Mercedes-Benz Mercedes A-Class 2012-2018 Suspension Specifications
Mercedes-Benz Mercedes A-Class 2012-2018

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.

Updated

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

Use the search functionality to quickly find specific suspension components or terms. Enter keywords like 'front suspension' or 'shock absorbers' to locate relevant sections. This tool is ideal for pinpointing exact information without scrolling through the entire document.

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.

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.

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.

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

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: 50,000
Years: 4
Coverage: Manufacturer defects
Corrosion
Miles: Unlimited
Years: 12
Coverage: Rust perforation
Powertrain
Miles: 100,000
Years: 5
Coverage: Suspension components
Extended
Miles: 120,000
Years: 7
Coverage: Optional extended coverage

Production Details

Manufacturer
Mercedes-Benz AG
Manufacturing Process
  • Precision forging
  • Heat treatment
  • Automated assembly
  • Quality testing
Quality Control
Materials: ISO 9001 certified
Testing: Dynamic load testing
inspection: X-ray and ultrasonic
Sustainability
  • Recycled materials
  • Energy-efficient production
  • Waste reduction programs
Production Metrics
Units Per Year: 500,000
Defect Rate: 0.01%
Lead Time: 2 weeks

Service Information for suspension Service

Maintenance and service requirements specific to this component

30,000
24
  • 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.

60,000
48
  • 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.

100,000
84
  • 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?

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?

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?

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?

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?

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 Soon

Detailed guide covering suspension system maintenance, repair, and replacement for 2012-2018 Mercedes A-Class models.

Technical Service Bulletin for Suspension Updates

Coming Soon

Official bulletin addressing common suspension issues, updates, and recommended fixes for 2012-2018 Mercedes A-Class vehicles.

Mercedes A-Class Suspension Parts Catalog

Coming Soon

Comprehensive catalog of suspension components, including part numbers and compatibility details for 2012-2018 models.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

15+ Years
Experience
500+ Guides
Guides
50+ Makes
Vehicles
1000+ Solutions
Solutions

Diagnostic

Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.

Repair

Expert in both traditional mechanical repairs and modern vehicle systems.

Additional Expertise

Documentation

Created over 500 detailed repair guides and technical documents.

Training

Conducted technical training sessions and contributed to repair databases.

Certifications & Research

Certifications

  • ASE Master Technician Certification
  • Advanced Diagnostic Specialist
  • Hybrid/Electric Vehicle Systems
  • Performance Tuning Expert

Research & Community

Actively researches emerging technologies and contributes to automotive forums.

Legal Disclaimer

Important information about using this content

Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.

General Information
The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
Warranty & Liability

The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.

We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.

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.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • If you're unsure about any procedure, consult a qualified professional mechanic.
Intellectual Property
All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.

© 2025 Mercedes-Benz Specs. All rights reserved.