2016 BMW 640i xDrive Convertible Complete Service & Maintenance Schedule

Key Takeaways

• The 2016 BMW 640i xDrive 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 .
• Important periodic services should generally be performed every 2 years or after 30,000 kilometers (approximately 18,600 miles) .
• Spark plugs are recommended for replacement at 60,000 miles, with a repeat service at 120,000 miles .
• Oxygen sensors are scheduled for replacement at 120,000 miles, with a repeat service at 150,000 miles .
• The vehicle uses DOT4 specification brake fluid ; brake fluid should be changed whenever the brake system is serviced .
• xDrive all-wheel-drive models have additional drivetrain components requiring service, including front and rear differentials .

Understanding BMW's Condition Based Service (CBS) System

The 2016 BMW 640i xDrive Convertible utilizes BMW's Condition Based Service (CBS) system. Unlike traditional fixed-interval maintenance schedules, CBS uses sensors and 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 driving profile, considering factors such as trip length, engine temperature, and driving style.

The vehicle includes a service interval warning in the instrument cluster . Important periodic services should generally be performed every 2 years or after 30,000 kilometers (approximately 18,600 miles) .

Engine Specifications

The 2016 BMW 640i xDrive Convertible is equipped with the N55 3.0L turbocharged inline-six engine (engine code N55B30/N55B30O0) .

OEM Factory Maintenance Schedule

The following maintenance intervals represent the recommended schedule for the 2016 BMW 640i xDrive Convertible. Exact intervals are determined by the vehicle's CBS system based on driving conditions .

Engine Oil and Filter Change

The 2016 640i xDrive Convertible uses the N55 3.0L turbocharged inline-six engine. BMW's CBS system will indicate when an oil service is due, with typical intervals determined by driving conditions. The engine has an oil capacity of 6.5 liters .

Oil Specifications:

• BMW-approved synthetic oil
• BMW LL-01 and LL-04 approved oils are recommended
• Refer to your owner's manual for the specific viscosity required for your climate

Conservative Owner Guidance:

Motor oil is the single most important element in keeping your engine healthy and helping it to enjoy a long life . Pelican Parts recommends changing your synthetic motor oil every 5,000 miles . 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 . The 2016 BMW 640i xDrive Convertible uses DOT4 specification brake fluid .

OEM Guidance:

Brake fluid should be changed every time you service your brakes . BMW also offers a low-viscosity formula ideal for extreme braking conditions . Check your owner's manual for your vehicle's particular brake fluid specifications .

Brake Fluid Specifications:

• DOT4 brake fluid meets the requirements for this vehicle
• Dry boiling point: 280°C (536°F); wet boiling point: 198°C (388°F)

Spark Plug Service

The 2016 BMW 640i xDrive Convertible uses Bosch spark plugs as original equipment . The N55 engine requires 6 spark plugs .

OEM Interval:

Spark plugs are scheduled for replacement at 60,000 miles, with a repeat service at 120,000 miles .

Owner Guidance:

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 .

Oxygen Sensor Service

OEM Interval:

Oxygen sensors are scheduled for replacement at 120,000 miles, with a repeat service at 150,000 miles . Oxygen sensors deteriorate on a mileage basis, and replacement helps maximize fuel economy and minimize exhaust pollution.

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 .

xDrive-Specific Note:

The xDrive all-wheel-drive system includes both front and rear differentials. Ensure both are serviced when differential fluid is due .

Fluid Specification:

Fully synthetic gear oil is recommended for vehicles with standard differentials . BMW 75W-90 full synthetic final drive lubricant is specially designed for use in all BMW final drives with conventional (non-limited slip) differentials.

Wheel Bearing Maintenance

Owner Guidance:

Wheel bearing grease lubricates the bearings that support the weight and heat generated by the spinning of the wheels . It's a good idea to clean and repack your bearings once a year as a preventive measure . High-temperature service grease is recommended for rolling bearings .

Ignition Coils

Ignition coils transform battery voltage into the high energy needed for each spark plug. A faulty ignition coil can mean an engine that has a hard time starting up or one that is mistimed when it needs the spark in the combustion chamber, which can reduce engine performance and cause undue wear and tear.

Owner Guidance:

Ignition coils are not typically considered a scheduled maintenance item but may require replacement if they fail.

Long-Term Ownership Outlook

With proactive maintenance, the 2016 BMW 640i xDrive Convertible has a good chance of achieving high mileage. The N55 engine is a reliable powerplant when properly maintained. Staying on track with routine service appointments can help your 640i xDrive Convertible perform better, keep you safer on the road, and help you avoid expensive repairs.

Regular maintenance is an investment that maintains the value and dependability of your car, extends its service life, and increases its resale value. Scheduled maintenance services can vary depending on driving conditions, climate, and other factors; however, recommended maintenance usually includes services like oil changes, tire rotations, brake pad replacement, filter changes, and fluid checks and exchanges.