2017 BMW 5 Series — should you buy one?

Why people love the 2017 BMW 5 Series

The 2017 5 Series came with the N55 or B58 turbocharged six-cylinder engine—the B58 especially is known for strong mid-range torque and good fuel economy for a luxury sedan. Owners praise the buttery eight-speed automatic transmission paired with that engine; shifts feel natural, not jerky like some competitors that year. The iDrive 5.0 infotainment system in 2017 models is snappier than the older iDrive iterations, with a touchscreen and voice control that owners actually use without frustration.

Common complaints and known issues

The N55 engine (in lower trims) develops carbon buildup on intake valves around 60k–80k miles, causing rough idle and hesitation on cold starts; cleaning runs $600–$1,200. Panoramic sunroof seals fail prematurely, causing leaks into the headliner by 70k–90k miles and costing $1,500+ to replace. Transmission mechatronic units occasionally malfunction around 100k miles, triggering limp mode; some dealers have issued service bulletins but repairs are expensive. NHTSA complaints also mention infotainment system freezes and steering wheel trim peeling.

Typical asking price

Under 80k miles: $22,000–$28,000. 80k–140k miles: $16,000–$22,000. Over 140k miles: $12,000–$17,000. Prices vary by whether the car has the newer B58 engine (higher value), service history documentation (dealers ask 10–15% more), regional collision rates, and whether the sunroof has already been replaced (as a bonus for the buyer).

Ranges are typical 2026 asking prices, not appraisals. The actual fair offer depends on this specific car's title history, accident record, and open recalls — which is what EstimateProof tells you.