2009 Bentley Azure Service Requirements & Maintenance Schedule

Key Takeaways

• Factory Maintenance Interval: Bentley recommends service once a year or every 10,000 miles, whichever comes first. The first year of service was complimentary for original owners .
• Factory Warranty: Coverage included 36 months with unlimited mileage, plus free scheduled maintenance for 36 months or 30,000 miles .
• Engine & Drivetrain: Powered by a twin-turbocharged 6.75L V8 producing 450 hp and 645 lb-ft of torque, paired with a six-speed ZF automatic transmission and rear-wheel drive .
• Service Interval Warning: The vehicle comes standard with a service interval warning system to notify the driver when maintenance is due .
• Known TSBs: Technical Service Bulletins document common issues including engine misfires, battery condition checks, brake noise, and suspension/steering noise .

Introduction

The 2009 Bentley Azure represents the pinnacle of British luxury grand touring, combining the legendary 6.75L twin-turbocharged V8 with hand-crafted convertible elegance. As the final model year of the Azure line, this motorcar is a rare and significant example of Bentley's craftsmanship.

Proper service is essential to preserve the performance, reliability, and value of this exceptional vehicle. This guide compiles factory-recommended service requirements, known technical considerations, and conservative owner guidance for the 2009 Azure, which is now over 15 years old.

Factory Recommended Service Schedule

Service Interval

Bentley's service guidelines are straightforward: once a year, or every 10,000 miles, whichever comes first . 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

Each scheduled visit includes the following baseline items :

Following the vehicle check, owners are informed of any components that are not up to specification, at which time they can approve any necessary repairs .

Service Schedule Progression

Based on established Bentley service patterns, the 2009 Azure's service schedule typically progresses in a rotating series of service types. The 2nd annual service is generally considered an intermediate service, while the 4th annual service is a major comprehensive service.

Factory Warranty Coverage

Every new 2009 Bentley Azure came with a comprehensive warranty package :

Original owners could extend the factory warranty by an additional two years. This extension is transferable to private buyers and features unlimited mileage, unlimited claims value, and Bentley roadside assistance .

Engine Oil Change Guidance

The 2009 Bentley Azure is powered by a twin-turbocharged 6.75L V8 (family code L-Series with internal indexes such as L410/L410T) producing 450 horsepower and 645 lb-ft of torque .

Oil Specifications

Bentley recommends fully synthetic oil meeting ACEA A3/B4 and OEM specifications such as VW 502 00 / 505 00 . Recommended viscosity includes:

• Preferred: 0W-40 or 5W-40 for active driving and warm climates
• Optional: 0W-30 or 5W-30 for moderate driving and cold climates
• Special use: 10W-60 only suitable in extreme heat or track use with shortened intervals

Oil Capacity

The oil capacity with filter ranges from approximately 8.5 to 10.5 liters, depending on the specific engine variant . The exact specification and capacity should be confirmed by VIN.

Oil Change Interval

• Factory recommendation: Annual or every 10,000 miles
• Conservative owner guidance: Given the vehicle's age and the engine's sensitivity to oil quality, specialists recommend shortening the interval for frequent short trips or hot climates

Important Oil Maintenance Notes

• The oil filter is a cartridge-type specific to the L-Series engine; the drain plug washer is one-time-use
• Allow the turbocharger to cool before shutting off the engine after active driving
• Do not overfill—both overfilling and underfilling can cause issues including excessive crankcase ventilation

Transmission Service

The 2009 Azure is rear-wheel drive and equipped with a six-speed ZF automatic transmission (typically 6HP26/6HP28, confirmed by VIN) .

Transmission Fluid

• Fluid Type: Only ZF Lifeguard 6 or equivalent fluid with explicit approval for the specific 6HP revision
• Capacity: Dry fill 9.0-10.0 liters; partial service (pan + filter) 4.0-6.0 liters

Service Notes

• The transmission filter may be integrated into the oil pan or a separate cassette element depending on revision—confirmed by VIN
• Pan bolts and gasket are one-time-use items
• Fluid level must be set within a specific temperature window
• Basic adaptation is required after service work

A documented service on a similar-era Bentley Azure at approximately 21,000 miles included replacement of the battery, radiator, transmission mounts, and transmission fluid .

Spark Plug Timing

Spark plugs are typically replaced during major service intervals, generally at 30,000-mile intervals for the 6.75L V8. Service records for similar Bentley models of this era show spark plug replacement often coinciding with major services and typically performed by Bentley specialists or main dealers .

