MINI MINI Countryman
The revised B38 of the U-series received a strengthened timing chain assembly, improved PCV system and optimised thermal management. The 48V mild-hybrid belt-starter takes over boost and recuperation functions, relieving the combustion engine; the belt-starter unit is an additional service item to factor in.
Mild-hybrid base
136 hp with 48V assist — zippy enough for everyday use, but not a driving-fun machine. Everyday transport with MINI connection.
Engine Weaknesses 7
The B38's timing chain can stretch from around 80,000 km. Rattling on cold start is the first warning signal. Left untreated, chain jump and engine damage are likely.
Symptoms: Rattling noise on cold start that disappears after a few seconds. As it progresses: rough running, power loss, check engine light.
Early B38 engines (up to 04/2015) had an undersized half-shell thrust bearing that only causes problems with manual transmissions. BMW switched to 360-degree flanged bearings.
Symptoms: Vibrations that initially appear to come from the suspension. In extreme cases, catastrophic engine failure from bearing wear.
The three-cylinder's engine mounts wear significantly faster than expected in the MINI due to the transverse mounting and inherent vibrations. Failures documented from as low as 20,000 km.
Symptoms: Banging, creaking noises from the engine bay, engine visibly sitting crooked, increased vibrations at idle.
With insufficient lubrication or at high mileages, the turbocharger's oil seals can wear out. Blue exhaust smoke and increased oil consumption are the result.
Symptoms: Blue exhaust smoke, power loss, whistling noise from the turbo, increased oil consumption.
Plastic thermostat housing and electric water pump can fail from 80,000 km. Coolant loss without visible leak or overheating warning are typical.
Symptoms: Dropping coolant level, overheating warning, heater goes cold or fluctuates.
With direct injection, the intake valves are not washed by fuel. At higher mileages they coke up, leading to power loss and increased consumption.
Symptoms: Power loss, higher fuel consumption, rough idle.
The EGR valve clogs with soot deposits especially with predominantly short-trip use. Hesitation under part load and increased consumption are typical signs.
Symptoms: Hesitation under part load, rough idle, increased fuel consumption, check engine light.
Vehicle Weaknesses 7
Signal faults in Continental's integrated brake system MK-C2 can in very rare cases lead to increased brake pedal resistance and failure of ABS and DSC. Free replacement of the component.
The new infotainment system of the U-era shows teething problems: settings change without user input. Software updates are applied over-the-air or at the dealer.
Early user reports criticise reduced material quality in visible areas and the removal of physical controls compared to the predecessor F60.
The tailgate reopens after closing. The problem has been documented in forums and occurs repeatedly on certain vehicles. Dealer diagnosis recommended.
After charging at a faulty charging point, Check Control messages about the high-voltage system appear repeatedly. A workshop diagnosis and software reset are required.
Test drives and user experience describe the suspension as rather vague with a very light steering offering insufficient road feedback. Unusual by MINI standards.
The painted and soft surfaces in the cabin scratch very easily through normal use. Door cards and the centre console without padding are particularly susceptible.