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MINI · Supermini · 2002–2006

MINI MINI Cooper S R53

Weaknesses, engine ratings and buying advice

★★★★★
2.0 / 5.0 · Based on 2 engine variants

Engine Ratings

Stay Away! 12 weaknesses
Be Careful 7 weaknesses

Vehicle Weaknesses

WeaknessCost
✖Supercharger oil loss leads to gear damage

The supercharger gearbox oil is lost over time from both sides. Without topping up, the gear teeth seize and the supercharger is a total loss. Oil check at every service is essential.

Symptoms: Grinding or scraping noise from the supercharger area that increases with engine speed. Power loss and hissing noises are early warning signs.
from 100,000 km
Ad MINI R53 supercharger oil Eaton M45Supercharger MINI Cooper S R53Eaton Roots supercharger oil
 High
●Sump gasket leaking

The sump gasket of the W11 engine becomes leaky and leaves oil patches on the ground. Possible as a DIY repair, but often ignored and leads to oil consumption.

Symptoms: Oil patches under the parked vehicle, oil smell from the engine bay, dropping oil level between service appointments.
from 100,000 km
Ad MINI R53 sump gasket W11Sump MINI Cooper S11137516382
 Low
●Crankshaft seal leaking

The front and rear crankshaft seals of the W11B16 become porous with age. Oil leaks externally, possibly onto the drive belt. Have the belt drive inspected when replacing.

Symptoms: Oil seepage at the crankshaft nose level, oil smell after driving, oil film on the underside of the engine in the area of the harmonic balancer.
from 130,000 km
Ad MINI R53 crankshaft seal W11Front shaft seal MINI Cooper S
 Low
NHTSA Owner Complaints
Below Average
2,590 complaints · 2002–2006
Steering
1564 ⚠ 36
Airbags
390 ⚠ 15
Powertrain
264 ⚠ 1
Electrical
195 ⚠ 7
Visibility
122

Top Reported Issues

⚠ Steering (1564 complaints)
⚠ Airbags (390 complaints)
⚠ Powertrain (264 complaints)
Source: NHTSA (nhtsa.gov) · 2026-03

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Known Problems and Issues

A total of 27 weaknesses have been documented for the MINI MINI Cooper S R53 (2002–2006) — 19 engine-related and 8 vehicle-related. One problem engine: W11B16 (1.6L Kompressor). Typical issues affect Other, Cooling, Gearbox, Suspension.

What to watch out for with the MINI MINI Cooper S? See the detailed listing of all engine and vehicle weaknesses in the sections above.

Frequently Asked Questions

What problems and weaknesses does the MINI MINI Cooper S R53 have? +
The MINI MINI Cooper S R53 has 19 known engine weaknesses and 8 vehicle weaknesses.
What should I look for when buying a used MINI MINI Cooper S R53? +
faq.watch_a_avoid
Which engine is recommended? +
Be careful: W10B16 (1.6L). No engine is rated 'Good Choice'. The most fun to drive is the W11B16 (1.6L Kompressor). Problem engine: W11B16 (1.6L Kompressor) — stay away!
Which MINI MINI Cooper S R53 engine is the most fun? +
The {code} ({displacement}) offers the most driving fun in the MINI MINI Cooper S R53 — rated: "Legendary!". {description} No turbo whoosh, no muffled rush — the W11 supercharger sings mechanically pure with every stab of the throttle, a whine that gets under your skin. Go-kart handling, the most direct steering of its era, no ESP butting in. Widely held to be the last real MINI — drive an R53 once and you will understand why.
Is the MINI MINI Cooper S R53 worth buying used? +
Caution is advised with the MINI MINI Cooper S R53 — 1 of 2 engine variants are rated 'Stay Away!'. The engine choice is crucial.
What horsepower variants are available for the MINI MINI Cooper S R53? +
The MINI MINI Cooper S R53 is available with engine variants from 90 to 218 hp. Petrol: W10B16 (1.6L), W11B16 (1.6L Kompressor).

Last updated: February 2026 · All information without guarantee