2016 BMW 640i xDrive Coupe Preventive Maintenance & Service Schedule

Key Takeaways

• The 2016 BMW 640i xDrive Coupe (F13 chassis) is powered by the N55 3.0L turbocharged inline-six engine and features xDrive all-wheel drive.
• BMW's Condition Based Service (CBS) system uses sensors and driving data to calculate maintenance needs based on actual driving conditions rather than fixed intervals.
• 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 N55 engine has an oil capacity of approximately 6.5 liters .
• A conservative synthetic oil change interval recommended by independent specialists is 5,000 miles for optimal engine longevity .
• The vehicle uses DOT4 specification brake fluid; brake fluid should be changed whenever the brake system is serviced .

Understanding BMW's Condition Based Service (CBS) System

The 2016 BMW 640i xDrive Coupe 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.

Service information on required maintenance is continuously stored in the vehicle's remote key fob. Your service center will read out this data and suggest the appropriate service procedures for your vehicle. The vehicle includes a service interval warning in the instrument cluster, which notifies the driver when maintenance is due.

Important Note: Storage periods during which the vehicle battery was disconnected are not taken into account by the CBS system. If this occurs, have a service center update the time-dependent maintenance procedures, such as checking brake fluid and, if necessary, changing the engine oil.

Engine Specifications & Capacities

The 2016 BMW 640i xDrive Coupe is equipped with the N55 3.0L turbocharged inline-six engine (engine codes N55B30/N55B30O0/N55B30A) .

OEM Factory Maintenance Schedule

The following maintenance intervals represent the key factory-recommended milestones for the 2016 BMW 640i xDrive Coupe. Exact intervals are determined by the vehicle's CBS system based on driving conditions.

60,000 Mile Service

• Replace Spark Plugs
• Engine Air Filter Replacement (as indicated by CBS)
• Cabin Microfilter Replacement (as indicated by CBS)

120,000 Mile Service

• Replace Spark Plugs
• Replace Oxygen Sensors
• Brake Fluid Flush (if not performed within the last 2 years)
• Engine Air Filter Replacement (as indicated by CBS)

150,000 Mile Service

• Replace Oxygen Sensors

Engine Oil and Filter Change

Motor oil is the single most important element in keeping your engine healthy. The 2016 640i xDrive Coupe uses the N55 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 depending on driving conditions.

Oil Specifications:

• BMW-approved synthetic oil meeting BMW specifications
• The specific viscosity should be selected based on climate and driving conditions as specified in your owner's manual

Conservative Owner Guidance: A conservative approach is to change synthetic motor oil every 5,000 miles for optimal engine protection . Always replace the oil filter at every oil change. More frequent changes are advisable if you regularly haul heavy loads, drive in dusty areas, or frequently engage in aggressive or spirited driving.

Signs Your Vehicle May Need an Oil Change Sooner:

• Check engine/oil change light is illuminated
• Knocking sounds from the engine
• Oil smell inside the vehicle
• Excess amount of vehicle exhaust

Spark Plug Service

The 2016 BMW 640i xDrive Coupe 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 .

Conservative Owner Guidance: Some service providers recommend replacing spark plugs on time or about every 30,000 miles . Spark plugs are small but vital—they provide the electric spark that your car needs to start. Without that spark, your car won't start .

Spark Plug Inspection: 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.

Brake Fluid Service

The 2016 BMW 640i xDrive Coupe uses DOT4 specification brake fluid . Brake fluid is a hydraulic fluid specially formulated to withstand the extreme pressures and temperatures of your braking system .

OEM Guidance: Brake fluid should be changed every time you service your brakes . Different brake systems require different brake fluid formulations, so always check your owner's manual for your vehicle's particular brake fluid specifications .

Conservative Owner Guidance: Brake fluid is hygroscopic—it absorbs moisture from the atmosphere over time, which lowers its boiling point and compromises braking performance. A conservative approach is to flush and replace brake fluid every 2 years regardless of mileage.

Brake System Service

BMW generally recommends that front and rear brakes are removed and serviced at least once every 12,000 miles or 12 months, including inspecting the parking brake.

Signs of Brake Issues:

• Unusual noises (squealing or grinding)
• Vibration or pulsation in the steering wheel or pedal
• A burning smell coming from the tires
• An illuminated brake dashboard warning light

Differential Fluid Service (xDrive)

The xDrive all-wheel-drive system includes both front and rear differentials. Differential oil should be checked for level and changed as per the owner's manual recommendation. For vehicles with standard differentials, fully synthetic gear oil is recommended.

xDrive Transfer Case Service

The xDrive transfer case requires periodic fluid service using BMW-approved transfer case fluid. Regular fluid service is critical for proper xDrive operation and system longevity.

Battery Care

Batteries generally need to be replaced every three to five years. Short trips and extreme temperatures can shorten battery life. The battery registration process should be performed when replacing the battery to ensure proper charging characteristics.

Wheel Alignment

It is generally recommended to have wheel alignment checked approximately every 6,000 miles or 6 months. Signs that alignment may need attention include:

• The car pulling to one side
• Rapid or uneven tire wear
• A steering wheel that sits crooked while driving straight
• Tires that squeal frequently

Engine Tune-Up Signs

Pay attention to warning signs that your engine may need attention:

• Stalling or shaky idling when stopped
• Diminished fuel economy
• Knocking noises in the engine
• A lit check engine light

BMW Maintenance Program Coverage

The 2016 BMW 640i xDrive Coupe was covered by BMW's standard maintenance program from the original in-service date. For vehicles beyond this coverage, owners should plan for out-of-pocket maintenance.

Long-Term Ownership Outlook

With proper and diligent maintenance, a 2016 BMW 640i xDrive Coupe has a good chance of hitting 200,000 miles or more . Staying on track with routine service appointments can help your 640i xDrive Coupe 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.