Peugeot/Citroen Depressurise Air Suspension

Supported coding features by PSACOM diagnostic tool https://www.obdtester.com/psacom

Air Suspension Depressurisation

What it does

• Safely releases pressure from the air suspension system
• Allows mechanical work on suspension components
• Prevents damage to air springs, valves, or lines

When it is required

• Before replacing air suspension components
• Before removing air springs, valves, or lines
• Before suspension repairs or chassis work
• When instructed by manufacturer service procedure

Conditions that must be met

• Vehicle stationary on level ground
• Ignition ON (or as instructed)
• Stable battery voltage
• Diagnostic tool connected
• No active critical suspension fault codes

What happens during depressurisation

• Air suspension valves are opened in a controlled manner
• System pressure is gradually released
• Air springs are safely deflated
• ECU confirms system is in service mode

If depressurisation is not performed

• Risk of sudden air release
• Damage to suspension components
• Safety risk during mechanical work
• Suspension fault codes may be stored

After depressurisation

• Proceed with suspension service or repair
• Perform air suspension filling and calibration after work
• Verify suspension system operation
• Clear any related fault codes

Coverage in PSACOM