What is Porsche PADM? How It Works, Common Failures & the Best Repair Solution (991, 981, 982, 992 & 718)

What is Porsche PADM? How It Works, Common Failures & the Best Repair Solution (991, 981, 982, 992 & 718)

The Porsche Active Drivetrain Mount (PADM) system is one of Porsche's most advanced chassis technologies, combining everyday driving comfort with outstanding performance. By actively adjusting the stiffness of the engine mounts in real time, PADM minimizes engine movement during spirited driving while reducing vibrations during normal road use.

Although the system is highly effective, many Porsche owners eventually experience a PADM fault, a "PADM Disabled" warning, or diagnostic trouble codes such as 001013 and 001023.

In this guide, we'll explain how Porsche PADM works, why these failures occur, and why replacing only the faulty sensor is often a smarter and far more cost-effective solution than replacing the entire active engine mount.

What Is Porsche PADM?

Porsche Active Drivetrain Mount (PADM) is an electronically controlled engine mounting system designed to optimize both comfort and vehicle dynamics.

Unlike conventional engine mounts, PADM continuously adjusts its stiffness based on driving conditions.

During normal driving, the mounts remain soft to absorb engine vibrations and improve ride comfort.

When you select Sport or Sport Plus, or during hard acceleration and aggressive cornering, the mounts instantly become stiffer. This reduces engine movement, improves chassis balance, and delivers sharper steering response and greater vehicle stability.

PADM is available on numerous Porsche models equipped with the Sport Chrono Package, including:

• Porsche 911 (991)
• Porsche 911 (992)
• Porsche Boxster 981
• Porsche Cayman 981
• Porsche 718 Boxster (982)
• Porsche 718 Cayman (982)

How Does Porsche PADM Work?

The PADM system uses a magnetorheological fluid inside the active engine mounts.

This special fluid contains microscopic iron particles that change viscosity when exposed to an electromagnetic field.

An integrated electromagnetic coil continuously controls the magnetic field, allowing the engine mount to switch between different stiffness levels in milliseconds.

The result is two distinct operating characteristics:

Comfort Mode

The mounts remain soft, reducing engine vibrations and providing a smoother, quieter driving experience.

Performance Mode

During dynamic driving, the fluid stiffens almost instantly, significantly reducing engine movement for improved handling, faster steering response, and increased stability.

This continuous adjustment happens automatically based on vehicle speed, engine load, steering input, and the selected driving mode.

Benefits of Porsche PADM

The Porsche Active Drivetrain Mount system offers several advantages over conventional engine mounts.

Benefits include:

• Reduced engine vibrations at idle
• Improved driving comfort
• Better drivetrain stability
• Sharper steering response
• Improved cornering precision
• Reduced engine movement during acceleration
• Enhanced performance in Sport and Sport Plus modes

These advantages make PADM one of the key technologies behind Porsche's renowned driving dynamics.

Why Does Porsche PADM Fail?

One of the biggest misconceptions is that a PADM fault means the entire active engine mount has failed.

In reality, engineering analysis has shown that the sensor is usually the component that fails—not the mount itself.

The internal PADM sensor operates in an extremely demanding environment where it is continuously exposed to:

• High engine temperatures
• Constant vibration
• Thermal cycling
• Internal hydraulic pressure
• Long-term mechanical stress

Over time, these conditions can cause the sensor electronics to fail, even while the engine mount remains mechanically sound.

Common Porsche PADM Fault Codes

A failing PADM sensor commonly triggers one or more of the following fault codes:

• 001013
• 001023

Drivers may also experience:

• PADM Disabled warning
• Engine Mount Fault
• Check Engine Light (CEL)
• Increased cabin vibration
• Reduced Sport Chrono functionality

What Happens When PADM Stops Working?

When the control unit detects a fault, the active functionality of the engine mounts is disabled.

In most cases, the mounts default to a stiff safety position.

While the vehicle remains drivable, owners often notice:

• Increased engine vibration
• Reduced driving comfort
• Dashboard warning messages
• Loss of active drivetrain mount functionality

The car no longer delivers the balance between comfort and performance that Porsche originally engineered.

Repair Options for a Porsche PADM Fault

1. Replace the Complete PADM Mount

The official Porsche repair procedure is to replace the complete active engine mount assembly.

Although effective, this is also the most expensive solution, requiring both costly parts and significant labor.

2. Replace Only the PADM Sensor

An increasing number of Porsche specialists now recommend replacing only the faulty internal sensor.

Since the mechanical engine mount is often still in excellent condition, replacing the sensor is a far more logical repair.

Our upgraded Plug & Play Porsche PADM Sensor has been specifically engineered to eliminate the common weaknesses found in the original OEM sensor.

Benefits include:

• Significantly lower repair costs
• Retains the original Porsche engine mount
• True Plug & Play installation
• No coding required
• No PIWIS programming required
• Improved durability compared to the OEM sensor

3. Disable PADM via Software

Some workshops offer software coding that permanently disables the PADM system.

While this removes the warning messages, it also eliminates one of the key performance features of the Sport Chrono Package.

For most Porsche enthusiasts, this is not an ideal long-term solution.

Compatible Porsche Models

Our upgraded PADM sensor is compatible with many Porsche models equipped with active drivetrain mounts, including:

• Porsche 911 (991)
• Porsche 911 (992)
• Porsche Boxster 981
• Porsche Cayman 981
• Porsche 718 Boxster (982)
• Porsche 718 Cayman (982)

Always verify compatibility before ordering.

Conclusion

A Porsche PADM fault does not automatically mean you need to replace the complete active engine mount.

In most cases, the internal sensor is the true point of failure.

Replacing only the sensor can save hundreds or even thousands while restoring full PADM functionality.

Our upgraded Plug & Play Porsche PADM Sensor has been engineered to solve the weaknesses of the original design, allowing you to retain your factory engine mounts while restoring the performance, comfort, and reliability your Porsche was designed to deliver.

If your Porsche displays a "PADM Disabled" warning or fault codes 001013 or 001023, upgrade to our reinforced PADM sensor and restore your Porsche with a smarter, more cost-effective repair.