2016 BMW 650i Convertible Complete Maintenance Schedule & Service Guide

Key Takeaways

• The 2016 BMW 650i Convertible (F12 chassis) is available in both rear-wheel-drive and xDrive all-wheel-drive configurations and is powered by a twin-turbo V8 engine .
• BMW utilizes a Condition Based Service (CBS) system that monitors driving conditions and calculates maintenance needs based on actual vehicle use, not fixed intervals .
• Synthetic oil changes are recommended every 5,000 miles by independent specialists for optimal engine protection .
• Brake fluid should be changed every 2 years regardless of mileage .
• The vehicle came with BMW's Maintenance Program for 48 months or 50,000 miles, covering factory-recommended maintenance .
• Major periodic service is generally recommended every 2 years or after 30,000 kilometers (approximately 18,600 miles) .
• Projected maintenance costs increase significantly in the fifth year of ownership, with an estimated $2,780 for Year 5 .

Understanding BMW's Condition Based Service (CBS) System

The 2016 BMW 650i Convertible utilizes the BMW Condition Based Service (CBS) system. Unlike traditional fixed-interval maintenance, CBS uses sensors and sophisticated algorithms to compute optimal maintenance requirements based on actual driving conditions .

The system takes into account factors such as:

• Engine speed variations (high or low RPM operation)
• Trip length (short versus long-distance driving)
• Condition of engine oil and brake pads

CBS-monitored service items include:

• Engine oil
• Brake pads (front and rear separately)
• Microfilter
• Brake fluid
• Spark plugs
• Vehicle check

Service data is stored in the remote key fob. Your BMW Service Advisor can read this data to propose the precise maintenance procedures needed for your vehicle .

Key Time-Based Intervals:

• Major periodic service: Generally every 2 years or after 30,000 kilometers (approximately 18,600 miles)
• Brake fluid: Recommended to be changed every 2 years
• Note: Time-based intervals should be followed regardless of mileage to ensure optimal safety and reliability.

BMW Maintenance Program Coverage

The 2016 BMW 650i Convertible was covered by a 48-month/50,000-mile BMW Maintenance Program from the original in-service date . This program covers all factory-recommended maintenance as determined by the CBS system, plus wear items like brake pads that exceed BMW wear limits .

Warranty Coverage:

• Basic warranty: 48 months/50,000 miles
• Powertrain warranty: 48 months/50,000 miles
• Corrosion perforation warranty: 144 months/unlimited miles
• Roadside assistance: 48 months/unlimited miles

The annual maintenance program costs are estimated as follows:

• Years 1-3: $0
• Year 4: $19
• Year 5: $2,780

For vehicles beyond the maintenance program coverage, owners should plan for out-of-pocket maintenance costs.

OEM Factory Maintenance Schedule

The following maintenance intervals represent factory-recommended milestones. Exact intervals are determined by the CBS system based on driving conditions.

Standard Operations During Maintenance

The maintenance schedule includes a comprehensive set of standard inspections, documented in BMW's technical information :

Engine Oil Service:

• Brief diagnostic test
• Verify Check Control messages
• Check indicator and warning lights
• Reset CBS display
• Change engine oil and oil filter (BMW recommends BMW High Performance 5W-30 Synthetic Oil)

Air Filter:

• After every 3rd engine oil change: Replace intake air cleaner air filter element
• Reduce replacement interval in dusty operating conditions

Engine Oil and Filter Change

BMW recommends BMW High Performance 5W-30 Synthetic Oil for the 650i Convertible .

Oil Specification:

• BMW Longlife-01 approved oil
• Viscosity: 5W-30 (all temperatures)
• Capacity: Refer to owner's manual for specific fill capacity

Independent Specialist Guidance: Motor oil is the single most important element in keeping your engine healthy. Many independent specialists recommend changing your synthetic motor oil every 5,000 miles for optimal engine protection . Always replace your oil filter when changing your oil.

Driving Conditions Warranting More Frequent Oil Changes:

• Regular hauling of heavy loads
• Driving in dusty areas
• Frequent short trips or low-speed driving
• Aggressive driving habits

Brake Fluid Service

Brake fluid is a critical safety component that should be changed every 2 years regardless of mileage . This is a time-based service item monitored by the CBS system.

Brake Fluid Specification: BMW-approved brake fluid.

Why Brake Fluid Needs Regular Replacement: Brake fluid is hygroscopic, meaning it absorbs moisture from the atmosphere over time. This reduces its boiling point and can compromise braking performance.

Brake System Service

Brake service is determined by the CBS system based on actual pad wear and driving conditions .

Inspection Items:

• Front brake pads: Replace brake pads and clean brake pad contact points in calipers
• Brake discs: Check surface and thickness; replace if necessary at extra charge
• Rear brake pads: Replace brake pads and clean brake pad contact points in calipers
• Parking brake: Check function, brake lining thickness, and adjust as needed

Spark Plug Service

The 2016 BMW 650i Convertible uses Bosch OE Specialty Platinum spark plugs as original equipment . The V8 engine requires 8 spark plugs .

Spark Plug Specifications :

• Thread Diameter: 12 mm
• Thread Pitch: 1.25 mm
• Reach: 26.5 mm (1.04")
• Hex Size: 14 mm
• Gap: 0.028" (0.7 mm)
• Torque Specs (Aluminum): 11-15 lb. ft.

Replacement Interval: Spark plug replacement is determined by the CBS system. Bosch platinum spark plugs are designed for extended service life with a platinum center electrode fused into the ceramic insulator .

Independent Guidance: Spark plugs are a critical component for engine performance and should be replaced when indicated by the CBS system . Check for abnormal pitting or charred plug ends when replacing—any variations among plugs indicate potential cylinder-specific issues .

Vehicle Check Service

The Vehicle Check is a comprehensive inspection performed at intervals determined by the CBS system and includes :

• 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 wipers and washer jet positions
• Body: check for corrosion
• Tires: check tread depth, wear pattern, outer condition, and inflation pressure
• 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 or obvious damage
• Rear-view mirrors
• Coolant: check fluid level and concentration
• Windshield washer and intensive cleaning system: check protection level and fluid level

Transmission and Differential Service

Transmission: The 2016 650i Convertible uses an automatic transmission requiring fluid compatible with Lifeguard 8 specifications . The transmission uses a specialized oil optimized for the specific transmission brand and model . Check your owner's manual for the specific fluid required.

Differential: Differential oil lubricates and assists in the heat dissipation of the differential and should be checked for level and changed as per the owner's manual recommendation . For vehicles with standard differentials, fully synthetic gear oil (such as BMW 75W-90 full synthetic final drive lubricant) is recommended.

N63 Engine-Specific Considerations

The 2016 650i Convertible is powered by a twin-turbo V8 engine from BMW's N63 engine family. Owners should be aware of the following considerations:

Valve Stem Seals: The N63 engine is known for valve stem seal wear over time, which can cause excessive oil consumption, smoke from the tailpipe, and spark plugs fouled with engine oil . If you notice these symptoms, have the vehicle inspected promptly.

Cooling System: The N63 engine generates significant heat. Cooling system components should be inspected regularly.

Long-Term Ownership Outlook

With proactive maintenance, a 2016 BMW 650i Convertible has the potential to 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 can help your 650i perform better, increase vehicle safety, 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.