P15E8 fault code: what it means

P15E8: Engine-off timer and coolant cool-down do not agree. Often after a flat battery or short stops.

Engine and gearbox (powertrain) · Keep an eye on

Usual causes, most likely first

battery disconnected or flat
coolant temperature sensor fault

P15E8 by make

Mini

Engine-off timer and coolant cool-down do not agree. Often after a flat battery or short stops.

Usual causes: battery disconnected or flat; coolant temperature sensor fault

What the repair usually costs

Parking sensor replace, one sensorNZ$130–NZ$520 · A$130–A$510
Hybrid 12 V auxiliary battery (Aqua / Prius C / Axio, S34B20R)NZ$330–NZ$510 · A$310–A$500

Not sure what P15E8 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.