The ignition system should be inspected for misfires, as engine misfires are a documented concern for this model (TSB 2051187.1 and 2051187.3) .

Coolant Service Timing

Coolant Type and Capacity

• Type: Carboxylate OAT antifreeze meeting G12++/G12evo/G13 specifications
• Mixture: 1:1 with distilled water
• Capacity: 12.0-18.0 liters total (partial change yields approximately 6.0-9.0 liters)

Service Notes

• Vacuum filling is mandatory to prevent air locks
• Refill level must be rechecked "cold" after 1-2 thermal cycles
• A documented service on a 2007 Azure (same generation) at approximately 21,000 miles included replacement of the radiator
• Keep the radiator package (including intercooler and condenser) clean—overheating impacts turbocharger and gasket life

Brake Fluid Recommendations

Fluid Type

Bentley specifies DOT 4 Low Viscosity brake fluid for stable ABS/ESP system operation .

Service Interval

• Replacement interval: Every 2 years
• Capacity: 1.0-1.5 liters for a full system flush

Brake Noise

Brake noise is a documented customer complaint for this model year (TSB 2052785.3/4) . The TSB provides guidance for diagnosing brake system noise complaints.

Power Steering and Hydraulic Systems

The Azure's power steering system uses central hydraulic fluid (CHF 11S/CHF 202, confirmed by VIN) .

Hydraulic System for Convertible Top

The power-folding soft top operates using a specialized hydraulic system, typically using CHF 11S/202 fluid . Service notes for this system include:

• Capacity: 1.0-1.5 liters
• Proper bleeding procedure must be followed to eliminate aeration
• Check for micro-leaks at fittings
• Assist the top when closing using the provided interior hand hold to prevent mechanism strain

Rear Differential Service

The rear final drive uses hypoid gear oil:

• Type: GL-5 75W-90 (80W-90 acceptable in hot climates for moderate driving)
• Capacity: 1.1-1.5 liters
• For limited-slip differentials, a friction modifier may be required—confirmed by VIN

Known Technical Service Bulletins (TSBs)

Several Technical Service Bulletins have been documented for the 2009 Bentley Azure. These highlight areas requiring particular attention during routine service :

Additional Maintenance Considerations

Battery Maintenance

The 2009 Azure requires proper battery maintenance. A TSB (2051562/5) provides specific test instructions for 12-volt battery warranty claims . The vehicle should be kept on a trickle charger if not used weekly to maintain battery health and prevent electrical system issues. A documented example shows replacement of the starter battery at approximately 11,000 miles as part of annual service .

Drive Belt

The engine drive belt should be inspected at every annual service and replaced as needed. A documented service on a 2009 Azure at approximately 11,000 miles included replacement of the drive belt .

Air Filters

The Azure uses multiple air filtration components :

• Engine air filter: Replacement as needed—confirmed by VIN
• Cabin pollen filter: Replaced as part of annual service
• Fuel filter: Replacement as needed—confirmed by VIN

High-Mileage Maintenance Planning

For 2009 Azure examples approaching or exceeding 75,000 miles:

1. Major Service: Comprehensive inspection including all service types
2. Coolant Flush: Complete system flush with fresh coolant
3. Brake Fluid Flush: Full hydraulic system flush
4. Transmission Service: Full fluid and filter service by a specialist
5. Spark Plugs: Replace if not done within the last 30,000 miles
6. Battery Inspection: Check condition and replace if showing signs of age
7. Air Suspension Inspection: Check for signs of leakage or degradation
8. Radiator Package: Inspect and clean the intercooler/condenser package

Long-Term Ownership Considerations

The 2009 Bentley Azure is a vehicle that rewards diligent maintenance. Key ownership considerations include:

• Engine Misfires: The engine is known to be susceptible to poor running and misfires (TSB 2051187.1/3). Regular maintenance and prompt attention to running issues are essential .
• Brake Noise: Brake noise is a documented area of concern (TSB 2052785.3). Regular brake inspection and proper diagnosis are essential .
• Battery Maintenance: Regular battery condition checks are recommended (TSB 2051562.4) .
• Cooling System: Keeping the radiator package clean is critical—overheating can severely impact turbocharger and head gasket life .
• Turbocharger Care: Allow the turbocharger to cool before engine shutdown after spirited driving .
• Specialist Care: Given the vehicle's complexity, using qualified specialists familiar with the Azure is strongly recommended.
• Documentation: Maintain a comprehensive service history to help preserve resale value.