Mini Convertible maintenance: the schedule, the costs, the traps
A subcompact 2-door convertible (soft-top) with a gas powertrain. Below: the service intervals with real cost ranges, the repairs Convertible owners actually report, and when a fleet operator would sell. Same data Carlyle uses to score fleet buys.
Service schedule
What it needs, and what that runs
| Interval | Service | Typical cost |
|---|---|---|
| 10,000 mi / 12 mo | Full-synthetic oil & filter change, tire rotation, multipoint inspection, service reset | $130-$190 |
| 30,000 mi | Engine air filter, cabin/micro filter, oil service, brake fluid flush (2-yr), convertible-top drain/hinge lubrication | $350-$575 |
| 60,000 mi | Spark plugs (B48 turbo), oil, air & cabin filters, brake fluid, 7-spd DCT clutch/fluid service, coolant check | $750-$1,300 |
| 100,000 mi | Coolant flush, transmission fluid, spark plugs, accessory belt, top-mechanism service, full inspection | $850-$1,600 |
Known repair windows
What Convertible owners actually run into
Mileage ranges where these repairs typically show up. Buying above a window is not automatically a pass - it just needs to be priced in.
Power soft-top mechanism / hydraulics / top motor
medium severity60,000-120,000 mi · $600-$1,800
Convertible-specific: hydraulic cylinders, cables and the drive motor can fail; top stalls partway.
Clogged top drains / water intrusion
medium severity40,000-100,000 mi · $150-$700
Blocked drain channels leak into footwells/electronics; leaves/debris cause it, cheap if caught early.
Oil filter housing gasket & valve cover leaks
medium severity50,000-90,000 mi · $350-$750
BMW-family oil weeping onto hot components.
GDI intake-valve carbon buildup
medium severity60,000-100,000 mi · $400-$650
Direct-injection deposits; walnut-blast decarbon.
Turbocharger failure
high severity90,000-140,000 mi · $1,800-$3,000
Wastegate rattle / turbo wear on Cooper S and JCW.
Operator notes
New F67 generation (2025+), described by MINI as its last all-new combustion car. All trims use the 2.0L B48 turbo 4-cyl with a 7-speed dual-clutch (DCT) auto; manual discontinued. Cooper ~161 hp, Cooper S ~201 hp, JCW ~231 hp. Timing chain (no belt), full-synthetic oil, Condition-Based-Service ~10k/annual. Extra soft-top care: keep drains clear, lubricate the mechanism, garage when possible. Round OLED infotainment can have early software quirks.
When the smart money sells
On fleet math, a gas Convertible retires around 95,000 miles - but the exit window opens earlier here: Turbocharger failure risk window ($1,800-$3,000) opens ~90,000 mi. Carlyle's garage tracks this per car, against your actual odometer.
Cost ranges are typical US independent-shop estimates and vary by region and condition. Modeling, not mechanic advice - always confirm against your car's service records.
More Mini guides
Thinking about buying a Convertible?
Carlyle scores the exact listing - price vs. useful miles left, projected Turo income in your market, and a straight buy-or-pass call.
Find my car - freeFree chat every day. No credit card to start.