2017 BMW 650i Convertible Service Schedule & Maintenance Guide

Key Takeaways

• The 2017 BMW 650i Convertible is powered by a turbocharged V8 engine from BMW's N63 family and comes with a 48-month/50,000-mile basic and powertrain warranty .
• BMW employs 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 service intervals include spark plug replacement at 100,000 miles, automatic transmission fluid at 100,000 miles, and brake fluid service as a time-based maintenance item .
• BMW recommends BMW High Performance 5W-30 Synthetic Oil for the 650i Convertible .
• The vehicle originally came 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 650i Convertible utilizes BMW's Condition Based Service (CBS) system. Sensors and sophisticated algorithms take even more detailed account of the various conditions of vehicle use, computing the actual optimum maintenance requirements based not only upon accumulated mileage but also taking into account important factors such as high or low engine speeds, short or long trip driving, and the condition of the engine oil and brake pads .

CBS-Monitored Service Items Include :

• Engine oil
• Brake pads (front and rear separately)
• Microfilter/activated-charcoal filter
• Brake fluid
• Spark plugs
• Vehicle check
• Required state inspection(s)

Service Data in the Remote Control: Your vehicle stores the information required for maintenance continuously in the remote control during driving . After accessing this data, your BMW Service Advisor can suggest precisely the right array of service procedures for your vehicle . When taking your vehicle in for service, give the BMW Service Advisor the remote control last used to drive it .

Important Note: Make sure the date is set correctly; otherwise, the effectiveness of CBS Condition Based Service is not ensured .

BMW Maintenance Program Coverage

The 2017 BMW 650i Convertible was covered by 36 months or 36,000 miles of scheduled maintenance from the original in-service date, with a standard 48-month/50,000-mile basic and powertrain warranty and 144-month/unlimited-mile corrosion perforation warranty . For vehicles beyond this coverage, owners should plan for out-of-pocket maintenance.

OEM Factory Maintenance Schedule

The following maintenance intervals represent key factory-recommended milestones for the 2017 BMW 650i Convertible. Exact intervals are determined by the vehicle's CBS system based on driving conditions.

Engine Oil and Filter Change

BMW recommends BMW High Performance 5W-30 Synthetic Oil for engine oil and filter changes . The CBS system determines the optimal oil change interval based on actual driving conditions.

Standard Operations During Oil Service Include :

• Brief diagnostic test
• Verify Check Control messages
• Check indicator and warning lights
• Reset CBS display
• Change the engine oil and oil filter

Air Filter Replacement: After every 3rd engine oil change, the intake air cleaner air filter element should be replaced (reduce replacement interval in dusty operating conditions) .

Conservative Owner Guidance: More frequent oil changes are advisable if you regularly haul heavy loads, drive in dusty areas, or drive at low speeds for long distances . In general, more frequent oil changes won't harm your BMW—each oil change is another chance to check and resolve other car issues, such as worn brake pads or tire treads .

Brake Fluid Service

Brake fluid service is a scheduled maintenance item determined by the CBS system . The brake fluid should be replaced at the interval indicated by the CBS system.

Fluid Specification: BMW-approved brake fluid .

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 at the interval specified by the CBS system.

Spark Plug Service

OEM Interval: Spark plugs are recommended for replacement at 100,000 miles .

Service Detail: The N63 V8 engine uses 8 spark plugs. Replacement of spark plugs is included as a scheduled maintenance item .

Automatic Transmission Service

OEM Interval: Automatic transmission fluid (ATF) replacement is recommended at 100,000 miles .

Service Detail: The 2017 650i Convertible uses an automatic transmission that requires periodic fluid service. BMW recommends replacing the ATF at 100,000-mile intervals .

Vehicle Check Service

The CBS system determines when a Vehicle Check is required . This comprehensive inspection includes :

Check Operations:

• Horn, headlight flasher, and hazard warning flashers
• Instrument and control lighting and heater/air-conditioning blower
• Lighting system: turn signals, back-up, license plate, interior, glovebox, flashlight, luggage area lights
• Safety belts: check condition and function
• Windshield wiper and washer jet positions
• Tires: check tread depth, wear pattern, outer condition, inflation pressure; correct if necessary
• Battery: check state of charge (magic eye) and charge if required
• Power steering reservoir: check fluid level
• SRS airbag units: visually inspect for torn covers, obvious damage, or attachment of stickers
• Rear-view mirrors
• Coolant: check fluid level and concentration
• Windshield washer and intensive cleaning system: check protection level and fluid level; top if necessary

Front and Rear Brake Service

The CBS system determines when front and rear brake pad replacement is required .

Brake Service Includes :

• Replace brake pads, clean brake pad contact points in calipers
• Brake discs: check surface and thickness; replace if necessary at extra charge
• Parking brake: check function

Microfilter Replacement

The ventilation microfilter replacement interval is determined by the CBS system . The microfilter/activated-charcoal filter is one of the monitored CBS service items .

N63 Engine-Specific Considerations

The 2017 650i Convertible is powered by a turbocharged V8 engine from BMW's N63 engine family. A known concern on N63 engines is valve stem seal wear, which can cause :

• Smoke from the tailpipe when starting or aggressively accelerating and decelerating the engine
• Excessive engine oil consumption
• Spark plugs fouled with engine oil

Diagnostic Note: If excessive oil consumption between services is the only complaint, a complete oil consumption test must be performed before replacing the valve seals . If the vehicle exhibits reproducible smoking from the tailpipe when hot, additional engine diagnostic steps (compression test, leak-down tests, inspection of crankcase ventilation lines) should be performed .

Long-Term Ownership Outlook

With proactive maintenance, a 2017 BMW 650i Convertible can achieve high mileage. The estimated cost of maintenance increases significantly in the fifth year of ownership as major service items become due . Staying on track with routine service appointments helps maintain performance, safety, and resale value.