2008 — 2013
6.0L W12 Twin-Turbo (449kW)
Petrol
Check the suspension air struts by putting the car in its highest and lowest settings. | Description: Listen for any audible hissing or a 'sagging' stance after the car has been parked for a few hours, as these air suspension systems can experience seal fatigue in older units.
Observe the cooling fans and temperature gauge during idle. | Description: The W12 engine produces significant heat; ensuring the cooling system is performing optimally is essential to prevent thermal stress on the complex auxiliary components surrounding the block.
Evaluate gear changes by performing low-speed, stop-start driving. | Description: While the ZF 6-speed automatic is robust, jerky shifts may indicate that the transmission fluid or the mechatronic unit might benefit from a service to ensure the torque of the W12 is delivered smoothly.
Operate every interior electronic control module, including the seat massagers and navigation screen. | Description: These vehicles are packed with sophisticated, period-specific electronics; it is wise to verify that all cabin features are responsive, as diagnostics can be time-consuming for these systems.
Consider a major fluid refresh including differential and transmission oils.
Keep an eye on the condition of the ignition coils and spark plugs, as the W12 configuration can be sensitive to ignition timing.
Typically the time to inspect secondary water pumps and vacuum lines for signs of perishing due to engine bay heat.
Verify the full service history, ideally prioritizing stamps from Bentley specialists.
Inspect the battery health, as these cars are known to be sensitive to low voltage during startup.
Check the tread wear patterns on all four tyres to ensure the AWD system is working in harmony.
Ensure the air conditioning refrigerant has been topped up, as the large cabin volume relies heavily on a healthy system.
Review brake pad and rotor thickness, noting that the Speed model uses substantial hardware.
Estimated repair costs if issues arise
If this component needs attention in the future, it is a significant job involving the removal of the wheel assembly. You might eventually need to budget for this if you notice the car struggling to maintain its ride height.
In cars of this age, it is common to consider that ignition coils may eventually fail. Replacing them is a labor-intensive process due to the engine packaging, so it is helpful to plan for this as a preventative maintenance step.
Given the performance capabilities of the Speed model, the brakes do a lot of heavy lifting. Depending on the car's history, you might eventually need to budget for a full set of performance rotors and pads.
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Disclaimer: This report is generated with the assistance of AI analysis based on verified automotive data. While we strive for 100% accuracy, enthusiasts should always conduct physical inspections and consult service records. View Full Disclaimer