Skip to content
MotorFiable
en

B47C20

B47C20 (MINI Cooper D/SD and Countryman, 2014-) engine: faults and reliability

BMW B47 (B47D20 / B47C20) version

With caution

Shares the block and the same documented EGR and timing chain risks as the BMW B47D20.[1][2]

Years
since 2014
Power
116–190 hp
Faults that affect it
4
3 of high or critical severity
Cars that use it
3
in our database

3 sourcesHow we work

What changes in this version

Adaptation of the B47 for MINI, fitted to the Cooper D/SD (F55/F56) and the Countryman (F60) with power outputs similar to the BMW versions of the same displacement.[1]

Engine codes of this version: B47C20.

Faults of the B47C20 engine

The documented engine faults that affect this version and its years, from most to least important.

  1. 1Critical severityFrequency: Very frequentEmissions controlEGR cooler leaks with risk of engine fireYes: the EGR valve cooler can suffer internal coolant leaks which, mixed with soot and oil, can reach combustion temperatures; BMW has launched several technical campaigns since 2018 to inspect and replace it because of the risk of engine fire.Repair (garage): €500–€1,500
  2. 2High severityFrequency: OccasionalTimingTiming chain wear (improved, but is it really at the front?)BMW improved the chain's tensioner, guides and oil supply compared with the N47, and failures take much longer to appear. But a specialist workshop insists the chain is still at the rear of the block, not at the front as is often claimed, so repairing it still means removing the engine or the gearbox.
  3. 3High severityFrequency: OccasionalTurboPremature turbo wear from neglected maintenanceThe B47's turbo does not have a design flaw as well documented as the N47's, but it can wear out early if oil changes are not respected, with repairs that usually run at around €1,000 to €2,000.Repair (garage): €1,000–€2,000
  4. 4Medium severityFrequency: CommonEmissions controlParticulate filter (DPF) clogging in urban useYes: as on most modern diesels, the B47's particulate filter can clog with soot in cars used in town on short journeys, with cleaning or replacement costing from €500 to €1,800 depending on the condition of the filter.Repair (garage): €500–€1,800

Cars fitted with the B47C20 engine

Open each car to see all its faults with this engine and what to check before buying it.

MINI

Frequently asked questions

Is the B47C20 engine reliable?

Our verdict is “With caution”. Shares the block and the same documented EGR and timing chain risks as the BMW B47D20.[1][2]

What faults does the B47C20 engine have?

The documented ones that affect this version, by importance: EGR cooler leaks with risk of engine fire (critical severity), timing chain wear (improved, but is it really at the front?) (high severity), premature turbo wear from neglected maintenance (high severity) and particulate filter (DPF) clogging in urban use (medium severity).

Which cars use the B47C20 engine?

MINI Cooper F56 (2014–2024), MINI Countryman F60 (2017–2023) and MINI Cooper F55 (2014–2024).[1][3]

Are you buying a car with the B47C20 engine?

We will put you in touch with a partner only if you authorise it in the form.

Do you have a car with this engine? Tell us which faults you have had and at how many kilometres. Report your fault.

Sources

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

  1. BMW B47Wikipedia (inglés) · Other source · consulted 26 September 2026
  2. Motor BMW B47 - Reparación EspecializadaDasercars · Technical documentation · consulted 26 September 2026 · in Spanish
  3. Mini HatchWikipedia · Other source · consulted 29 October 2026