2017 Bentley Continental Supersports Convertible Service Schedule & Maintenance Guide

The 2017 Bentley Continental Supersports Convertible represents the pinnacle of open-air grand touring performance. As the most powerful Bentley ever produced at the time of its introduction, it is powered by a twin-turbocharged 6.0-liter W12 engine producing 700 horsepower and 750 lb-ft of torque, enabling a 0–60 mph sprint of just 3.5 seconds . With a 6-speed automatic transmission and permanent all-wheel drive, this hand-built convertible is a rare and significant motorcar that demands meticulous, specialist-led maintenance to preserve its performance, reliability, and substantial investment value.

Key Takeaways

• Primary Service Interval: Bentley requires scheduled maintenance once a year or every 10,000 miles (approximately 16,000 km), whichever comes first .
• Factory Warranty: New 2017 models came with a 3-year/unlimited mileage basic and powertrain warranty, plus a 1-year/10,000-mile maintenance warranty covering the first scheduled service .
• Engine & Performance: The Supersports Convertible is powered by a twin-turbocharged 6.0L W12 producing 700 hp and 750 lb-ft of torque, paired with a 6-speed automatic transmission and all-wheel drive .
• Spark Plugs: The 6.0L W12 requires a full set of 12 spark plugs. For the 2017+ Supersports, the correct spark plug part number is 07C905600, though some aftermarket sources list 0P2905601-A for certain 2017+ Bentley V8 models .
• Service Indicator: Standard equipment includes a service interval warning on the instrument cluster .
• Service Documentation: The official instruction manual for the 2017+ Continental Supersports Convertible carries part number 390 012 775 EC or 390 012 777 EC, with other variants available .

Factory Recommended Service Schedule

Primary Service Interval

Bentley's official service guidelines are straightforward: once a year, or every 10,000 miles, whichever comes first . The first year of Bentley service is complimentary for the original owner .

Annual / 10,000-Mile Service Contents

At each scheduled visit, the following baseline items are recommended:

• Engine Oil & Filter: Replaced with Bentley-specification fully synthetic oil .
• Tire Rotation: All four tires rotated for even wear .
• Cabin Pollen Filter: Replaced .
• Windshield Wipers: Replaced as needed .
• Key Fob Battery: Replaced .
• Brake System: Comprehensive inspection of brake pads and discs .
• Fluid Levels: All vehicle systems checked and topped up .
• Leakage Inspection: Visual inspection for fluid leaks .
• Suspension: Comprehensive inspection of all components, including the adjustable air suspension with electronically controlled dampers .

Following the vehicle inspection, owners are informed of any components not meeting specification, at which point they can approve any necessary repairs .

Service Indicator

The 2017 Continental Supersports Convertible is equipped with a standard service interval warning system on the instrument cluster . This system activates either by time or mileage, whichever occurs first.

Factory Warranty Coverage

Every new 2017 Bentley Continental Supersports Convertible came with comprehensive warranty coverage :

Original owners can extend the factory warranty by two additional years, a feature transferable to a private buyer with unlimited mileage and claims value . Bentley also offers a Certified Pre-Owned warranty program following a 180-point inspection, providing coverage for a minimum of one year with no mileage restrictions .

Engine Oil Change Guidance

Oil Specifications

The 6.0L twin-turbo W12 engine in the Supersports Convertible requires high-quality fully synthetic oil meeting Bentley's factory standards . Regular synthetic oil and filter changes are the single most important maintenance item for preserving engine life. A documented example of a low-mileage Supersports Convertible (approximately 26,000 miles) had an oil change performed in June 2024 as part of routine maintenance .

Oil Change Interval

• Factory recommendation: Every 12 months or 10,000 miles .
• Conservative owner guidance: Never exceed 12 months for an oil change, even if the mileage is low, as synthetic oil can degrade over time. For vehicles driven primarily in extreme climates or for short urban journeys, many specialists recommend more frequent changes.

Spark Plug Timing

Replacement Interval

The 2017 Continental Supersports Convertible uses a full set of 12 spark plugs (one per cylinder). For the 2017+ Supersports, the correct OEM spark plug part number is 07C905600 . Some parts sources also list 0P2905601-A for certain Bentley models from 2017 to 2023, though this is more commonly associated with V8 engines .

Documented maintenance on a comparable 2018 Supersports Convertible shows the spark plugs and ignition coils being replaced in 2022 .

Regular inspection and replacement at the recommended interval is essential for maintaining optimal ignition performance, fuel efficiency, and engine health . Fouled spark plugs can cause decreased fuel economy, increased emissions, engine misfires, rough idle, and difficulty starting the car .

Transmission Service

Transmission Specifications

The 2017 Continental Supersports Convertible is equipped with a 6-speed automatic transaxle with sequential shift control . The vehicle features permanent all-wheel drive.

Service Considerations

For 2017+ Supersports models, there are transmission-specific parts available, including gasket sets suitable for the Supersports . Given the high-performance nature of the Supersports, a full transmission fluid and filter service should be considered at higher mileages. If shifting becomes rough, delayed, or is accompanied by unusual noises, have the transmission inspected immediately by a Bentley specialist.

Brake System

Carbon-Ceramic Brakes

The 2017 Continental Supersports Convertible features ceramic-composite brakes as standard equipment, a significant upgrade over conventional braking systems . These high-performance components provide exceptional stopping power but require specialist attention and can be expensive to replace.

Brake Fluid

• Inspection: Brake fluid level and condition should be inspected at every scheduled service .
• Replacement: A conservative approach is to flush and replace brake fluid every 2 years, as brake fluid is hygroscopic and absorbs moisture over time, degrading braking performance.

Service Documentation

Maintaining a comprehensive service history is critical for preserving the vehicle's resale value . The official instruction manual for the 2017+ Continental Supersports Convertible carries part numbers 390 012 775 EC and 390 012 777 EC, among other variants . These manuals provide comprehensive guidance on the operation, maintenance, and troubleshooting of these vehicles, and proper consultation is crucial for maintaining performance and longevity .

Convertible Top Maintenance

The 2017 Continental Supersports Convertible features a power-operated black soft top . Documented maintenance on a comparable example shows the convertible top being repaired in August 2022, highlighting the need for specialist attention to this sophisticated mechanical and hydraulic system .

Long-Term Ownership Considerations

The 2017 Bentley Continental Supersports Convertible rewards diligent and proactive maintenance. Key considerations for owners include:

• Specialist Care: Service should be performed by certified Bentley technicians or independent specialists with the right equipment and genuine parts. Specialist service centres use the latest Bentley diagnostic software for all model generations.
• Service Documentation: Maintaining a comprehensive service history is critical for preserving the vehicle's resale value .
• Driving Habits: The Supersports Convertible is a high-performance vehicle that benefits from regular use. For vehicles not used regularly, a trickle charger is recommended to maintain the advanced electrical systems.
• Battery Maintenance: A 12-volt battery condition check is recommended as part of routine service.
• Tire Maintenance: With its power and all-wheel-drive configuration, proper tire pressure and condition are essential for safety and performance.