Mercedes A45 AMG W176 Maintenance Guide

The Mercedes-AMG A45 W176, produced from 2013 to 2018, is a high-performance hot hatch that demands regular maintenance to ensure it continues to perform at its best. With its 2.0-litre turbocharged engine, all-wheel-drive system, and sophisticated components, proper care is crucial to keeping the car running smoothly over time. In this guide, we’ll cover the key aspects of maintaining an A45 AMG, including service intervals and tasks to look out for.

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Service Intervals: A and B Services

Mercedes-Benz uses a two-tier service system for their vehicles, known as the A and B services. These services alternate, with A being the more frequent and B the more extensive. Below is an overview of the recommended service intervals for the A45 AMG.

• A Service: Every 10,000 miles or 12 months (whichever comes first)
• B Service: Every 20,000 miles or 24 months (whichever comes first)

These intervals are based on standard usage. However, if you drive your A45 AMG in more demanding conditions, such as frequent short trips, heavy traffic, or spirited driving, you may need to service the car more frequently. It's also important to remember that these intervals are based on time or mileage, so if you don’t reach the mileage threshold in a year, it's still necessary to get the car checked.

A Service Tasks

The A service is typically more basic, focusing on the car’s general health. It usually includes:

• Oil Change: The engine oil and filter are replaced to ensure the engine runs smoothly. Using the correct oil for the turbocharged engine is essential to prevent any damage or reduced performance.
• Brake Check: The condition of the brake pads and discs will be checked, as well as the brake fluid levels.
• Tire Inspection: The condition of the tires, including tread depth and pressure, will be checked. This ensures safe handling and braking performance.
• Air Filter Replacement: The engine air filter is checked and replaced if necessary. This helps ensure the engine receives a clean supply of air for optimal performance.
• Visual Inspection of Fluids: A check will be made of all key fluids, such as coolant, power steering fluid, and transmission fluid. Any top-ups or changes will be recommended if necessary.
• General Function Check: A general inspection of key components like lights, wipers, and the battery will be performed to ensure they are in good working order.

B Service Tasks

The B service includes all the tasks performed during the A service, but it’s more comprehensive and typically requires more time in the workshop. The following tasks are commonly included in the B service:

• Oil Change: As with the A service, the engine oil and filter will be replaced.
• Brake Fluid Replacement: Every two years, the brake fluid should be replaced to ensure the braking system works effectively and to prevent moisture from building up.
• Cabin Air Filter Replacement: The cabin air filter, which ensures clean air inside the car, will be replaced.
• Fuel Filter Replacement: The fuel filter may need replacing during the B service, depending on the vehicle’s age and condition.
• Comprehensive Inspection: A more in-depth inspection of the vehicle’s systems, such as the exhaust, cooling system, and suspension, will be carried out.
• Additional Fluid Checks: A more thorough check of all fluids, including the transmission fluid, will be conducted. Any top-ups or replacements will be recommended.

Other Key Maintenance Areas

In addition to the regular service schedule, there are several other components in the A45 AMG that require attention to maintain the vehicle’s performance and reliability.

Turbocharger and Intercooler
The A45's 2.0-litre turbocharged engine delivers impressive performance, but the turbocharger can suffer from wear over time, particularly if the car is driven hard. Regular oil changes and proper cooling are essential for maintaining turbo health. Pay attention to any performance loss or unusual sounds from the turbo, as these could indicate a problem.

Transmission Fluid
The A45 AMG uses a 7-speed dual-clutch transmission (DCT), which provides quick shifts and excellent driving performance. However, like any transmission, it requires regular care. It’s recommended to replace the DCT fluid every 40,000 miles or 4 years, although this can vary based on driving conditions. A failure to do so could result in jerky shifts or even transmission damage.

Brakes
Given the high-performance nature of the A45 AMG, brake components tend to wear out faster than on a standard car. It’s important to regularly check the brake pads, discs, and fluid. The brake fluid should be replaced every 2 years, while the pads and discs may need replacing every 30,000-40,000 miles, depending on your driving style. Check out our range of performance/aftermarket braking options for your A45 by clicking here

Suspension and Steering
The A45 AMG comes with an adaptive suspension system designed for both comfort and performance. Over time, the shock absorbers or dampers may need replacing, especially if the car has been driven hard. Keep an eye out for any unusual noises from the suspension, which could indicate worn components. Check out out wide range of suspension components for your A45 here

Battery Health
The battery in your A45 AMG should be checked during every service, especially as the car ages. A weak or failing battery can cause starting issues and may affect the car’s electronic systems. In extreme cases, it could lead to problems with the car’s performance.

Common Issues to Watch Out For

While the A45 AMG is generally a reliable car, some issues may arise as the vehicle ages. Below are a few things to keep an eye on:

• Oil Leaks: Over time, seals and gaskets in the engine may start to degrade, causing oil leaks. Regular checks during servicing should catch any leaks early.
• Clutch and Gearbox: Some owners report occasional issues with the dual-clutch transmission, particularly jerky shifting at low speeds. If the transmission is not shifting smoothly, it could indicate a problem with the clutch or gearbox.
• Exhaust System: Given the performance nature of the A45, the exhaust system can sometimes suffer from corrosion or damage. Regular inspections should ensure the system is in good condition.

Conclusion

Proper maintenance is essential to keep your Mercedes-AMG A45 W176 running at its best. By adhering to the recommended A and B service intervals and paying attention to key areas such as the turbocharger, suspension, and transmission, you can ensure that your A45 AMG continues to deliver the high-performance driving experience you expect. Regular servicing and proactive maintenance will help avoid costly repairs down the line and allow you to enjoy your A45 for many years to come.