Bentley Arnage Problems What To Know Before Buying
The Bentley Arnage is a British luxury saloon renowned for its hand-built quality, powerful V8 engine, and timeless design. Produced between 1998 and 2009, it offers old-world charm with modern engineering. But like any premium vehicle—especially those now decades old—it comes with its share of issues. This guide breaks down the most common Bentley Arnage problems to help you buy or maintain one with confidence.
1. Oil Leaks and Gasket Failures
Oil leaks are a common issue, especially in higher-mileage or poorly maintained models. Typical trouble spots include:
- Valve cover gaskets
- Rear main seals
- Turbo oil feed lines (on twin-turbo variants)
- Oil cooler hoses and fittings
Minor leaks can escalate into major engine problems if ignored. Early diagnosis and proper sealing are critical.
2. Suspension Wear and Ride Issues
The Arnage features a traditional luxury suspension system that wears over time. Common issues include:
- Worn suspension bushes
- Leaking rear shocks
- Noisy or clunky front suspension
- Uneven ride height or poor handling
Some later models feature electronically adjustable dampers, which can fail due to electrical faults or internal wear.
3. Cooling System Problems
Overheating can lead to major engine damage if not addressed early. Common cooling system faults include:
- Radiator or hose leaks
- Faulty water pump
- Thermostat failure
- Coolant temperature sensor errors
Regular coolant flushes and inspection are essential to keep the engine running cool.
4. Electrical and ECU Faults
The Bentley Arnage is fitted with extensive electronics and early computer systems, which can develop problems over time:
- Central locking or power window failures
- Dashboard warning lights
- Malfunctioning HVAC controls
- ECU or body control module faults
Electrical diagnostics often require specialist tools, and parts availability can be a challenge.
5. Brake System Wear
The Arnage is a heavy car with a powerful engine, which puts significant strain on the braking system. Common problems:
- Premature wear of pads and rotors
- Brake judder at high speeds
- ABS sensor or module failures
- Leaking brake calipers
Using quality parts and maintaining fluid levels is vital for safe braking performance.
6. Automatic Transmission Issues
The Arnage uses either a GM 4-speed (in early models) or a ZF 6-speed automatic gearbox. Potential issues include:
- Harsh or delayed gear shifts
- Fluid leaks
- Failure to engage gears properly
- Transmission fault codes
Routine fluid changes help extend gearbox life and improve drivability.
7. Fuel and Emissions System Faults
Some Arnage models experience issues with the fuel and emissions systems:
- O2 sensor failures
- Fuel pressure regulator problems
- Rough idle or hesitation
- Check engine lights due to EVAP leaks
These issues can reduce efficiency and affect emissions test results.
8. Interior Component Failures
While the interior is luxuriously appointed, it can show signs of wear or failure over time:
- Malfunctioning seat controls or memory settings
- Fading leather or cracking trim
- Delaminating wood veneers
- Inoperative switches (windows, seats, lights)
Using leather conditioners and inspecting electronics during a pre-purchase test drive is essential.
Is the Bentley Arnage Worth Buying?
Yes — for the right owner. The Bentley Arnage is a beautifully built, powerful luxury saloon with real presence. But it’s not a budget-friendly vehicle. Before buying, make sure:
- The car has a full and verifiable service history
- Suspension, transmission, brakes, and electronics are in good condition
- All repairs have been performed by Bentley specialists or experienced independent technicians
- The seller can demonstrate consistent upkeep
Pre-Purchase Inspection Recommended
Before buying any used Bentley Arnage, invest in a full vehicle inspection with a trusted service like CarExamer.com. Their mobile inspections include:
- 300+ mechanical and electrical checks
- Diagnostic scan of ECU, brakes, and electronics
- On-site suspension, engine, and gearbox inspection
- Same-day reporting across the UK
It’s the most effective way to avoid costly hidden problems.
Final Thoughts
The Bentley Arnage remains a powerful symbol of hand-built British luxury, offering an unmatched blend of elegance, performance, and comfort. But with age comes maintenance complexity. Understanding the most common Bentley Arnage problems helps you make an informed decision and protect your investment.
If buying used:
- Review the service history carefully
- Don’t ignore signs of fluid leaks or electrical faults
- Always book a professional inspection before committing
With the right care, the Arnage is not just a car — it’s a collectible classic with enduring appeal.
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