C1A13: Air Suspension Exhaust/Venting Fault (Land Rover, C1A13-64)
Severity: medium
What it means: Land Rover's suspension system says the air supply unit didn't vent (release air) in the time it expected. Land Rover bulletins tie C1A13-64 to a sticking compressor exhaust valve or a blocked silencer.
Safe to drive? Usually drivable with care, but the suspension may not raise or lower. Don't go off-road or tow until it's fixed.
Common symptoms
- Air suspension warning
- Vehicle won't raise or lower
- Ride height stuck
Likely causes, ranked
- Sticking compressor exhaust valveShop
- Blocked compressor silencerShop
- Leaks or other air supply faultsShop
Vehicle-specific notes
- 2010–2016 Land Rover LR4: Land Rover bulletins LTB00793 (2015–2016 LR4) say C1A13-64 can come from the air supply unit failing to vent due to a blocked silencer or faulty exhaust valve. Read the full answer · Source
What it means: Land Rover's suspension system says the air supply unit didn't vent (release air) in the time it expected. Land Rover bulletins tie C1A13-64 to a sticking compressor exhaust valve or a blocked silencer.
Severity: Medium. Safe to drive? Usually drivable with care, but the suspension may not raise or lower. Don't go off-road or tow until it's fixed.
DIY or shop?
Shop. Land Rover bulletins have specific parts and procedures.
Before you replace parts
- Read all suspension codes with a scan tool that reads Land Rover modules.
- Ask the dealer whether the exhaust valve or silencer bulletin applies to your VIN.
- Check for air leaks.
- Clear the code only after a repair, then confirm it stays off.
Safety / mechanic note
Verify with a mechanic. A suspension stuck low or high changes handling. A code points to a circuit or system, not always a specific part.