Problems · NHTSA complaints

2015 BMW 5 Series problems

Owners filed 100 complaints about the 2015 BMW 5 Series with NHTSA between Feb 2016 and Aug 2026. The most-cited component is electrical system (44).

Complaints
100
Filed with NHTSA
Crashes
2
Reported by owners
Fires
5
Reported by owners
Injuries
1
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Electrical system44
  2. Engine and engine cooling37
  3. Engine19
  4. Fuel/propulsion system8
  5. Structure7
  6. Power train5
  7. Exterior lighting5
  8. Air bags4
  9. Steering3
  10. Suspension3
  11. Wheels3
  12. Tires2
  13. Seat belts2
  14. Fuel system, diesel2

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Data from NHTSA Complaints API · synced Nov 10, 2026NHTSA vehicle page
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20163
20170
20184
20197
20203
20212
20228
20237
202423
202535
20268

Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.

03 —Owner reports

Top problems in owners’ words

Verbatim from NHTSA complaints, newest first

Electrical system

44 reports3 fires
“The contact owns a 2015 BMW 528i. The contact stated that while idling, there was smoke emerging from under the hood, and the contact discovered that the electrical connection for the water pump caught fire. No warning light illuminated. The contact extinguished the fire using a fire extinguisher. No injury was reported, and no police report was filed. The vehicle was towed to the dealer, where it was diagnosed and determined that the water pump and other damaged components needed replacement. The contact associated the failure with NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System). The dealer submitted a claim to the manufacturer, but the manufacturer denied coverage because the water pump was previously replaced. The vehicle was not repaired. The contact had not directly contacted the manufacturer. The failure mileage was approximately 141,000.”
Owner complaint to NHTSAFiled Aug 26, 2026Engine and engine cooling, Electrical systemFire reportedODI 11759782

Engine and engine cooling

37 reports2 fires2 related recalls
“The contact owns a 2015 BMW 528i. The contact stated that while his vehicle was parked, the coolant pump connector caught on fire, which was connected to a after market Coolant pump. The failure experienced was a localized electrical fire that originated at the coolant pump connector and aftermarket coolant pump while the vehicle was parked. The contact referenced NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM) but was told by the dealer they could not repair the recall due to the vehicle having an aftermarket coolant pump. The contact stated he originally replaced the coolant pump with an aftermarket one due to a failure, as advised in the recall notice. The vehicle was occupied during the failure. There was grey smoke coming from the engine and inside the vehicle, with flames that were coming from the hood and under the engine. The fire originated specifically within the coolant pump assembly and its associated electrical connector, with the thermal damage concentrated in that area before spreading. The fire department was able to extinguish the fire. The vehicle was towed to the dealer. The vehicle was not repaired. The…”
Owner complaint to NHTSAFiled Feb 6, 2026Engine and engine cooling, Electrical systemFire reportedODI 11716235

Engine

19 reports2 fires
“I am filing an official safety recall non-compliance and documentation fraud complaint against the franchise dealership, BMW of [XXX], regarding their handling of active safety campaigns B110724 (Electric Water Pump) and B120921 (DME Control Unit).Following a severe engine overheating failure related to the water pump recall, both BMW Roadside and the dealership denied my request for a safety tow, forcing me to pay out-of-pocket for a private flatbed. Upon arrival, the dealership held my vehicle for over a week, explicitly withholding the mandatory safety campaign remedies to leverage an aggressive $4,517.18 retail repair quote for secondary turbo coolant lines. My service advisor explicitly left a voicemail stating: "That is why we were waiting to see if you were going to have the work performed before finishing up that 2nd recall."Furthermore, the dealership committed administrative fraud regarding federal disclosure rules. On my final paperwork under Repair Order #XXX, the dealership checked Box #4 on the 'Vehicle Recall Status Disclosure' page, falsely certifying under penalty that the vehicle was 'Not Subject to an Open Safety Recall'—directly…”
Owner complaint to NHTSAFiled Aug 13, 2026EngineODI 11756649

Fuel/propulsion system

8 reports
“Fuel pump failure causing engine to spontaneously shut down on road or freeway at any speed. This puts the safety of occupants in my car and the cars around me in danger as I need to put my hazards and safely move the car to the side of the road. No warning prior to failure. Warning and check engine light came on after problem occurred.”
Owner complaint to NHTSAFiled Sep 23, 2025Fuel/propulsion systemODI 11689241

Structure

7 reports1 crash2 fires
“the vehicle was driven for approximately 30 minutes, operating with zero dashboard warnings or performance indicators. The vehicle was then parked on my property and turned off completely. Approximately two hours and thirty minutes later, the vehicle spontaneously ignited while stationary and unoccupied. The local fire department responded and successfully extinguished the blaze. Both physical observations and my home security camera footage confirm that the point of origin was the front right passenger side of the engine compartment. This exact location houses the factory electric water pump and its electrical plug connector, directly matching the failure mechanism detailed in NHTSA Campaign 24V608000, wherein fluid intrusion causes a severe, persistent electrical short circuit capable of igniting a fire hours after the vehicle is parked. The car is completely totaled because of this.”
Owner complaint to NHTSAFiled Jun 23, 2026Electrical system, Structure, EngineFire reportedODI 11746090

Power train

5 reports1 crash
“The contact owns a 2015 BMW 528i. The contact stated that while driving up a ramp at 5 MPH, the transmission unintendedly shifted into Neutral (N) and the engine experienced a total loss of motive power. No warning lights illuminated. The vehicle rolled backward, struck the front bumper of another vehicle, and stopped upon impact. The vehicle sustained rear bumper damage. The airbags did not deploy. A police report was not filed, and no injuries or property damage were reported. The vehicle was not towed. The dealer was notified of the failure; however, the vehicle was not diagnosed due to diagnostic costs. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 110,000.”
Owner complaint to NHTSAFiled Aug 28, 2026Power trainCrash reportedODI 11760329
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.