Mercedes A45 AMG W177 Buying Guide

Mercedes A45/A45S W177 Buyers Guide (2019 onwards)

The Mercedes-Benz A45 and A45S W177, launched in 2019, are high-performance hatchbacks that combine luxury and sports car performance. With the 2.0-litre turbocharged engine at their core, these cars are designed to offer exceptional driving dynamics and an exhilarating experience. If you're considering buying one of these vehicles, this guide will help you navigate the key features, differences, and optional packs to ensure you make an informed decision.

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Key Differences Between A45 and A45S

The A45 and A45S are closely related, but there are some important distinctions between the two models. The primary difference lies in the performance output. The A45 is powered by a 2.0-litre turbocharged four-cylinder engine producing 387 bhp, while the A45S boasts an upgraded version of the same engine that delivers 415 bhp. Both models come with 4MATIC+ all-wheel drive and an 8-speed dual-clutch transmission, but the A45S features more advanced suspension and a more aggressive performance setup. This makes the A45S slightly faster and more capable on track days, but both models deliver blistering acceleration and cornering performance.

Another key difference is the additional features found in the A45S. It comes with more standard equipment, including a sportier exhaust system, larger wheels, and an upgraded braking system, as well as more luxurious finishes inside the cabin.

Engine and Performance

Both the A45 and A45S share the same engine architecture—a 2.0-litre turbocharged inline-4. This engine is one of the most powerful 2.0-litre engines in production and offers an incredibly punchy driving experience.

• A45: 387 bhp, 0-62 mph in 4.0 seconds
• A45S: 415 bhp, 0-62 mph in 3.9 seconds

The 4MATIC+ system provides outstanding grip and stability, whether you're tackling twisty backroads or accelerating hard from a standstill. The 8-speed dual-clutch transmission delivers rapid gear changes, keeping the driving experience engaging and smooth.

Both models benefit from a rear-biased all-wheel-drive system that ensures excellent handling, but the A45S is better suited for those who want a slightly sharper, more responsive experience on the road.

Interior and Technology

Inside, both the A45 and A45S offer a modern, high-tech cabin with high-quality materials. The cabin is dominated by two 10.25-inch digital displays, one for the instrument cluster and the other for the infotainment system. The MBUX system is intuitive, featuring touch-sensitive controls, voice recognition, and a sleek interface.

Comfort-wise, the A45 models come with sport seats, which are a little firmer than in other A-Class models, designed to keep you in place during spirited driving. However, they may not be as comfortable on long journeys as more relaxed seats.

Optional Packs and Features

Both the A45 and A45S can be customised with a variety of optional packs to tailor the car to your preferences. Here are some of the most common options available:

• AMG Night Package: This pack adds darkened exterior elements such as black mirror caps, grille, and trim. It provides a more aggressive look, perfect if you prefer a stealthier design.
• AMG Performance Seats: These seats offer greater support and comfort for spirited driving. They also have additional adjustment options to suit different body types.
• Driver Assistance Package: For those who want added convenience and safety, this package includes features such as active lane-keeping assist, adaptive cruise control, and parking sensors.
• Panoramic Sunroof: A popular option for buyers who want to add extra light and air to the cabin, this feature improves the overall driving experience and makes the interior feel more open.
• Burmester Sound System: If you’re an audiophile, this premium sound system offers an immersive listening experience with crisp highs and deep bass.

Reliability and Maintenance

Mercedes-Benz is known for producing reliable vehicles, but like all high-performance cars, the A45 and A45S require regular maintenance to keep them performing at their best. It’s important to ensure that any potential purchase has a full service history, especially for a high-performance model like this.

Look out for any signs of irregular wear, particularly on the brakes and tyres, as these cars are likely to undergo more stress than standard models. While the powertrain is robust, be mindful of any unusual noises or behaviours from the transmission or drivetrain, particularly after hard driving.

The cost of maintenance and repairs on an A45 or A45S can be higher than a regular A-Class due to the more specialised components and performance parts, so be prepared for potential higher running costs.

What to Look for When Buying

When buying a second-hand A45 or A45S, there are several things to check:

Service History: Make sure the car has been regularly serviced by a Mercedes-Benz dealer or a reputable specialist.

Wear and Tear: Inspect the condition of the interior, seats, and trim. Performance models like the A45 are often driven harder than regular models, so signs of excessive wear may indicate the car has been pushed too hard.

Suspension and Brakes: Pay attention to the suspension components, especially if the car has been used on track days. Worn brake pads or tyres are also an indication that the car may have been driven aggressively. You can check out our full range of all parts available for your A45/A45S W177 here

Exterior Condition: Check for any signs of paintwork damage or accidents. The AMG models tend to attract enthusiasts, and many owners take pride in keeping their cars in top condition, but it’s always good to inspect the body for any repairs.

Conclusion

The Mercedes-Benz A45 and A45S W177 are outstanding hot hatches that offer a blend of luxury, performance, and cutting-edge technology. With impressive power, sharp handling, and a high-quality interior, both models provide an exhilarating driving experience. The A45S takes things a step further with additional performance upgrades, but both versions are excellent choices depending on your preferences.

When buying one of these cars, be sure to check the service history, assess the condition of the car, and consider which optional packs best suit your needs. Whether you choose the A45 or A45S, you're in for a thrilling ride.