW 335i, including camber, caster, and toe angles.
Front Alignment
- Camber angle: -0.5° to -1.0°
- Caster angle: 7.0° to 7.5°
- Toe angle: 0.10° to 0.20° (toe-in)
- Steering axis inclination: 12.5°
- Maximum allowable deviation: ±0.3°
Rear Alignment
- Camber angle: -1.5° to -2.0°
- Toe angle: 0.15° to 0.25° (toe-in)
- Thrust angle: 0.0° ± 0.1°
- Maximum allowable deviation: ±0.2°
Note: Alignment should be checked after any suspension component replacement.
Suspension Components and Torque Specifications
Torque values and specifications for critical suspension components.
Suspension Components and Torque Specifications
Torque values and specifications for critical suspension components.
Front Suspension Torque
- Strut-to-knuckle bolts: 90 Nm + 90°
- Control arm-to-subframe bolts: 100 Nm + 45°
- Sway bar end link nuts: 50 Nm
- Steering tie rod nut: 60 Nm
Rear Suspension Torque
- Shock absorber lower bolt: 110 Nm
- Trailing arm-to-subframe bolts: 120 Nm + 90°
- Upper link-to-knuckle bolts: 85 Nm
- Lower link-to-knuckle bolts: 95 Nm
Note: Always use a torque wrench to ensure proper tightening of suspension components.
Search Specifications
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Type to search through torque specifications. Results will appear below as you type.
Component Specifications
Front Suspension
- Type
- MacPherson strut with lower control arm
- Spring Rate
- 28.5 N/mm
- Shock ABSorber Type
- Gas-filled monotube
- Strut Part Number
- 31306777734
- Control Arm Part Number
- 31126865477
- Bushing Material
- Rubber with aluminum housing
- Anti Roll Bar Diameter
- 25.5 mm
- Anti Roll Bar Part Number
- 31356795712
Rear Suspension
- Type
- Multi-link independent suspension
- Spring Rate
- 32.0 N/mm
- Shock ABSorber Type
- Gas-filled twin-tube
- Trailing Arm Part Number
- 33326770821
- Lateral Link Part Number
- 33326770822
- Anti Roll Bar Diameter
- 15.0 mm
- Anti Roll Bar Part Number
- 33556795713
Shock ABSorbers
- Front Shock Travel
- 135 mm
- Rear Shock Travel
- 150 mm
- Front Shock Rebound Damping
- 2200 Ns/m
- Rear Shock Rebound Damping
- 1800 Ns/m
- Front Shock Compression Damping
- 1200 Ns/m
- Rear Shock Compression Damping
- 1000 Ns/m
Springs
- Front Spring Free Length
- 380 mm
- Rear Spring Free Length
- 420 mm
- Front Spring Wire Diameter
- 12.5 mm
- Rear Spring Wire Diameter
- 13.0 mm
- Front Spring Coil Count
- 6.5
- Rear Spring Coil Count
- 7.0
Bushings
- Front Lower Control Arm Bushing Durometer
- 70 Shore A
- Rear Trailing Arm Bushing Durometer
- 65 Shore A
- Front Anti Roll Bar Bushing Durometer
- 75 Shore A
- Rear Anti Roll Bar Bushing Durometer
- 70 Shore A
- Bushing Replacement Interval
- 100,000 miles
Alignment Specifications
- Front Camber
- -0.5° to +0.5°
- Rear Camber
- -1.5° to -0.5°
- Front Toe
- 0.10° to 0.20°
- Rear Toe
- 0.15° to 0.25°
- Front Caster
- 6.5° to 7.5°
- Thrust Angle
- 0.0° ± 0.1°
Torque Specifications
- Front Strut Mount Nut
- 65 Nm
- Rear Shock ABSorber Mount Nut
- 50 Nm
- Front Lower Control Arm Bolt
- 90 Nm
- Rear Trailing Arm Bolt
- 110 Nm
- Anti Roll Bar Link Nut
- 45 Nm
Operational Limits
- Maximum Front Axle Load
- 1050 kg
- Maximum Rear Axle Load
- 1100 kg
- Maximum Suspension Travel Front
- 150 mm
- Maximum Suspension Travel Rear
- 160 mm
- Maximum Speed For Suspension integrity
- 250 km/h
Diagnostic Specifications
- Shock ABSorber Leak Test
- No visible fluid leakage
- Bushing Inspection Criteria
- No cracks or excessive wear
- Spring Inspection Criteria
- No sagging or deformation
- Anti Roll Bar Link Inspection
- No play or looseness
- Alignment Check interval
- Every 15,000 miles or after impact
Maintenance Specifications
- Shock ABSorber Replacement interval
- 60,000 miles
- Spring Replacement Interval
- 100,000 miles
- Bushing Replacement Interval
- 100,000 miles
- Anti Roll Bar Link Replacement Interval
- 80,000 miles
- Suspension Lubrication Points
-
- Front lower control arm bushings
- Rear trailing arm bushings
- Anti-roll bar bushings
- Lubrication interval
