Air Suspension Levelling
For cars with PASM
Fits:
Porsche 955 / 957 Cayenne - 2003 to 2010
Porsche 958 Cayenne - 2010 to 2017
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Diagram ref no. 13
* Please check and match the part number of your relay in your car before ordering.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95561501001
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 955 Cayenne S 4.5L V8 2003-06
- Porsche 955 Cayenne Turbo 4.5L 2003-06
- Porsche 955 Cayenne Turbo S 4.5L 2006>>
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 957 Cayenne 3.6L 2007-10
- Porsche 957 Cayenne S/GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
- Porsche 958 Cayenne V6 3.6L Petrol 300Hp 2010-17
- Porsche 958 Cayenne V6 3.0L Diesel 245HP 2010-17
- Porsche 958 Cayenne S V6 3.0L Hybrid 380HP 2010-17
- Porsche 958 Cayenne S V8 4.8L Petrol 400HP 2010-17
- Porsche 958 Cayenne S V8 4.2L Diesel 382HP 2010-17
- Porsche 958 Cayenne GTS V8 4.8L Petrol 400HP 2010-17
- Porsche 958 Cayenne Turbo V8 4.8L Petrol 500HP 2010-17
- Porsche 958 Cayenne Turbo S V8 4.8L Petrol 550HP 2010-17
Porsche Hydraulics & Air Suspension Levelling | Ride Comfort, Control & Performance Stability
Hydraulic and air suspension levelling systems play a crucial role in maintaining your Porsche’s ride height, comfort, and handling balance. These systems automatically adjust suspension pressure or air volume to ensure consistent ride height, even load distribution, and precise cornering stability — whether you’re on the road or track.
At Design911, we supply high-quality hydraulic and air suspension levelling components designed to meet or exceed original performance standards. Manufactured using advanced materials and engineering precision, these parts ensure smooth operation, accurate levelling response, and long-term reliability across all Porsche models.
Whether you’re repairing a slow suspension leak, replacing worn valves, or upgrading the full levelling system, our parts restore driving comfort, handling precision, and suspension integrity.
What Does the Hydraulic / Air Suspension Levelling System Do?
The system automatically adjusts your Porsche’s suspension height and pressure to maintain comfort and control under varying loads or driving conditions.
Core Functions:
- Maintains correct ride height regardless of passenger or cargo load.
- Adjusts damping and stiffness for road conditions and speed.
- Balances vehicle stance for optimal aerodynamics and handling.
- Works with sensors, valves, and pumps to maintain even levelling.
- Enhances comfort, stability, and cornering precision.
Without a functioning levelling system, ride height becomes uneven, handling performance deteriorates, and tyre wear increases.
Why Do Hydraulics & Air Suspension Levelling Systems Fail?
Over time, hydraulic and pneumatic components are exposed to high pressures, temperature changes, and environmental contaminants — leading to gradual performance decline.
Common Causes of Failure Include:
- Air leaks from suspension struts, lines, or fittings.
- Hydraulic fluid leaks reducing system pressure.
- Faulty ride height sensors or valves.
- Compressor motor burnout or relay failure.
- Corrosion or wear in pressure accumulators and hoses.
When these issues occur, symptoms may include a sagging suspension, uneven ride height, “level control” warning lights, or a harsh, unstable ride.
Why Replace Your Porsche Hydraulic / Air Suspension Levelling Components?
Replacing worn levelling components restores your Porsche’s signature comfort, stability, and control — ensuring the suspension system operates safely and efficiently.
Key Benefits:
- Restores correct ride height and suspension performance.
- Prevents uneven tyre wear and suspension imbalance.
- Improves handling, comfort, and braking stability.
- Eliminates “level control” warnings and error codes.
- Compatible with Porsche 911, Panamera, Cayenne, Macan, and other models with air or hydraulic suspension systems.
- Ideal for maintenance, rebuilds, or performance upgrades.
Regular inspection and replacement of worn seals, lines, or compressors will prevent costly future damage and maintain consistent ride quality.
Highlights
- Precision-engineered Porsche hydraulic and air levelling components.
- Designed for accuracy, durability, and smooth operation.
- Resistant to corrosion, pressure loss, and vibration.
- Restores optimal ride height and comfort.
- Direct-fit replacements for road and performance models.
- Ideal for repair, restoration, or complete suspension overhaul.