MajorCommonSuspension

Porsche 911: PASM Active Damper Actuator Failure (997)

PASM Active Damper Actuator Failure (997) is a common suspension fault on the Porsche 911 on the 2005–2012 cars, and we rate it major. Putting it right costs $1,500 to $5,500 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 18 documented faults on the Porsche 911.

Vehicle: Porsche 911
Years: 2005–2012
Fuel: petrol
System: Suspension

This page covers the Porsche 911 as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Porsche 911 faults18 documented faults on this model

What you are looking at

No photograph available

We do not hold a verified photograph of the Shock absorber / strut yet. We would rather show none than show a picture of a different part.

What goes wrong

Porsche Active Suspension Management (PASM) uses electronically controlled dampers that adjust stiffness in real time. The solenoid actuators inside each strut are a documented failure point on 997 models, particularly in NZ/AU operating conditions. Failure triggers a PASM warning light and defaults the suspension to a fixed damping state. Individual strut replacement is the only repair — OEM units are expensive, though aftermarket PASM-compatible alternatives exist. High-mileage 997s over 10 years old commonly present with at least one failed actuator.

What you would notice

PASM warning light on instrument cluster
Suspension stuck in firm or soft mode regardless of switch position
Uneven ride quality between corners
PASM fault codes in Porsche PIWIS or Durametric diagnostics

How to check it

Where to look. Electronic damper actuators in all four suspension struts

Confirm the PASM button toggles between Normal and Sport modes and that a change in ride firmness is felt.
Inspect wiring harness at each strut for chafing or corrosion, which is a common root cause of actuator failure.
If a workshop inspection is possible: Connect a Porsche PIWIS or Durametric OBD tool and read suspension fault codes before purchase.

Parts involved: Shock absorber / strut.

What it costs to put right

$1,500 to $5,500 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

Ask the seller

“Is the PASM system fully operational with no warning lights?”
“Have any struts been replaced and were PASM-compatible units fitted?”
“Has a full suspension diagnostic scan been carried out recently?”

Now check the Porsche 911 you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.

Porsche 911 buyer questions

Is pasm active damper actuator failure (997) serious on a Porsche 911?

We rate it major and common on the Porsche 911. Porsche Active Suspension Management (PASM) uses electronically controlled dampers that adjust stiffness in real time. The solenoid actuators inside each strut are a documented failure point on 997 models, particularly in NZ/AU operating conditions. Failure triggers a PASM warning light and defaults the suspension to a fixed damping state. Individual strut replacement is the only repair — OEM units are expensive, though aftermarket PASM-compatible alternatives exist. High-mileage 997s over 10 years old commonly present with at least one failed actuator.

How much does it cost to fix on a Porsche 911?

$1,500 to $5,500 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Porsche 911 years are affected?

Our research records this fault on the 2005–2012 Porsche 911. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.

How do I check for it before I buy?

Confirm the PASM button toggles between Normal and Sport modes and that a change in ride firmness is felt. Inspect wiring harness at each strut for chafing or corrosion, which is a common root cause of actuator failure. If a workshop inspection is possible: Connect a Porsche PIWIS or Durametric OBD tool and read suspension fault codes before purchase. Look here: Electronic damper actuators in all four suspension struts