P00BD fault code: what it means

P00BD: Air flow reading too high for the conditions. On Ford diesels it usually means air is leaking out after the MAF, not a bad sensor.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

burst intercooler pipe or boost hose
turbo intake leak
faulty MAF sensor

P00BD by make

Ford

Air flow reading too high for the conditions. On Ford diesels it usually means air is leaking out after the MAF, not a bad sensor.

Usual causes: burst intercooler pipe or boost hose; turbo intake leak; faulty MAF sensor

Land Rover

Mass air flow sensor range/performance, air flow too high. On SDV6 often logged with turbo valve codes when boost control goes wrong.

Usual causes: faulty or contaminated MAF sensor; boost control fault upsetting airflow; intake leak after the MAF

What the repair usually costs

MAF (mass air flow) sensor replaceNZ$170–NZ$660 · A$160–A$600
Intercooler or boost hose replacementNZ$250–NZ$1,780 · A$250–A$1,710

Not sure what P00BD 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.