2016 BMW 640i
2016 BMW 640i
Overview
The 2016 BMW 640i, part of the F13 generation, is generally considered a reliable luxury grand tourer, especially given its performance-oriented nature. It typically features a potent turbocharged inline-six engine paired with a smooth automatic transmission. While owners generally report a positive ownership experience, like any complex vehicle, certain areas can experience issues over time. This analysis focuses on documented, non-wear-and-tear related problems reported by owners and technicians, excluding routine maintenance. The focus is on providing a clear picture of potential technical vulnerabilities beyond standard upkeep.
Engine
3.0L Twin-Turbocharged Inline-6 (N55)
Water Pump Failure
- Symptoms: Overheating, coolant leaks, warning lights on the dashboard.
- Solution: Replacement of the electric water pump and thermostat.
- Cost: $700 - $1200
Turbocharger Issues
- Symptoms: Loss of power, whistling noises, increased oil consumption.
- Solution: Turbocharger inspection and potential rebuild or replacement.
- Cost: $1500 - $3000
PCV Valve Failure
- Symptoms: Rough idle, oil leaks, potential engine misfires.
- Solution: Replacement of the Positive Crankcase Ventilation (PCV) valve assembly.
- Cost: $300 - $600
Transmission
8-Speed Automatic (ZF 8HP)
No widespread issues reported.
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
Suspension
Adaptive Drive System
Active Anti-Roll Bar Malfunction
- Symptoms: Increased body roll during cornering, warning lights related to suspension.
- Solution: Repair or replacement of the active anti-roll bar actuators.
- Cost: $1000 - $2500
Standard Suspension
No widespread issues reported.
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
Electrical
Infotainment System (iDrive)
Software Glitches
- Symptoms: Screen freezing, unresponsive controls, Bluetooth connectivity issues.
- Solution: Software updates or system resets. In severe cases, module replacement.
- Cost: $200 - $1000
Battery Drain
Parasitic Battery Drain
- Symptoms: Dead battery after short periods of inactivity, electrical components malfunctioning.
- Solution: Diagnosis to find the source of the drain (e.g., faulty module, wiring issue) and repair.
- Cost: $300 - $800
Exterior
Body Panels and Trim
No widespread issues reported.
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
Convertible Roof Mechanism (if applicable)
Roof Malfunction
- Symptoms: Slow operation, failure to open or close, unusual noises.
- Solution: Inspection and repair of hydraulic lines, motors, or sensors.
- Cost: $800 - $2000
Interior
Leather Upholstery
No widespread issues reported.
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: No widespread issues reported.
Climate Control System
Blend Door Actuator Failure
- Symptoms: Inability to control temperature or airflow direction.
- Solution: Replacement of the faulty blend door actuator.
- Cost: $300 - $600
Summary Verdict
The 2016 BMW 640i is a well-built luxury vehicle with a generally strong reliability record. The primary areas of concern tend to be related to the complex turbocharged engine, particularly the water pump and PCV system, and potential issues with the adaptive suspension components. Electrical gremlins, such as infotainment glitches and parasitic battery drain, can also occur. For convertible models, the roof mechanism is an area to monitor. Despite these potential issues, which are not uncommon for high-performance luxury cars of this era, the 640i offers a rewarding driving experience when properly maintained. Addressing potential problems proactively can ensure continued enjoyment and reliability.