Mercedes-Benz Mercedes A-Class 2012-2018 Suspension Specifications
Explore the detailed suspension specifications for the 2012-2018 Mercedes A-Class, including front and rear suspension systems, spring rates, damper details, and anti-roll bar dimensions. Ideal for maintenance, repairs, and performance upgrades.
Overview Specifications
This document provides a comprehensive guide to the suspension specifications of the 2012-2018 Mercedes A-Class. It includes detailed technical information, key features, and maintenance tips for the suspension system. Use this resource to understand the design, components, and performance of the suspension. Whether you're an enthusiast, technician, or owner, this guide will help you navigate the specifics of the A-Class suspension.
How to Use
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Navigate through the document using the section titles and subsections. Each major section focuses on a specific aspect of the suspension system. Click on a section to expand and view detailed subsections. Use the table of contents for quick access to key topics.
Key Specifications
Front Suspension Type
MacPherson Strut
Rear Suspension Type
Multi-Link
Shock Absorber Type
Gas-Filled
Coil Spring Material
High-Strength Steel
Anti-Roll Bar Diameter
22 mm (Front), 18 mm (Rear)
Available Specifications
Front Suspension
The front suspension of the 2012-2018 Mercedes A-Class is designed for optimal handling and comfort. This section covers the key components, including the MacPherson strut system, control arms, and anti-roll bar. Learn about the materials used, design features, and maintenance requirements.
Front Suspension
The front suspension of the 2012-2018 Mercedes A-Class is designed for optimal handling and comfort. This section covers the key components, including the MacPherson strut system, control arms, and anti-roll bar. Learn about the materials used, design features, and maintenance requirements.
MacPherson Strut System
- Features a coil spring and shock absorber integrated into a single unit
- Provides precise steering response and stability
- Constructed from high-strength steel for durability
- Includes a rubber mount to reduce noise and vibration
Control Arms
- Made from lightweight aluminum for reduced unsprung weight
- Equipped with ball joints for smooth articulation
- Designed to minimize friction and wear
- Reinforced for improved load-bearing capacity
Rear Suspension
The rear suspension system of the A-Class ensures a balanced ride and excellent traction. This section explores the multi-link suspension setup, coil springs, and shock absorbers. Discover how the rear suspension contributes to the car's overall performance.
Rear Suspension
The rear suspension system of the A-Class ensures a balanced ride and excellent traction. This section explores the multi-link suspension setup, coil springs, and shock absorbers. Discover how the rear suspension contributes to the car's overall performance.
Multi-Link Suspension
- Utilizes multiple arms for independent wheel control
- Enhances cornering stability and ride comfort
- Features adjustable camber and toe settings
- Includes bushings for noise reduction
Coil Springs and Shock Absorbers
- Coil springs designed for optimal weight distribution
- Gas-filled shock absorbers for consistent damping
- Engineered to handle varying road conditions
- Includes protective covers to prevent corrosion
Suspension Maintenance
Proper maintenance is essential for the longevity and performance of the A-Class suspension. This section provides tips on inspecting, servicing, and replacing suspension components. Follow these guidelines to keep your suspension in top condition.
Suspension Maintenance
Proper maintenance is essential for the longevity and performance of the A-Class suspension. This section provides tips on inspecting, servicing, and replacing suspension components. Follow these guidelines to keep your suspension in top condition.
Inspection Tips
- Check for leaks in shock absorbers and struts
- Inspect bushings and mounts for wear and tear
- Look for signs of corrosion on suspension components
- Test for unusual noises during driving
Replacement Guidelines
- Replace worn-out components promptly
- Use genuine Mercedes parts for optimal performance
- Follow torque specifications during installation
- Consider professional alignment after replacement
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Component Specifications
Overview
- Type
- Independent MacPherson strut front, multi-link rear
- Configuration
- Front and rear independent suspension
- Platform
- MFA (Modular Front Architecture)
- Material
- High-strength steel and aluminum components
- Location
- Front and rear axle
Dimensions
- Front Track Width
- 60.2 in (1529 mm)
- Rear Track Width
- 59.8 in (1519 mm)
- Wheelbase
- 106.3 in (2699 mm)
- Spring Length Front
- 12.6 in (320 mm)
- Spring Length Rear
- 13.2 in (335 mm)
- Shock ABSorber Travel Front
- 4.7 in (120 mm)
- Shock ABSorber Travel Rear
- 5.1 in (130 mm)
- Ground Clearance
- 5.7 in (145 mm)
Materials
- Springs
- High-carbon steel
- Shock ABSorbers
- Aluminum alloy housing
- Control Arms
- Forged steel
- Bushings
- Polyurethane and rubber composite
- Anti Roll Bar
- Hollow steel tube
Features
- Damping
-
- Hydraulic shock absorbers
- Frequency-selective damping
- Adjustable damping (optional)
- Stability
-
- Electronic Stability Program (ESP)
- Traction control system
- Anti-roll bars
- Dynamic cornering assist
- Adjustability
-
- Ride height adjustment (optional)
- Damping force adjustment
- Sport mode suspension settings
- Comfort
-
- Progressive spring rates
- Noise-reducing bushings
- Vibration dampening mounts
- Durability
-
- Corrosion-resistant coatings
- Reinforced components
- High-temperature seals
Safety Features
- Crash
-
- Energy-absorbing mounts
- Reinforced subframes
- Stability
-
- Electronic Stability Program (ESP)
- Traction control system
- Wheel Control
-
- Precise wheel alignment
- Anti-lift geometry
Comfort Features
- Noise Reduction
-
- Acoustic bushings
- Noise-insulating mounts
- Ride Quality
-
- Progressive spring rates
- Hydraulic rebound stops
- Vibration Dampening
-
- Multi-layered mounts
- Dynamic dampers
- Adjustability
-
- Comfort mode setting
- Adaptive damping
Accessories
- Upgrades
-
- Sport suspension kit
- Lowering springs
- Adjustable coilovers
- Maintenance
-
- Replacement bushings
- Shock absorber kits
- Alignment tools
- Protection
-
- Suspension covers
- Rustproofing spray
- Underbody shields
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect shock absorbers
- Check bushings and mounts
- Lubricate suspension joints
- Inspect anti-roll bar links
- Check wheel alignment
- Maintenance Notes
- Regular inspection for wear and tear, especially in harsh driving conditions.
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Manufacturer defects
- Corrosion
- Miles: UnlimitedYears: 12Coverage: Rust perforation
- Powertrain
- Miles: 100,000Years: 5Coverage: Suspension components
- Extended
- Miles: 120,000Years: 7Coverage: Optional extended coverage
Production Details
- Manufacturer
- Mercedes-Benz AG
- Manufacturing Process
-
- Precision forging
- Heat treatment
- Automated assembly
- Quality testing
- Quality Control
- Materials: ISO 9001 certifiedTesting: Dynamic load testinginspection: X-ray and ultrasonic
- Sustainability
-
- Recycled materials
- Energy-efficient production
- Waste reduction programs
- Production Metrics
- Units Per Year: 500,000Defect Rate: 0.01%Lead Time: 2 weeks
Service Information for suspension Service
Maintenance and service requirements specific to this component
- Inspect shock absorbers
- Check bushings and mounts
- Lubricate suspension joints
- Inspect anti-roll bar links
- Check wheel alignment
Regular inspection for wear and tear, especially in harsh driving conditions.
- Replace worn bushings
- Check and replace shock absorbers if needed
- Inspect and tighten all suspension bolts
- Check for corrosion and apply rustproofing
Use OEM parts for replacements to maintain performance.
- Full suspension inspection
- Replace worn components
- Re-align suspension geometry
- Test and calibrate electronic stability systems
Major service may require specialized tools and equipment.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Is the suspension system compatible with all 2012-2018 Mercedes A-Class models?
Is the suspension system compatible with all 2012-2018 Mercedes A-Class models?
The suspension system is designed to be compatible with all 2012-2018 Mercedes A-Class models, including A180, A200, A220, A250, and AMG variants. However, specific configurations such as AMG Line or Sport models may require additional components. Always verify the exact model and trim level before purchasing or installation to ensure compatibility.
Q2 What maintenance is required for the suspension system?
What maintenance is required for the suspension system?
Regular maintenance for the suspension system includes inspecting shock absorbers, springs, and bushings every 20,000 miles or annually. Ensure alignment is checked every 12 months or if uneven tire wear is noticed. Lubricate moving parts as per the manufacturer's guidelines and replace worn components promptly to maintain optimal performance and safety.
Q3 How do I replace the suspension components on a Mercedes A-Class?
How do I replace the suspension components on a Mercedes A-Class?
To replace suspension components, first, secure the vehicle on a lift or jack stands. Remove the wheels and disconnect the shock absorbers and springs. Install new components in reverse order, ensuring all bolts are torqued to the manufacturer's specifications. An alignment is recommended after replacement to ensure proper handling and tire wear.
Q4 What are common suspension issues and how can I troubleshoot them?
What are common suspension issues and how can I troubleshoot them?
Common suspension issues include knocking noises, uneven tire wear, and poor handling. Knocking noises may indicate worn bushings or loose components. Uneven tire wear often suggests alignment issues. Poor handling could be due to worn shock absorbers or springs. Inspect and replace faulty parts as needed, and ensure proper alignment.
Q5 How can I optimize the performance of my suspension system?
How can I optimize the performance of my suspension system?
To optimize suspension performance, use high-quality components designed for your specific model. Regularly check and maintain alignment, tire pressure, and suspension bushings. Consider upgrading to performance shocks and springs for enhanced handling. Avoid overloading the vehicle, as excessive weight can strain the suspension system.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Mercedes A-Class Suspension Service Manual
Coming SoonDetailed guide covering suspension system maintenance, repair, and replacement for 2012-2018 Mercedes A-Class models.
Technical Service Bulletin for Suspension Updates
Coming SoonOfficial bulletin addressing common suspension issues, updates, and recommended fixes for 2012-2018 Mercedes A-Class vehicles.
Mercedes A-Class Suspension Parts Catalog
Coming SoonComprehensive catalog of suspension components, including part numbers and compatibility details for 2012-2018 models.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
- Vehicle specifications and procedures may vary by model year, trim level, and region.
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