2009-2016 Rolls-Royce Ghost, Wraith & Dawn Transmission Mount: Diagnosing Drivetrain Vibrations and Clunks
This guide covers the symptoms, diagnosis, and replacement of the transmission mount for the Rolls-Royce Ghost, Wraith, and Dawn equipped with the 6.6L V12 engine.
- The primary symptoms of failure are new vibrations and clunking noises when shifting or accelerating.
- This mount (part no. 6782411) fits the 2009-14 Ghost, 2014-16 Wraith, and 2016 Dawn with the 6.6L V12.
- No recalls or TSBs are specifically associated with this part; failures are typically due to age and wear.
- When buying used, prioritize inspecting the rubber for cracks, sagging, and fluid contamination.
Symptoms of a Failing Transmission Mount
Due to the exceptional sound insulation in the Ghost, Wraith, and Dawn, the initial symptoms of a failing transmission mount may be more subtle than in other vehicles. You might feel them through the floor and seat before you hear them.
- Excessive Vibration: The most common symptom is an increase in vibration felt in the cabin, especially at idle, during acceleration, or when the transmission is put into gear. In a car engineered for near-silent operation, any new or unusual vibration is a significant red flag.
- Clunking or Thudding Noises: A distinct "clunk" or "thud" may be heard or felt when shifting from Park to Drive or Reverse, or during hard acceleration and braking. This sound is caused by the transmission moving excessively and making contact with other components because the worn mount is no longer holding it securely.
- A Feeling of Looseness: The vehicle's drivetrain may feel "loose" or disconnected, with a slight jerking motion on acceleration or deceleration. This indicates the transmission is shifting its position under torque.
- Harsh or Difficult Shifting: In more severe cases, a collapsed mount can cause the transmission to sit at an incorrect angle. This misalignment can interfere with the shifter linkage, leading to difficulty engaging gears or a rougher-than-normal shift quality.
Known Issues, TSBs, and Recalls
As of early 2026, there are no specific recalls, technical service bulletins (TSBs), or widespread documented issues from Rolls-Royce or the NHTSA regarding premature failure of the transmission mount on the 2009-2014 Ghost, 2014-2016 Wraith, or 2016 Dawn. Failures that do occur are typically the result of age, mileage, and the natural degradation of the rubber material. Fluid leaks (oil, coolant) dripping onto the mount can also accelerate the deterioration of the rubber.
Pro Tip: Vibrations in a Rolls-Royce can have many sources. Before condemning the transmission mount, it's wise to rule out more common issues like wheel/tire imbalance or driveshaft problems, which can present with similar symptoms.
🎬 Watch: Methods to help diagnose bad engine and transmission mountsBuying a Used Transmission Mount: What to Check
Purchasing a used OEM transmission mount can be a cost-effective option, provided you inspect it carefully. For a part focused on ride quality, a high-quality used OEM part is often superior to a new, cheap aftermarket alternative that may not have the correct damping properties.
- Verify the Part Number: Ensure the part is stamped with the correct OEM number, 6782411 or 22326782411. This mount is shared across the Ghost, Wraith, and Dawn models with the 6.6L V12.
- Inspect the Rubber Thoroughly: Look for any signs of cracking, splitting, or tearing in the rubber block. Pay close attention to the areas where the rubber is bonded to the metal frame.
- Check for Collapse or Sagging: Compare the used mount to photos of a new one. If the mount looks compressed, collapsed, or is sagging, it has lost its structural integrity and should be rejected.
- Look for Fluid Contamination: Check for any swelling, sponginess, or degradation of the rubber, which indicates it has been contaminated by oil, transmission fluid, or coolant. A fluid-soaked mount will fail quickly.
- Assess Mileage and Condition: Whenever possible, choose a part from a lower-mileage vehicle. While these mounts are designed to last, a part with 100,000 miles is near the end of its expected service life.
Replacement Overview and Difficulty
Replacing the transmission mount on these vehicles is a moderately difficult job that is feasible for an experienced DIY mechanic with the right tools. The process is similar to that on the related BMW 7-Series (F01) 🎬 See these helpful replacement tips for the BMW 7-Series platform and 5-Series (F10) platforms.
- Difficulty: 3 out of 5
- Estimated Time: 1.5 - 2.5 hours
- DIY Feasible: Yes, for experienced individuals.
General Steps:
- Safely raise and support the vehicle on jack stands or a lift.
- Remove underbody panels to gain access to the transmission crossmember.
- Support the transmission securely with a transmission jack or a pole jack. Do NOT support it by the transmission pan.
- Unbolt and remove the transmission crossmember. This will provide access to the mount itself.
- Unbolt the old transmission mount from the transmission.
- Install the new mount, ensuring it is correctly oriented.
- Reinstall the crossmember and tighten all bolts to the manufacturer's specified torque.
- Lower the transmission, remove the jack, and reinstall the underbody panels. 🎬 Watch: A step-by-step walkthrough of the transmission mount replacement
Warning: The engine and transmission must be properly supported at all times. Failure to do so can result in damage to other components, such as engine mounts, exhaust connections, or fluid lines.
Cost to Replace the Transmission Mount
Costs can vary significantly based on your location and whether you use a dealership, an independent specialist, or perform the work yourself. Labor rates for Rolls-Royce service are substantially higher than for standard vehicles.
| Part Type | Estimated Cost |
|---|---|
| New OEM (Dealer) | $250 - $400 |
| New Aftermarket | $100 - $200 |
| Used OEM | $75 - $150 |
| Shop Labor | $350 - $600 (estimated 1.5-2.5 hours at luxury specialist rates) |
Frequently Asked Questions (FAQ)
Can I drive my Rolls-Royce with a bad transmission mount?
It is not recommended. While the vehicle may be drivable for a short period, a failed mount puts significant stress on other drivetrain components, including the engine mounts, driveshaft, and transmission seals. In a worst-case scenario, severe movement could cause major damage, leading to a much more expensive repair.
Will a bad transmission mount cause a Check Engine Light?
It is possible, but not common. In some modern vehicles, severe vibrations from a failed mount can be detected by the engine control module (ECM) and may trigger a fault code. However, you will almost certainly notice the physical symptoms of vibration or noise long before a light appears.
Is this the same part as a BMW 7-Series transmission mount?
While the Rolls-Royce Ghost is based on the BMW 7-Series (F01) platform, and the mounts appear visually similar, it is critical to use the specific Rolls-Royce OEM part number 6782411. The rubber density and damping characteristics are specifically tuned for the weight and harmonics of the Rolls-Royce V12 powertrain to ensure proper vibration isolation. Using a standard BMW part may result in a noticeable increase in cabin vibration.
How long does a transmission mount last on a Ghost, Wraith, or Dawn?
A typical factory transmission mount can last anywhere from 70,000 to 100,000 miles. However, lifespan can be affected by driving habits, road conditions, and exposure to heat and leaking fluids. Given the heavy weight of these vehicles, the mounts are under considerable stress.
Helpful Videos
Technical Specifications
OEM Part Numbers: 6782411 22326782411
Hydraulic or solid rubber construction designed to support the ZF 8-speed automatic transmission and dampen vibrations from the N74 6.6L V12 engine.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Rolls-Royce Dawn:
- Rolls-Royce Ghost:
- Rolls-Royce Wraith: