Bentley Continental GT 4.0 V8 Mk2

The Continental GT uses a Continuous Dampening Control (CDC) air suspension system that is widely reported as the most common and expensive failure point. Struts typically begin leaking after 60,000-100,000 km, often presenting as one corner sitting noticeably lower than the others, particularly overnight. OEM struts cost approximately €1,200-1,500 each, and repairs must be done in pairs (front or rear). A pair of front struts with labor runs approximately €2,500-4,000 at an independent specialist, while a full four-corner replacement at a Bentley dealer can exceed €8,000. Aftermarket rebuilt struts from companies like Arnott can reduce parts cost by up to 50% with a lifetime warranty. Parking with the suspension in its lowest setting can reduce stress on the air springs and extend their life.

This is a known issue across VW Group 4.0T engines (Audi S6, S7, S8, and Bentley). A small mesh screen inside the turbo oil feed line gradually becomes blocked with debris, restricting oil flow to the turbos. If the turbos run without sufficient lubrication, the impellers can disintegrate and send metal fragments into the engine, causing catastrophic damage. An Audi TSB (204640) was issued with an updated part. Incidence is reported at under 4% of Bentley V8 models, but the consequences are severe. The preventive fix involves installing an aftermarket external oil screen kit, which costs approximately €500-800 with labor. If turbos have already failed, replacement runs €3,000-7,000 at an independent specialist. Regular oil changes with high-quality synthetic oil at short intervals (every 8,000-10,000 km) significantly reduces the risk.

The front upper control arm bushes are a well-documented weak point across all Continental GT generations. The inner bushes degrade over time due to the weight of the car and road conditions, producing audible clunking over bumps and vague steering response. This is a wear item more than a defect, but the rate of degradation is notably faster than comparable luxury cars. A complete upper and lower bush kit (10 bushes) costs approximately €400-500 for parts. Labor at an independent specialist adds approximately €400-1,000 depending on what other suspension work is done at the same time. Replacement is typically needed between 60,000-100,000 km.

The 4.0 V8 uses sophisticated hydraulic engine mounts that absorb engine vibrations and prevent movement during acceleration and braking. These mounts can leak their internal hydraulic fluid over time, which manifests as increased vibration at idle and noticeable clunking when the gearbox shifts. The failure does not trigger any warning lights, making it difficult to diagnose without physical inspection. Replacement is rated 5/5 difficulty, requiring an engine support tool, and should always be done in pairs. Parts cost approximately €200-400 for a pair, but labor is significant due to accessibility. Total job at an independent specialist typically runs €1,200-2,500.

Radiator corrosion is common on Continental GTs as the cars age, particularly at the base where road debris and leaves accumulate. The corrosion eventually causes leaks that can lead to overheating if not caught early. A genuine Bentley radiator pack costs approximately €900-1,000 and comes with new hoses. At an independent specialist, expect approximately €1,500-2,000 for parts and labor for a straightforward replacement. At a Bentley dealer, the full job including labor can reach €3,000-3,500. Regular inspection of the radiator area and clearing debris from the base helps slow corrosion.

Multiple recalls have been issued for wiring loom issues on the Continental GT. In 2015, 3,642 vehicles were recalled for electrical short circuit risk, and in 2019, 802 vehicles were recalled specifically for wiring looms that could become trapped or snagged. Symptoms can range from intermittent warning lights to hazard light and demister failures. In severe cases, chafed wiring can create a fire risk. Diagnosis typically requires Bentley-specific diagnostic equipment. Repair costs depend on the extent of the damage and the location of the affected loom. Simple repairs may cost €500-800, while extensive rewiring or harness replacement can reach €2,000-2,500.

The third brake light failure is one of the most common and consistently reported issues on the Continental GT. The LED strip integrated into the rear screen surround burns out, triggering a dashboard warning. Official replacement requires removing the rear windscreen, with a genuine LED strip costing approximately €500. Independent specialists can sometimes source aftermarket LED strips for €100-200, and some owners have developed DIY workarounds using adhesive LED strips for as little as €15-20. While not a safety-critical repair, the persistent dashboard warning is annoying. The official repair carries risk of damaging the rear windscreen if not done carefully.

The Continental GT's power windows use integrated motor-ECU units that cannot be repaired separately. When the motor fails, it typically announces itself with a hissing sound before the window stops moving entirely. Because each window motor has its own integrated ECU, the entire unit must be replaced. Parts cost approximately €300-500 per window, with labor adding €200-500 depending on the door and workshop. This issue affects both the Mk1 and Mk2 generations.