2017 BMW 640i Coupe Complete Service & Maintenance Schedule

Key Takeaways

• The 2017 BMW 640i Coupe (F13 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 uses sensors and driving data to calculate maintenance needs based on actual driving conditions rather than fixed intervals .
• Spark plugs are due 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 .
• Brake fluid is recommended for replacement every 2 years regardless of mileage .
• Brake pads typically require replacement between 30,000 and 40,000 miles, with manufacturers recommending brake service at least every 12,000 miles or 12 months .

Understanding BMW's Condition Based Service (CBS) System

The 2017 BMW 640i Coupe utilizes BMW's 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, considering factors such as trip length, engine temperature, and driving style.

Service Data in the Remote Control: Information on required maintenance is continuously stored in the remote key fob . Your service center will read out this data and suggest the appropriate service procedures for your vehicle .

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 necessary, changing the engine oil and the microfilter/activated-charcoal filter .

OEM Factory Maintenance Schedule

The following maintenance intervals represent the recommended schedule for the 2017 BMW 640i Coupe with the N55 engine:

Engine Oil and Filter Change

The 2017 640i Coupe 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.

Oil Specifications:

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

Conservative Owner Guidance: Motor oil is the single most important element in keeping your engine healthy. More frequent oil changes are advisable if you regularly haul heavy loads, drive in dusty areas, or go long distances at low speeds . A conservative approach is to change synthetic motor oil every 5,000-7,500 miles for optimal engine protection. Always replace the oil filter at every oil change.

Brake Fluid Service

Brake fluid service is a critical safety item. For the 2017 BMW 640i Coupe, brake fluid replacement is recommended every 2 years regardless of mileage .

Fluid Specification: BMW-approved brake fluid meeting manufacturer specifications. The brake fluid should be checked and changed when indicated by the CBS system.

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 to maintain optimal braking performance.

Brake System Service

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

Brake Pad Life: The majority of brake pads last between 30,000 and 40,000 miles . Factors such as frequent highway driving and smooth braking can help brake pads last longer, while heavy loads and aggressive braking shorten their life .

Signs of Brake Issues:

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

Spark Plug Service

The N55 engine uses high-performance spark plugs to ignite the fuel-air mixture in the engine's combustion chamber. The 2017 BMW 640i Coupe uses Bosch spark plugs as original equipment .

Factory 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. Without the spark of electricity created by spark plugs, your engine doesn't have the combustion it needs to start . Some service providers recommend replacing spark plugs on time or about every 30,000 miles .

Part Reference: Genuine BMW spark plug part number for the 2017 640i is 12120032273 .

Oxygen Sensor Service

Factory 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.

Air Filter Service

The air filter change interval is typically with each second engine oil change according to BMW's maintenance system, with the exact interval determined by the CBS system .

High-Mileage Maintenance Considerations

For 2017 BMW 640i Coupe examples exceeding 60,000 miles, additional maintenance considerations become increasingly important.

Battery Care

Batteries generally need to be replaced every three to five years . Short trips and extreme temperatures can shorten battery life . If you keep driving on a battery that can't hold a charge, you run the risk of being stranded when your battery finally gives out .

Ignition Coils

Ignition coils are not typically considered a scheduled maintenance item but should be inspected when replacing spark plugs. They may require replacement if they fail, and should be replaced as a full set when individual coils fail.

Cooling System

The N55 engine uses a sophisticated cooling system with an electric water pump. Cooling system components should be inspected regularly as the vehicle ages.

BMW Maintenance Program Coverage

The 2017 BMW 640i Coupe 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

Long-Term Ownership Outlook

With proper and diligent maintenance, the 2017 BMW 640i Coupe can achieve high mileage. The N55 engine is a reliable powerplant when properly maintained. Staying on track with routine service appointments can help your 640i Coupe perform better, keep you safer on the road, and help you avoid expensive repairs .

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, or a lit check engine light .