There's a hint of electrification in the 2021 BMW 5 Series , too. Six-cylinder models like this one carry a 48-volt mild-hybrid system. Six-cylinder models like this one carry a 48-volt mild The 2016 BMW 5 Series is a five-passenger four-door sedan available in four trim levels that correspond with different engines: 528i, 535i, 535d and 550i. Quality & Reliability. Great. 82 /100. The problems experienced by owners of the 2023 BMW 5 Series during the first 90-days of ownership. J.D. Power does not score the M5, but you can find predicted reliability information about the model it's based on in our BMW 5 Series review. 2023 BMW M5 Warranty BMW covers the 2023 M5 with a four-year/50,000-mile limited warranty. View all 29 consumer vehicle reviews for the Used 2007 BMW 5 Series 530xi 4dr Sedan AWD (3.0L 6cyl 6M) on Edmunds, or submit your own review of the 2007 5 Series. D3Uxb6x.