- Every 30,000 miles
Service Information Service
Detailed service requirements and schedules for the suspension system
- Inspect shock absorbers for leaks
- Check suspension bushings for wear
- Verify alignment settings
Perform after any significant impact or suspension work
- Lubricate suspension bushings
- Inspect anti-roll bar links
- Check spring condition
Ensure all fasteners are torqued to specification
- Replace shock absorbers
- Inspect and replace worn bushings
- Check suspension alignment
Replace components as necessary to maintain ride quality
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the recommended torque specification for the front strut mount bolts on a 2012-2018 BMW 335i?
What is the recommended torque specification for the front strut mount bolts on a 2012-2018 BMW 335i?
The recommended torque specification for the front strut mount bolts is 22 Nm (16 lb-ft) for the three upper strut mount nuts and 100 Nm (74 lb-ft) for the central strut mount nut. Ensure proper alignment during installation to avoid suspension noise or premature wear.
Q2 What is the ride height specification for the 2012-2018 BMW 335i with standard suspension?
What is the ride height specification for the 2012-2018 BMW 335i with standard suspension?
The ride height for the 2012-2018 BMW 335i with standard suspension is approximately 600 mm (23.6 inches) from the ground to the wheel arch at the front and 590 mm (23.2 inches) at the rear. Variations may occur depending on trim level and optional suspension packages.
Q3 How do I identify if my BMW 335i has the optional Adaptive M Suspension?
How do I identify if my BMW 335i has the optional Adaptive M Suspension?
The Adaptive M Suspension can be identified by the presence of the 'Adaptive M Suspension' badge in the vehicle's documentation or by checking the VIN decoder. Additionally, vehicles equipped with this system will have adjustable damping settings accessible via the driving mode selector (Comfort, Sport, Sport+).
Q4 What is the recommended replacement interval for the rear shock absorbers on a 2012-2018 BMW 335i?
What is the recommended replacement interval for the rear shock absorbers on a 2012-2018 BMW 335i?
BMW does not specify a fixed replacement interval for rear shock absorbers. However, they should be inspected every 30,000 miles (48,000 km) or during routine maintenance. Signs of wear, such as fluid leaks, excessive bouncing, or uneven tire wear, indicate the need for replacement.
Q5 Can I replace the standard suspension with aftermarket lowering springs on my BMW 335i?
Can I replace the standard suspension with aftermarket lowering springs on my BMW 335i?
Yes, aftermarket lowering springs can be installed, but this may affect ride quality, handling, and warranty coverage. Lowering the suspension by more than 30 mm (1.2 inches) may also require recalibration of the Electronic Damper Control (EDC) system if equipped. Always use high-quality components and consult a professional for installation.
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 335i Suspension System Overview
Coming SoonA detailed guide covering the standard and optional suspension systems available for the 2012-2018 BMW 335i, including technical specifications and maintenance tips.
Adaptive M Suspension Troubleshooting Guide
Coming SoonStep-by-step instructions for diagnosing and resolving common issues with the Adaptive M Suspension system, including error codes and recalibration procedures.
BMW Genuine Suspension Parts Catalog
Coming SoonAccess the official BMW parts catalog for genuine suspension components, including part numbers, pricing, and compatibility information.
Suspension Alignment and Adjustment Guide
Coming SoonComprehensive instructions for performing wheel alignment and suspension adjustments on the 2012-2018 BMW 335i, including recommended settings and tools.
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Technical Information
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