2015 BMW 5 Series.
The 2015 BMW 5 Series is one of the most reliable years by owner complaints: 7 complaints in its first 3 years and a Lemon Index of 15, where 100 is the average car. Owners complain most about visibility, it has 1 recall, and it gets 19 to 30 mpg combined. The best BMW 5 Series year is 2016.

Before you buy. What matters most for this car.
How serious. Out of 97 owner complaints, owners reported:
Every BMW 5 Series year. 2015 is highlighted. Lower is better.
What owners complain about most. From owner complaints to the government.
Share of this year's owner complaints filed with NHTSA, not the share of cars that break. One complaint can name more than one area.
When owners reported problems. From owner complaints to the government.
Most owners who filed a complaint with NHTSA had 44K to 99K miles on the car (41 complaints listed the miles). This shows when people who had a problem reported it, not the odds that your car will have it.
- electrical complaints mostly came at 70K–118K miles
- engine complaints mostly came at 73K–118K miles
Recalls 1
- engine 2024
An improperly sealed electrical connector on the water pump may be exposed to water and short circuit.
Recall repairs are free at any dealer. A recall only matters if it's still open on that exact car, so check its VIN.
Problems BMW told dealers about
BMW sent dealers 333 repair notes for this car. The ones about its biggest problems:
- ?n63t and s63t engine: valve seal replacement
- "airbag warning light: acsm fc 930a60 or 930a1c seat occupancy detection
- "headlight assemblies have visible internal moisture/condensation
Ask a seller or mechanic if these were done. Some are free under warranty or a special program.
Government investigations
- OpenHigh pressure fuel pump failure2023
- OpenDesiccated air bag inflator rupture2021
- ClosedPedestrian alert sounds2023
NHTSA looks into a problem when enough owners report it. Many end in a recall.
Safety

Crash test details
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| BMW 528 I 4 DR RWD | ★★★★★ | ★★★★☆ | ★★★★★ | ★★★★★ |
| BMW 528 I Xdrive 4 DR AWD | ★★★★★ | ★★★★☆ | ★★★★★ | ★★★★★ |
Fuel cost and engines
About $3050–4200 a year in fuel (EPA estimate). Engines: 2.0L 4-cyl, 3.0L 6-cyl, 4.4L 8-cyl.
Quick answers
Is the 2015 BMW 5 Series reliable?
Yes, it is one of the most reliable by government complaints. It drew 6.7× fewer complaints than average filed with NHTSA in its first 3 years, per car sold (Lemon Index 15; 100 is average, lower is better). The best BMW 5 Series year by this measure is 2016.
What are the most common 2015 BMW 5 Series problems?
In owner complaints to the government, the parts named most are visibility (29%), wheels (14%) and body structure (14%). That is the share of complaints, not the share of cars that break.
How many recalls does the 2015 BMW 5 Series have?
1 safety recall (latest: engine). Recall repairs are free at any dealer; check a specific car's VIN at nhtsa.gov/recalls.
What gas mileage does the 2015 BMW 5 Series get?
19 to 30 mpg combined, depending on the engine (EPA estimate).
Is the 2015 BMW 5 Series safe?
NHTSA gave it 5 out of 5 stars overall in its best tested version. Ratings differ by body style, and the full table is on the advanced page.
At what mileage do 2015 BMW 5 Series problems start?
Half of the owners who gave a mileage reported the problem between 44,500 and 99,000 miles. The middle report was at 74,900 miles, from 41 complaints.
Does the 2015 BMW 5 Series have transmission problems?
Transmission and drivetrain issues make up 14% of its owner complaints.
How much does the 2015 BMW 5 Series cost in fuel a year?
About $3050 to $4200 a year, by the EPA's current estimate.
What engines does the 2015 BMW 5 Series have?
2.0L 4-cyl, 3.0L 6-cyl, 4.4L 8-cyl.
What BMW 5 Series year is better than the 2015?
By owner complaints per car sold, the best recent years are 2016, 2015 and 2020.
Lemon Index = safety complaints filed with the U.S. government (NHTSA) in a car's first 3 years, per car sold, against the average car of the same model year. 100 is average; lower is better. A complaint is an owner's report, not a confirmed defect. How it works