C0016Right Front Hydraulic Release Too Long
- Generic OBD-II code · Chassis
- Can trigger limp mode
- How the car detects it
- Set when the ABS modulator cannot release pressure at the right front wheel within the expected time during a control cycle, the right front equivalent of C0012. After commanding the right front outlet valve to dump pressure the module expects wheel speed to recover and line pressure to fall; if the release exceeds the calibrated time limit it infers a sticking valve, a restricted hydraulic path or an accumulator/pump that cannot take fluid. The module disables ABS and stability control and sets the ABS warning lamp. No manufacturer documents this code publicly. A patent on ABS low-pressure accumulators shows why release can stall: once the accumulator pressure is high, fluid no longer leaves the wheel through the outlet valve as requested.
- What you may notice
- ABS warning lamp on
- ABS and stability control disabled
- Extended or firm pedal during hard braking
- Likely causes
- LikelyOutlet valve sticking or slow
- PossibleRestricted hydraulic path or contaminated fluid
- RarePump or accumulator cannot accept fluid
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €300 – €1,800
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.