2017 BMW 640i Convertible Maintenance Schedule & Service Intervals

Key Takeaways

• The 2017 BMW 640i Convertible (F12 chassis) is powered by the N55 3.0L turbocharged inline-six engine developing 315 horsepower and 330 lb-ft of torque .
• BMW utilizes a Condition Based Service (CBS) system that uses sensors and driving data to calculate maintenance needs based on actual driving conditions rather than fixed intervals .
• A conservative synthetic oil change interval is recommended at 5,000 miles for optimal engine protection; the CBS system typically indicates service around 10,000 miles or 12 months .
• The vehicle carries a 48-month/50,000-mile basic and powertrain warranty, with 36 months/36,000 miles of scheduled maintenance coverage from the original in-service date .

Understanding BMW's Condition Based Service (CBS) System

The 2017 BMW 640i Convertible utilizes BMW's Condition Based Service (CBS) system, a sensor-driven approach that calculates service intervals based on how the vehicle is actually driven rather than fixed mileage schedules . BMW utilizes electronic oil measurement to monitor the engine load on the current oil fill, based on driving style and distances .

Service information is displayed through the instrument cluster and iDrive system with a service interval warning that alerts the driver when maintenance is approaching or due . Following the guidelines listed in the BMW Owner's Manual helps owners stay aware of all aspects of their maintenance schedules .

OEM Factory Maintenance Schedule

BMW's maintenance guidelines are sensor-driven and center around the CBS system, which is cycled to occur every 10,000 miles, whether it involves a simple oil change or other standard service .

Engine Oil and Filter Change

The 2017 640i Convertible uses the N55 3.0L turbocharged inline-six engine . BMW's CBS system will indicate when an oil service is due, typically around 10,000 miles or 12 months, whichever occurs first .

Oil Specifications:

• BMW-approved synthetic oil meeting Longlife specifications
• Oil and oil filter changes occur at the CBS-indicated interval

Conservative Owner Guidance:

Motor oil is the single most important element in keeping your engine healthy . Some independent specialists recommend changing synthetic motor oil every 5,000 miles for optimal engine protection . More frequent changes are advisable if you regularly engage in aggressive or spirited driving, operate in dusty conditions, or make frequent short trips. Always replace the oil filter at every oil change .

Brake Fluid Service

Brake fluid is a hydraulic fluid specially formulated to withstand the extreme pressures and temperatures of your braking system .

Fluid Specification:

• BMW-approved brake fluid meeting DOT4 specification

Conservative Owner Guidance:

Brake fluid should be changed every time you service your brakes . Check your owner's manual for your vehicle's particular brake fluid specifications .

Spark Plug Service

Spark plugs are used to ignite the fuel-air mixture in the engine's combustion chamber . BMW service guidelines indicate spark plug replacement at 60,000 miles .

Service Detail:

The N55 engine uses high-performance spark plugs. Keeping your spark plugs fresh is a very important part of keeping your car in top shape . Check for abnormal pitting or charred plug ends when replacing .

Fuel Filter Service

Fuel filters are typically changed every 20,000 to 40,000 miles as part of the BMW maintenance schedule .

Wheel Bearing Maintenance

Wheel bearing grease lubricates the bearings that support the weight and heat generated by the spinning of the wheels . Some references recommend cleaning and repacking wheel bearings once a year as preventive maintenance .

BMW Maintenance Program Coverage

The 2017 BMW 640i Convertible was covered by BMW Ultimate Care, offering free scheduled maintenance during the first 3 years or 36,000 miles of ownership . The vehicles carry a standard 4 year/50,000-mile warranty .

BMW Ultimate Care includes:

• Engine oil and engine filter changes
• Brake fluid changes
• Spark plug changes
• BMW TeleService which "phones home" to BMW when your vehicle needs service

For owners who intend to keep their car for longer than the term of a lease, BMW offers Ultimate Care+ extended maintenance plans available in various levels extending coverage all the way out to 7 years/125,000 miles .

Long-Term Ownership Outlook

The estimated cost of maintenance increases significantly in the fifth year of ownership as major service items become due . With proper and diligent maintenance, the 2017 BMW 640i Convertible can achieve high mileage. Staying on track with routine service appointments helps maintain performance, safety, and resale value.