CriticalVery commonSuspension

Audi A8: Air Suspension Strut Failure and Compressor Burn-Out

Air Suspension Strut Failure and Compressor Burn-Out is a very common suspension fault on the Audi A8 on the 2002 onward cars, and we rate it critical. Putting it right costs $1,400 to $8,000 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 7 documented faults on the Audi A8.

Vehicle: Audi A8
Years: 2002 onward
System: Suspension

This page covers the Audi A8 as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Audi A8 faults7 documented faults on this model

What you are looking at

No photograph available

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

What goes wrong

All D3, D4, and D5 Audi A8 models use Audi Adaptive Air Suspension as standard across all four corners. Air spring bladders degrade from ozone cracking, UV exposure, and heat cycling — D3 cars (2002-2009) are now 17-24 years old in the NZ/AU market, making strut failure essentially expected. The air compressor overworks to maintain pressure against leaking struts and burns out within months of first strut failure. D4 compressor failure is particularly well-documented due to the compressor being in an enclosed location with poor ventilation. A car sitting on its bump stops fails WOF in NZ/AU. Coilover conversion is a common but ride-quality-compromising workaround seen frequently at the price point these cars trade at.

What you would notice

Vehicle sitting lower than normal at one or more corners
Suspension fault or 'raise vehicle' warning on MMI display
Air compressor audible cycling repeatedly after startup
Harsh, undamped ride quality with no height adjustment response
Visible lean or tilt when parked on level ground

How to check it

Where to look. All four corners (air strut assemblies) and air compressor (D3: boot area; D4: under rear seat; D5: boot floor area)

Check ride height at all four corners when cold — any low corner indicates a failed strut.
Start the car and listen for the compressor cycling repeatedly (indicates pressure loss).
Check MMI for suspension warnings.
Ask directly when struts were last replaced, and whether the car has been on coilovers at any point.

Parts involved: Air suspension strut, Shock absorber / strut.

What it costs to put right

$1,400 to $8,000 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

“Have any air suspension struts been replaced, and when?”
“Has the air compressor been replaced?”
“Has the car ever sat at an abnormally low ride height?”
“Has the suspension been converted to coilovers?”

Now check the Audi A8 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.

Audi A8 buyer questions

Is air suspension strut failure and compressor burn-out serious on a Audi A8?

We rate it critical and very common on the Audi A8. All D3, D4, and D5 Audi A8 models use Audi Adaptive Air Suspension as standard across all four corners. Air spring bladders degrade from ozone cracking, UV exposure, and heat cycling — D3 cars (2002-2009) are now 17-24 years old in the NZ/AU market, making strut failure essentially expected. The air compressor overworks to maintain pressure against leaking struts and burns out within months of first strut failure. D4 compressor failure is particularly well-documented due to the compressor being in an enclosed location with poor ventilation. A car sitting on its bump stops fails WOF in NZ/AU. Coilover conversion is a common but ride-quality-compromising workaround seen frequently at the price point these cars trade at.

How much does it cost to fix on a Audi A8?

$1,400 to $8,000 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 Audi A8 years are affected?

Our research records this fault on the 2002 onward Audi A8. 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?

Check ride height at all four corners when cold — any low corner indicates a failed strut. Start the car and listen for the compressor cycling repeatedly (indicates pressure loss). Check MMI for suspension warnings. Ask directly when struts were last replaced, and whether the car has been on coilovers at any point. Look here: All four corners (air strut assemblies) and air compressor (D3: boot area; D4: under rear seat; D5: boot floor area)