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BMW P2400 Code – EVAP Small Leak Detected
Limited
Safe to drive :
BMW vehicles only
Applies only to :
Not applicable to :
This explanation does NOT apply to other brands.
Medium
Severity level :
When Does This Code Appear on the Vehicles
P2400 occurs when EVAP system detects leak in vapor lines.
What This Code means on the Vehicles
BMW-specific EVAP small leak detected by engine control module.
Why This is different from a generic OBD2 Code
Generic scanners report EVAP leak but not BMW-specific thresholds.
Common Situations That Trigger This Code
Loose gas cap; Cracked hose; Charcoal canister issue.
What Will NOT Fix This Code
Replacing unrelated parts; Ignoring EVAP hoses.
How to Clear This Code on Vehicles
Inspect hoses and canister; perform BMW-specific leak test; clear via ISTA.
Related Manufacturer Specific Codes
BMW P2401; BMW P2402
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