Description and Overview

The Mercedes-Benz A45 AMG is a high-performance hot hatch that has gained immense popularity among car enthusiasts. With its sleek design, powerful engine, and advanced features, it has become a genuine alternative to its competitors such as the Audi S3 and RS3.

One of the key factors that sets the A45 AMG apart is its engine. The two-liter inline four engine, which was introduced in the 2013 models, offers a great balance of power and efficiency. In the 2016 facelift, the power was increased to an impressive 381 brake horsepower, surpassing even the recently released R3. This upgrade further solidified the A45 AMG’s position as a true powerhouse in its segment.

Common Problems and Issues

Oil Feed to the Turbo

An issue that is commonly encountered in A45 AMG models built before March 2014 is the oil feed to the turbo. Mercedes overlooked surge protection in the oil feed system, which could potentially lead to turbo damage. Recognizing the seriousness of this problem, Mercedes issued a recall to rectify the issue. It is crucial to ensure that any pre-2014 models have undergone this recall before considering a purchase.

Crankshaft Position Sensor

As these cars age, a common problem that has been observed is related to the crankshaft position sensor. It is recommended to thoroughly inspect the interior of the vehicle, paying close attention to the seats and their bolsters. Tightly bolstered seats, whether in leather or cloth, should be examined to ensure they are still in good condition. This is particularly important for those who have children or pets, as wear and tear may be more evident.

Air Conditioner and Blowers

The air conditioning system in the A45 AMG should be carefully inspected during the buying process. The o-rings on the air conditioner compressor can cause malfunctions, leading to improper cooling. Additionally, issues with blowers, such as a bad resistor or fuse, can also occur. It is advisable to negotiate any air conditioning-related problems with the seller to avoid unexpected expenses. Furthermore, ensure that the blowers are not causing any annoying rattling noises that could be indicative of potential issues.

Pre-Purchase Considerations

Stone-Cold Viewing

When arranging for a viewing, it is crucial to request that the car be completely stone-cold. This will allow you to assess the vehicle’s condition without any potential alterations or tricks. Starting the car fresh and listening for any unusual noises, especially a distinct crunching noise from the gearbox, is essential. If such noises are present, it could indicate that the gearbox may not last much longer.

Camshaft Sensor and MMI Screen

During the test drive, it is recommended to pay attention to the camshaft sensor’s responsiveness when hitting the throttle pedal. Any delay or holding back should be thoroughly examined. Similarly, ensure that the MMI screen is functioning properly to avoid any potential issues, such as random reboots or black screens. Addressing these problems may require costly repairs and should be taken into consideration during negotiations.

Gearbox Performance

The A45 AMG is revered for its slick gearbox and smooth gear changes. It is advisable to test the gearbox at the garage, performing second to third gear changes in every gear. A well-maintained gearbox should exhibit no hesitancy or grinding, providing a smooth and responsive driving experience. However, it is important to be aware that gearbox issues can be costly, so careful evaluation is recommended.

Conclusion

The Mercedes-Benz A45 AMG is a highly desirable hot hatch that offers an incredible driving experience. While it has its share of common problems and issues, proper research and attention to detail during the buying process can help mitigate any potential risks. With a respectable 7 out of 10 reliability rating, the A45 AMG remains a strong contender in its segment and a worthy choice for those seeking a thrilling and dynamic driving experience.