What are the most common problems with the 2012 Rolls-Royce Ghost's air suspension system?

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Based on my research and experience with Rolls-Royce vehicles, here are the most common air suspension problems with the 2012 Rolls-Royce Ghost:

**1. Air Compressor Failure**
The air compressor is the heart of the system and often fails due to being overworked. When air springs develop leaks (see below), the compressor runs continuously trying to maintain ride height, eventually burning itself out. Symptoms include prolonged compressor noise, the vehicle sitting lower than normal, or error messages on the dashboard.

**2. Air Spring/Air Strut Leaks**
The rubber air springs (airbags) that replace traditional coil springs can develop tears or cracks over time, especially in the 2012 model year. This causes air to leak out, resulting in the vehicle sitting lower - particularly noticeable in the rear suspension. Many owners report waking up to find one corner or the entire rear end sagging overnight.

**3. Rear Suspension Sagging**
This is a particularly common issue with 2012 Ghosts where the rear suspension drops down significantly. The car may appear level when driving but settle overnight, or one corner may drop completely. This is often caused by leaking air springs but can also be due to valve block issues.

**4. Suspension Control Module Problems**
The sophisticated computer system that controls the air suspension can experience software glitches or electrical faults. Since the Ghost's system is so sensitive (it can detect a passenger moving from one side of the seat to the other), even minor sensor issues can cause system failures.

**5. Height Sensor Malfunctions**
The ride height sensors that monitor the vehicle's position can fail or become mis-calibrated, causing the system to incorrectly adjust the suspension.

**Warning Signs to Watch For:**
- Vehicle sitting lower than normal, especially overnight
- One corner or side of the car appearing lower
- Unusually bumpy ride quality
- Compressor running continuously or not at all
- "Active Suspension" warning lights on the dashboard
- Vehicle leaning to one side

**What This Means for Your Purchase:**
The 2012 Ghost is known for air suspension issues, so I'd recommend having any potential purchase inspected by a Rolls-Royce specialist. While these systems provide that signature "magic carpet ride," repairs can be expensive - air struts typically need replacement in pairs, and compressor replacement is labor-intensive.

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