MINI MINI
The 2.0-litre four-cylinder diesel shows EGR valve problems in early production (jamming, intake manifold overheating), which led to a recall. The intake tract and cylinder head ports can become fouled with soot deposits. Verify recall completion before purchase; inspect the EGR system and intake for deposits.
SD with Steptronic — authoritative
The 2-litre diesel with 110 kW and automatic moves the MINI with authority. Plenty of torque and smooth gearchanges give a mature feel. Sporty it is not.
Engine Weaknesses 5
BMW recalled up to 800,000 diesel vehicles (incl. MINI Cooper SD) due to fire risk from a leaking EGR cooler. Engines up to model year 2017 are affected. Recall should have been carried out free of charge at the dealer.
Symptoms: No direct early warning symptom; occasional coolant loss may be noticeable
The B47 in the MINI Cooper D/SD needs sufficiently long journeys for DPF regeneration. Predominantly urban driving prevents complete regeneration and leads to DPF saturation.
Symptoms: DPF warning light, reduced engine power, increased diesel consumption
At higher mileages, the high-pressure fuel pump (HPFP) and injectors of the B47 can wear. Symptoms are difficult starting and power loss.
Symptoms: Poor cold-start behaviour, power loss, hesitation
The B47's piezo injectors can show deteriorating spray pattern from around 100,000 km due to coking. Professional ultrasonic cleaning or replacement required.
Symptoms: Rough idle, power loss, increased fuel consumption, blue exhaust plume when accelerating
The B47's EGR valve is particularly prone to clogging with soot particles in short-trip use. The result is rough idle, increased consumption and in some cases limp mode.
Symptoms: Hesitation under part load, increased consumption, rough idle, check engine light
Vehicle Weaknesses 16
The outer tie rod ends show excessive wear and can fail prematurely. A recall affected vehicles from certain production periods; replacement was often covered under goodwill.
The four-cylinder diesel (B47) posed a fire risk due to coolant escaping from the EGR cooler. Affected vehicles were produced between April 2015 and September 2016.
On the Aisin GA8G45AW fitted from 02/2019, ball bearing wear in clutch pack 3 can lead to internal oil loss and erratic shift behaviour. Gearbox replacement outside warranty is extremely expensive.
The strut bearings on the front axle wear prematurely and cause noise when steering. Replacing both strut bearings is the lasting solution.
The windscreen wiper drive is prone to corrosion and produces noise as a result. With advanced rust the wiper drive can fail completely.
The Aisin 8-speed torque converter automatic shifts roughly between 2nd and 3rd gear and produces harsh downshifts from 4th to 3rd. Reverse gear is sometimes engaged with up to a 3-second delay.
The B38 and B48 petrol direct injection engines build up carbon deposits on the intake valves and in the intake tract. Results in power loss and increased fuel consumption. Walnut blasting is the cleaning method of choice.
The B47 diesel is prone to DPF blockages with a lot of short-trip driving, as the temperature required for regeneration is not reached. Regular motorway driving is necessary.
The oil filter housing gasket on the B38/B48 becomes brittle from around 80,000 km. Oil drips onto the exhaust manifold and causes a burning smell. Internal leakage risks oil-coolant mixing.
The adaptive LED headlights of the F56 can fail due to defective control units or LED modules. Individual replacement is often not possible, as the entire headlight module must be replaced.
Water enters the boot through defective tailgate seals, the third brake light or ventilation openings. The problem is known to the manufacturer and affects early models particularly frequently.
Knocking and grinding noises occur when steering at a standstill or at low speed. The cause is often the strut bearings or the clock spring cassette, which need to be replaced.
The front lighting is flagged at the MOT significantly more often than average. Rear lights also occasionally develop condensation from moisture ingress.
The keyless start system is sensitive to interference signals from smartphones or other electronic devices. Doors open fine, but engine start is occasionally refused.
The optional panoramic sunroof produces wind noise when closed at higher speeds. Cracked or hardened seals are the most common cause.
Some vehicles left the factory with too little refrigerant, which noticeably reduces cooling performance. A top-up at the next service resolves the problem permanently.