Is the BMW 520d 2018 reliable?
As of February 2026, the BMW 5 Series has a Used Car Expert Rating of D, with a score of 57%. It scores top marks for its media reviews and its low CO2 emissions (thanks to the plug-in hybrid version), but gets very poor grades for its reliability issues and high running costs. Among BMW enthusiasts and long-time owners, the 5 Series is regarded as a reliable daily driver with luxury appeal. Many BMW owners on forums report owning G30-generation models or earlier, with over 180,000 miles still operating without major engine overhauls.As a whole, consumers found the vehicle’s comfort and performance to be its strongest features and value to be its weakest. Series five out of five stars. Overall, consumers seem aligned in their opinions of the 2018 BMW 5 Series.Which BMW 5 Series years are the best? Among newer models, the 2019 to 2023 G30 series 5 Series models are the most reliable. The new-for-2024 G60 design is brand new and, therefore, has been under warranty for a while, but there’s obviously very little reliability data on it so far.Which BMW 5 Series years are the best? Among newer models, the 2019 to 2023 G30 series 5 Series models are the most reliable. The new-for-2024 G60 design is brand new and, therefore, has been under warranty for a while, but there’s obviously very little reliability data on it so far.The bmw 3 series is one of the most popular and reliable used bmw models. Between 2012 and 2015, the 3 series perfectly balanced performance, comfort, and fuel efficiency. It is known for its smooth ride, strong acceleration, and responsive handling.
What are common problems with the 520d?
Potential engine issues in older models: Early N47-powered 520d cars (built before 2014) can suffer timing chain stretch, EGR valve clogging and turbocharger wear. N47 engine reliability problems One of the most notorious problems with the N47 engine is timing chain failure . Located at the rear of the engine, it is difficult to access, making repairs particularly expensive. A rattling noise coming from the rear of the engine is often an early sign of premature wear.Timing Chain Failures: The most significant issue with the N47 is the timing chain. Many owners have reported premature timing chain failures, which can lead to catastrophic engine damage if not addressed in time. This issue is especially common in engines with higher mileage (over 100,000 miles).