OBD-II code · Powertrain (generic, extended)
P240D Alternative Fuel Low Pressure System Leak
Alternative Fuel Low Pressure System Leak: a leak has been detected in this brake-hydraulic circuit, which reduces braking pressure. Safety-critical.
Is it safe to drive with P240D?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyHose or fitting leak
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.8–3 h
- Emissions test
- Likely to fail
- Parts involved
- Alternative Fuel Low Pressure Line
Related codes
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.