5 diesel SUVs to avoid: a rating of unreliable models.

For a long time, diesel SUVs were considered an economical and practical choice for drivers who value mileage and power. However, some models fail to meet owners' expectations due to low reliability, high repair costs, and ongoing engine or transmission issues.

Experts from SUV News have identified the five worst among them.

Nissan X-Trail 2.0 dCi (2014–2019)

Nissan X-Trail 2.0 dCi (2014–2019). Photo: Automotive News Europe

• rapid turbine wear (often after 120-150 thousand km);
• weak timing chain that may stretch earlier than stated;
• fuel system vulnerable to low-quality diesel.

BMW X5 (E70) 3.0d (2007–2013)

BMW X5 (E70) 3.0d (2007–2013). Photo: Haynes

• failure of swirl flaps in the intake manifold, which may lead to debris entering the cylinders;
• problematic diesel particulate filters (DPF) – their regeneration often requires costly repairs;
• high cost of original parts and complexity of repairs.

Ford Kuga 2.0 TDCi (2013–2018)

Ford Kuga 2.0 TDCi (2013–2018). Photo: Daily Maverick

• frequent failures in the fuel system, especially when refueling with low-quality fuel;
• recurring issues with the EGR system, leading to power loss and increased fuel consumption;
• short lifespan of the turbocharger and dual oil filter.

Jeep Grand Cherokee 3.0 CRD (2011–2017)

Jeep Grand Cherokee 3.0 CRD (2011–2017). Photo: Automotive News Europe

• fuel injector leaks, leading to power loss and exhaust smoke;
• weak timing chains and frequent issues in engine electronics;
• transmission problems at high mileage.

Renault Koleos 2.0 dCi (2008–2016)

Renault Koleos 2.0 dCi (2008–2016). Photo: Renault

• weak fuel system sensitive to the slightest impurities in the diesel;
• frequent failures of the diesel particulate filter and the EGR valve;
• problems with the automatic transmission, especially in all-wheel-drive versions.

Experts remind that not all diesel SUVs are equally reliable. Before purchasing a used SUV, be sure to check owners' reviews, service history, and typical 'weak spots' of the specific model.

Let us remind you that we previously reported on diesel engines that continue to work even after 500,000 km.

We also wrote about the average lifespan of a car battery in a gasoline vehicle. The service life of the battery is considerable, but there are nuances.

This article discusses the five worst diesel SUVs according to SUV News. Experts have identified models with problems that can turn out to be quite serious for owners, including rapid wear of some components, issues with the fuel system, and high repair costs. The importance of careful selection when purchasing a used car, considering its history and reputation in the market, is emphasized.