Pros and cons of diesel cars in the aftermarket

Diesel cars on the aftermarket remain a popular choice in 2025, especially for those looking for economical and reliable transport. As of 14:39 6 June 2025, the used car market in Russia offers many diesel models. However, such autos have both advantages and disadvantages. In this article, GetCar.ru and I will break down the pros and cons of used diesel cars to help you make a decision.

Advantages of diesel vehicles

Fuel savings

Diesel cars are more economical than petrol cars. For example, the average consumption of the diesel Volkswagen Tiguan 2.0 TDI is 5.5 litres/100 km, which is 20-30% less than its petrol counterpart. Also, diesel in 2025 remains cheaper than petrol in some regions. In addition, the greater range on a single tank makes such autos convenient for long journeys. This is one of the major pluses of diesel cars in the aftermarket.

High torque

Diesel engines deliver high torque. For example, the BMW X5 with the 3.0d engine produces 560 Nm, which improves dynamics when overtaking and transporting goods. It also makes diesel cars suitable for towing trailers. In addition, such a motor is better able to cope with loads. This is the advantage of a diesel car for practical drivers.

Engine durability

Diesel engines are more durable. For example, Mercedes-Benz OM642 series engines can last up to 500,000 kilometres with proper care. Their construction is also more robust, which reduces wear and tear. However, this is only true with regular servicing. Durability makes used diesel cars attractive for long-term use.

Disadvantages of diesel cars

High cost of maintenance

Maintenance of diesel cars is more expensive. For example, replacing the fuel filter and injectors costs 15,000-30,000 roubles every 50,000 km. Also, the diesel particulate filter (DPF) requires cleaning or replacement, which costs up to 100,000 roubles. In addition, turbine repair can add another 50,000 roubles. This is a serious disadvantage for diesel cars on the aftermarket.

Sensitivity to fuel quality

Diesel engines are sensitive to fuel. For example, low-quality diesel fuel can clog the injectors, resulting in loss of power. Also, fuel can freeze in winter without additives, especially in northern regions of Russia. In addition, frequent refuelling at untested petrol stations shortens engine life. This is a problem for used diesel cars.

Environmental constraints

Environmental regulations make operation more difficult. For example, in 2025, Russia's major cities will introduce zones with restrictions for diesel cars below Euro-5. Also, particulate filters and AdBlue systems require additional maintenance costs. In addition, resale of such cars becomes more difficult due to strict standards. This is a disadvantage for diesel cars with mileage.

What to look out for when buying

Checking the condition of the engine

Check the engine before you buy it. For example, look out for black smoke from the exhaust pipe - this is a sign of problems with the injectors. Also check the particulate filter and turbine at the diagnostics. In addition, ask for service history to make sure the maintenance is regular. This is important for aftermarket diesel cars.

Evaluation of mileage and operating conditions

Mileage affects the condition. For example, a diesel engine with over 200,000 kilometres may require serious repairs. Also check whether the car has been used as a taxi or for freight transport. In addition, check how the car was used in winter. This will help you choose reliable diesel cars.

Conclusion: a balanced choice in 2025

Aftermarket diesel cars offer fuel economy, high torque and durability, but have high maintenance costs and fuel sensitivity. With GetCar.co.uk you can choose the right option among diesel cars with mileage. Check the condition of the engine and take into account the operating conditions to make the purchase favourable and reliable!