2016 BMW 435I Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2016 BMW 435I, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Engine333.3%
- Driver assistance111.1%
- Electrical111.1%
- Airbags111.1%
- Fuel system111.1%
- Powertrain (other)111.1%
- Steering111.1%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
The contact owns a 2016 BMW 435I. The contact stated that while starting the vehicle, the engine stalled. The battery warning light was illuminated. The vehicle failed to restart and was towed to the dealer. The dealer determined that the VANOS bolts had failed and needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 23V707000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA Hotline. The failure mileage was approximately 107,000.
Water pump causing no start and high battery drain.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
I am submitting a safety complaint regarding my 2016 BMW 435i. My vehicle experienced a sudden water pump failure while I was driving on the freeway. Without warning, the vehicle immediately entered “limp mode,” causing a sudden and dangerous loss of power in active traffic. This created a serious safety hazard because surrounding vehicles had to quickly avoid my car to prevent a collision. I am aware that there is an existing recall and/or known issue involving electric water pump failures on certain BMW vehicles, including similar 2016 BMW models, but my VIN does not qualify for recall coverage despite experiencing the exact same failure and safety-related symptoms. I believe this defect should be investigated further because it creates a substantial risk to driver and public safety when the vehicle suddenly loses power at highway speeds. Additionally, my vehicle has an ongoing issue with the parking collision warning/driver assistance system. The system will randomly trigger collision warnings and emergency alerts even when I am driving safely with no obstacles or vehicles in front of me. These false warnings are distracting and could potentially cause unsafe driver reactions or unnecessary braking events. I request that NHTSA investigate both issues: 1. Sudden electric water pump failure causing immediate limp mode and loss of power while driving. 2. Malfunctioning collision warning system producing false collision alerts without hazards present. These issues present significant safety concerns and appear consistent with known defects affecting similar BMW vehicles. Vehicle Information: * Year: 2016 * Make: BMW * Model: 435iThe I would like to mention I am an active first responder (EMT) and would recommend addressing these safety concerns
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
I am submitting a safety complaint regarding my 2016 BMW 435i. My vehicle experienced a sudden water pump failure while I was driving on the freeway. Without warning, the vehicle immediately entered “limp mode,” causing a sudden and dangerous loss of power in active traffic. This created a serious safety hazard because surrounding vehicles had to quickly avoid my car to prevent a collision. I am aware that there is an existing recall and/or known issue involving electric water pump failures on certain BMW vehicles, including similar 2016 BMW models, but my VIN does not qualify for recall coverage despite experiencing the exact same failure and safety-related symptoms. I believe this defect should be investigated further because it creates a substantial risk to driver and public safety when the vehicle suddenly loses power at highway speeds. Additionally, my vehicle has an ongoing issue with the parking collision warning/driver assistance system. The system will randomly trigger collision warnings and emergency alerts even when I am driving safely with no obstacles or vehicles in front of me. These false warnings are distracting and could potentially cause unsafe driver reactions or unnecessary braking events. I request that NHTSA investigate both issues: 1. Sudden electric water pump failure causing immediate limp mode and loss of power while driving. 2. Malfunctioning collision warning system producing false collision alerts without hazards present. These issues present significant safety concerns and appear consistent with known defects affecting similar BMW vehicles. Vehicle Information: * Year: 2016 * Make: BMW * Model: 435iThe I would like to mention I am an active first responder (EMT) and would recommend addressing these safety concerns
Too few reports in this category for a page of its own — they appear in the full complaint list.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
Airbag sensors are defective. Vehicle states that restraint system is faulty.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
A strong odor of gasoline was noted and it dripped from the tank when the car was driven. Mechanic reported the tank had a leaking seam which he would patch with plastic, so the car can be used while waiting for a replacement tank.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
I WAS DRIVING MY VEHICLE IN DALLAS, TX AND MULTIPLE TIMES THE CAR ENGINE & ALL POWER SHUT OFF, AND THE CAR SHIFTED ITSELF INTO NEUTRAL. I SUSPECT THERE IS AN ISSUE WITH THE AUTO STOP/START FEATURE OR SOMETHING MORE. A CAR SHOULD NEVER SHIFT ITSELF INTO REVERSE WHEN YOU ARE DRIVING. BOTH TIMES ALMOST CAUSED AN ACCIDENT ON THE FREEWAY AS THE CAR CAME TO A SUDDEN HALT AND I HAD NO CONTROL WITH IT SHIFTING INTO N. THE BMW DEALERSHIP & BMW ARE CLAIMING NOTHING IS WRONG. I DO NOT FEEL COMFORTABLE ACCEPTING THIS VEHICLE BACK UNTIL THIS ISSUE IS RESOLVED AND FEEL THE GOVERNMENT SHOULD LOOK INTO ANY ISSUE OF A VEHICLE AUTOMATICALLY SHIFTING INTO N AND POWERING DOWN WHILE DRIVING.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
The contact owns a 2016 BMW 435I. The contact stated while driving at slow speeds, the chassis stabilization warning light was illuminated. The contact took the vehicle to the local dealer, where it was diagnosed with needing the electric power steering (EPS) to be replaced. The vehicle was not repaired. Upon investigation, the contact associated the failure with TSB: SIB321216, however the VIN was not included. The manufacturer had been informed of the failure. The failure mileage was approximately 70,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .