Air intakeGeneric OBD-II codeUrgency: Monitor

P0507 on MINI: causes and affected engines

P0507 means: idle control system: speed higher than expected.^[1][2] MINI has 4 documented faults that can trigger it, across 4 engines: BMW N47, 1.6 HDi, BMW B48 / B38 and BMW B38 / B37. Only a diagnosis can confirm the cause on your car.

Documented faults

that can trigger it

Engines

used by MINI, with at least one of them

MINI models

with at least one of these faults

Urgency

Monitor

Reviewed on 30 October 20263 sources How we work

Documented faults in MINI engines that can trigger P0507

Grouped by engine or model, from most to least important. These are faults with carbon build-up in the intake and with the intake flaps: not all of them will necessarily set the code, and only a diagnosis confirms the cause on your car.

BMW N47

In Clubman R55, Cooper R56 and Countryman R60

- Critical severityFrequency: CommonIntakeBroken intake manifold swirl flapsYes: the N47's intake manifold has plastic swirl flaps that, with diesel soot and the passing years, can crack, come loose and be sucked into the cylinder, with a risk of seriously damaging the piston, cylinder head and valves.

1.6 HDi

In Cooper R56

- Medium severityFrequency: CommonInjectionLeaks at the injector washers and carbon build-up in the cylinder headIt is common for the copper washers of the 1.6 HDi injectors to stop sealing: the engine blows gases, carbon forms around the injector and soot gets into the oil. It is cheap to repair, but if left it contaminates the oil and is one of the causes of turbo failure.Repair (garage): €110–€310

BMW B48 / B38

In Cooper F56, Cooper F55 and Countryman F60

- Low severityFrequency: CommonIntakeCarbon build-up on the intake valves (direct injection)Yes, as on most direct-injection engines: because they are not washed by fuel, the intake valves on the B48/B38 build up carbon over the years, especially in urban use, with a loss of smoothness and a less stable idle.

BMW B38 / B37

In Cooper F56, Cooper F55 and Countryman F60

- Low severityFrequency: OccasionalIntakeCarbon build-up on the B38's intake valves and injectorsAs a direct-injection engine, the B38 builds up carbon deposits on the intake valves and injectors, like other direct-injection petrol engines. The German press cites it as the point to watch in an otherwise trouble-free engine, and it is noticed mainly on short journeys.

Common causes of P0507 on any make

From most to least likely, according to the sources.

1Vacuum leak or unmetered air entering after the throttle: cracked intake hose, PCV or brake servo hose, or manifold gasket.^[1][3]
2Throttle body dirty or sticking from carbon build-up, or idle air control (IAC) valve stuck open.^[1][2][3]
3Dirty mass airflow (MAF) sensor or incorrect coolant temperature signal.^[2][3]
4EVAP purge valve stuck open, letting vapours into the intake.^[1]

What to check first

The first diagnostic steps, from the most likely and cheapest to check to the most expensive.

1Use the diagnostic tool to check that the idle really is higher than the target and when it happens: cold, warm or with the air conditioning on.^[1]
2Look for unmetered air leaks with a smoke test on the intake: hoses, PCV, brake servo, gaskets and EGR.^[1][3]
3Clean the throttle body and the IAC valve, and carry out the throttle relearn with the tool if it is electronic.^[1][3]

Full guide to P0507: symptoms, diagnosis and whether you can drive

Frequently asked questions

Which MINI engines have faults that can trigger P0507?

BMW N47 (1 fault), 1.6 HDi (1 fault), BMW B48 / B38 (1 fault) and BMW B38 / B37 (1 fault). Each fault has its own page with the affected years and versions, the symptoms and the repair cost.

What does code P0507 mean on a MINI?

Idle control system: speed higher than expected. The ECU has detected that the actual idle speed is consistently above the target it calculated itself, with a tolerance that AutoDTCs puts at around 200 rpm. It is a generic OBD-II code: it means the same on a MINI as on any other make.^[1][2]

Can I keep driving with P0507?

Monitor. According to the sources it will not leave you stranded, but a high idle raises consumption and can punish the automatic gearbox when engaging; get it repaired soon.^[1][3]

Sources

Every fact on this page links to its source. If you find an error, let us know.

P0507 – AutoDTCsAutoDTCs · Technical documentation · consulted 29 October 2026
OBD Fehlercode P0507CarWiki.de · Technical documentation · consulted 29 October 2026 · in German
P0507: OBD2 diagnostic trouble codeCarista · Technical documentation · consulted 29 October 2026