04:44 27-01-2026

The most reliable used BMW models and years to buy

Buying a used BMW always involves balancing the desire for that legendary driving experience against the risk of expensive repairs. Owner reviews and J.D. Power data confirm that BMW's reliability has improved significantly, but differences between specific models and model years remain substantial. To make the right choice, it's crucial to understand which powertrains have proven successful and which ones are best avoided.

The Most Reliable Choice

The 2017 X3 M40i remains one of the best finds on the used market. Its B58 turbocharged inline-six, a symbol of BMW's new era, delivers power and durability without the characteristic issues of earlier N54 and N55 engines. In practice, owners often reach 150,000 kilometers without major interventions, encountering only minor coolant leaks or valve cover gasket replacements.

J.D. Power records high reliability scores for the X3 of this specific year, highlighting its well-balanced chassis, modern electronics, and a motor refined to a mature technological level.

When Success Depends on the Right Year

The compact 2 Series from the 2016 model year became much more reliable than its predecessors. BMW addressed critical flaws in the N20 engine related to premature timing chain guide wear. After a modernization in 2015, the powertrain became predictable to maintain and notably more durable.

For buyers, this translates to a simple formula: the 2016 model is a safe bet. Its combination of dynamics, compact size, and moderate ownership costs has made this particular year the most attractive on the secondary market.

Reliability Arrives with the Final Facelift

The F15-generation X5 ended its production cycle in 2018, meaning it received the most refined electronics, updated calibrations, and solutions for the early-production teething problems. The version with the N55 engine offers the best blend of power, longevity, and repairability.

Unlike the finicky V8 N63, which required numerous fixes for its early issues, the inline turbocharged motor demonstrates stability and predictability even after 150,000 to 180,000 kilometers. Experts consider the 2018 model the most worry-free year for buying an F15 X5.

A Complex Car with a Reliable Engine

The only model on this list that has sparked so much debate is the E65/E66 business-class sedan. The car indeed has complex electronics and a finicky suspension, but its N52 engine is renowned as one of BMW's most reliable inline-six powerplants. The absence of turbocharging is a key advantage for longevity.

Problems typically stem from the vehicle's age, not the powertrain. Therefore, selecting a specific example should be based on thorough diagnostics. A well-maintained sedan can cover tens of thousands more kilometers without surprises.

One of the Safest Options

The same effect seen with the 2 Series is evident in the 3 Series from the 2016 model year. After the timing chain issues were resolved, the N20 engine became the optimal choice for the used market: economical, torquey, and predictable in operation.

The 3 Series traditionally remains BMW's most versatile model, and by 2016 it achieved a balance between repairability and modern features. For those transitioning to the BMW brand, it's one of the most attractive models available.