Bentley Bentayga 2015–2021 Active Engine Mount Set 4M0199255BH / 4M0199256BH

Active Engine Mounts for Bentley Bentayga

Restore refined drivetrain isolation and engine stability with a premium active engine mount set for Bentley Bentayga applications using part references 4M0199255BH and 4M0199256BH. These mounts support the engine while controlling vibration and movement under acceleration, braking and changing engine load.

Materials & Construction

Each mount combines a high-strength cast metal support structure with a tuned elastomer isolation element and integrated active-mount mechanism. The rigid metal body carries engine weight and drivetrain load, while the internal damping structure is designed to absorb vibration before it reaches the chassis and cabin. Reinforced mounting points and precision-machined interfaces help maintain correct engine position under high torque.

What Active Engine Mounts Do

Engine mounts secure the powertrain to the vehicle while isolating vibration. Active mounts add controlled damping behavior to improve refinement across different engine speeds and driving conditions. A worn mount can contribute to excessive vibration, clunks during load changes, engine movement, harshness through the cabin or abnormal driveline feel.

Fitment & Part References

Left reference: 4M0199255BH. Right reference: 4M0199256BH. These references are used on Bentley Bentayga applications from approximately 2015–2021, including W12 configurations. Match the original mount part numbers and engine specification before ordering.

How to Replace

1. Secure the vehicle and support the engine with approved lifting or support equipment.
2. Remove the underbody panels and components required to access the engine mounts.
3. Disconnect any electrical connector associated with the active-mount system.
4. Support the engine weight before removing the mount fasteners.
5. Remove the worn mount and clean the chassis and engine-side mounting surfaces.
6. Install the replacement mount in the correct orientation and tighten all fasteners to the vehicle manufacturer’s service procedure.
7. Reconnect the active-mount electrical connection where applicable.
8. Repeat on the opposite side if replacing the pair, then verify engine position and check for abnormal vibration.

Benefits

Fresh active mounts help restore the Bentayga’s smooth idle quality, reduce unwanted vibration through the cabin, stabilize the engine under load and protect surrounding drivetrain components from excessive movement. Replacing both sides together provides the most consistent support and damping response.

FAQ

Which part number is the left side?
4M0199255BH.

Which part number is the right side?
4M0199256BH.

Can I buy one side only?
Yes. Left, right and complete-pair options are available.

What symptoms can worn engine mounts cause?
Cabin vibration, clunks during acceleration or gear changes, excessive engine movement and increased drivetrain harshness.

Should both mounts be replaced together?
Replacing both sides together is recommended when both have similar age and mileage because it keeps drivetrain support balanced.