2012 Bentley Continental Supersports Convertible Complete Maintenance Schedule & Service Guide

The 2012 Bentley Continental Supersports Convertible is a pinnacle of open-air grand touring performance. As one of the most powerful convertibles ever produced at the time, it is powered by a twin-turbocharged 6.0L W12 engine producing 621 horsepower and 590 lb-ft of torque, paired with a 6-speed automatic transmission and permanent all-wheel drive . With a limited production run and a 204 mph top speed, this hand-built motorcar demands meticulous maintenance to preserve its performance, reliability, and substantial investment value .

Key Takeaways

• Primary Service Interval: Bentley recommends scheduled maintenance once a year or every 10,000 miles, whichever comes first . This foundational requirement applies to the 2012 Continental Supersports Convertible.
• Engine & Performance: Powered by a twin-turbocharged 6.0L W12 producing 621 hp and 590 lb-ft of torque, paired with a 6-speed automatic transmission and all-wheel drive .
• Factory Warranty: New 2012 models came with a 3-year/unlimited mileage basic and powertrain warranty, plus a 3-year/30,000-mile free scheduled maintenance program .
• Engine Oil: The 6.0L W12 (engine code CKHA) has a basic oil fill capacity of 13.5 liters of high-quality fully synthetic oil .
• Service Manual: The official owner's manual for 2009-2011 Continental Supersports is available under part number 3W7 012 003 PN or 3W7 012 003 QB . For 2011+ Supersports Convertible, the instruction manual part number is 390 012 712 EC .
• Service Indicator: Standard equipment includes a service interval warning system on the instrument cluster .

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 . The vehicle is equipped with a service interval warning system on the instrument cluster that alerts the driver when scheduled maintenance is approaching .

Annual / 10,000-Mile Service Contents

At each scheduled visit, the following baseline items are typically performed :

• 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

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

Extended Service Items

Based on general Bentley service guidance for vehicles of this era, additional items should be addressed at specific intervals:

Factory Warranty Coverage

Every new 2012 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 2012 Continental Supersports Convertible's 6.0L twin-turbo W12 (engine code CKHA) requires high-quality fully synthetic oil . The basic fill capacity is 13.5 liters .

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 and Part Specifications

The 2012 Continental Supersports Convertible uses a full set of spark plugs. The 6.0L W12 engine requires 12 spark plugs.

Based on general Bentley service guidance, spark plugs should be replaced at 35,000-40,000 miles or 6 years, whichever occurs first, and thereafter every 40,000 miles or 6 years.

Symptoms of Fouled Spark Plugs

Fouled spark plugs can cause:

• Decreased fuel economy
• Increased emissions
• Engine misfires
• Rough idle
• Difficulty starting the car

Regular inspection and replacement at the recommended interval is essential for maintaining optimal ignition performance, fuel efficiency, and engine health.

Brake Fluid Service

Fluid Type and Service Interval

The 2012 Continental Supersports Convertible uses DOT-4 brake fluid.

• Inspection: Brake fluid level and condition should be inspected at every scheduled service.
• Replacement: Bentley recommends changing the brake fluid every 2 years regardless of mileage. Brake fluid is hygroscopic and absorbs moisture over time, which can degrade braking performance.

Transmission Service

Transmission Specifications

The 2012 Continental Supersports Convertible is equipped with a 6-speed automatic transmission and permanent all-wheel drive . The vehicle features a 40/60 rear-biased all-wheel drive system for optimized handling and performance .

Service Considerations

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 2012 Continental Supersports Convertible features standard lightweight carbon ceramic brakes offering superior durability and reduced brake fade in demanding conditions . These high-performance components provide exceptional stopping power but require specialist attention.

Brake Component Inspection

Brake pads and discs should be inspected at every service. Given the vehicle's power and weight, brake components may wear more quickly than on standard models. Regular inspection is essential to avoid costly damage to other braking components.

Service Documentation

Maintaining a comprehensive service history is critical for preserving the vehicle's resale value. The official owner's manual for 2009-2011 Continental Supersports is available under part numbers 3W7 012 003 PN or 3W7 012 003 QB . For 2011+ Continental Supersports Convertible, the instruction manual part number is 390 012 712 EC . These manuals provide comprehensive guidance on the operation, maintenance, and care of these vehicles, and regular consultation is crucial for maintaining performance and longevity .

Long-Term Ownership Considerations

The 2012 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.