2016 BMW 640i Convertible Service Requirements & Maintenance Schedule

Key Takeaways

• The 2016 BMW 640i Convertible (F12 chassis) is powered by the N55 3.0L turbocharged inline-six engine, with an oil capacity of 6.5 liters .
• BMW utilizes a Condition Based Service (CBS) system that calculates maintenance needs based on actual driving conditions rather than fixed intervals, with service data stored in the vehicle's remote key fob .
• Major periodic service items should generally be performed every 2 years or after 30,000 kilometers (approximately 18,600 miles) .
• A conservative synthetic oil change interval is recommended every 5,000 miles by independent specialists to maximize engine longevity .
• The vehicle uses BMW DOT4 Low Viscosity brake fluid and Bosch spark plugs for its N55 engine .
• The 2016 model year benefited from BMW's maintenance program, which generally covered 3 years or 36,000 miles of scheduled maintenance from the original in-service date .

Understanding BMW's Condition Based Service (CBS) System

The 2016 BMW 640i Convertible utilizes the BMW Condition Based Service (CBS) system. Unlike traditional fixed-interval maintenance schedules, CBS uses sensors and special algorithms that take into account the driving conditions of your vehicle to determine when maintenance is required . The system adapts the amount of maintenance to your specific user profile .

Service Data in the Remote Control: Information on the required maintenance is continuously stored in the remote control . Your service center will read out this data and suggest the right array of service procedures for your vehicle . Therefore, hand your service specialist the remote control with which the vehicle was driven most recently .

Storage Periods: Storage periods during which the vehicle battery was disconnected are not taken into account . If this occurs, have a service center update the time-dependent maintenance procedures, such as checking brake fluid and, if needed, changing the engine oil and the microfilter/activated-charcoal filter .

OEM Factory Maintenance Schedule

For the 2016 BMW 640i Convertible, the maintenance schedule is sensor-driven and centers around the CBS system. Major periodic service is generally recommended every 2 years or after 30,000 kilometers (approximately 18,600 miles) .

Engine Oil and Filter Change

The 2016 640i Convertible uses the N55 3.0L turbocharged inline-six engine, with an oil capacity of 6.5 liters . BMW's CBS system will indicate when an oil service is due, with typical intervals around 10,000 miles or 12 months depending on driving conditions.

Conservative Owner Guidance: Motor oil is the single most important element in keeping your engine healthy . Independent specialists, such as Pelican Parts, recommend changing your synthetic motor oil every 5,000 miles for optimal engine protection . Always replace your filter when changing your oil . Different engines and climates require specific oil viscosities; be sure to refer to your owner's manual for the type and viscosity of oil required for your car .

Brake Fluid Service

Brake fluid is a hydraulic fluid specially formulated to withstand the extreme pressures and temperatures of your braking system . Brake fluid should be changed every time you service your brakes . Different brake systems require different brake fluid formulations . Check your owner's manual for your vehicle's particular brake fluid specifications .

Fluid Specification: The 2016 BMW 640i Convertible uses BMW DOT4 Low Viscosity brake fluid . DOT4 is the recommended specification for the F12 chassis .

Conservative Owner Guidance: Brake fluid should be flushed and replaced when indicated by the CBS system, which is typically time-based. A conservative approach is to replace it every 2 years, as brake fluid is hygroscopic and absorbs moisture over time, which can compromise braking performance.

Spark Plug Service

Spark plugs are used to ignite the fuel-air mixture in the engine's combustion chamber . 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 . Any strange variations among plugs are a sure indicator that something is wrong with a particular cylinder .

OEM Parts: The 2016 BMW 640i Convertible uses Bosch spark plugs as original equipment . Bosch is a leading global supplier of automotive components and systems, known for high-quality products and a strong reputation for reliability, durability, and performance .

Differential Fluid Service

Differential oil lubricates and assists in the heat dissipation of the differential . It should be checked for level and changed as per the owner's manual recommendation .

Owner Guidance: The 2016 BMW 640i Convertible is available in both rear-wheel-drive and xDrive (all-wheel-drive) configurations . Differential fluid requirements may differ between these drivetrains. The xDrive model includes front and rear differentials, while the rear-wheel-drive model has only a rear differential. For vehicles with standard differentials, fully synthetic gear oil is typically recommended .

Common Long-Term Ownership Considerations

The 2016 BMW 640i Convertible features a service interval warning system in the instrument cluster, which will notify the driver when maintenance is approaching or due . Staying on track with routine service appointments helps maintain performance, safety, and resale value.

The estimated cost of maintenance increases as the vehicle ages, particularly in the fifth year of ownership when major service items become due. With proper and diligent maintenance, the 2016 BMW 640i Convertible can achieve high mileage. Regular oil level monitoring through the iDrive system is important for turbocharged engines like the N55.