Midland gearbox, Tritec engine and coolant leaks on the first MINI

Engine / equipment

MINI R50, R52 (convertible) and R53 (Cooper S), 2001–2006

Period mentioned

2001–2006

Symptoms

Midland manual gearbox with stiff shifts, wearing clutch and gearbox failures (grinding noise); cracked exhaust manifold and failing chain tensioner on the 1.6 Tritec; an ECU causing rough idle or stalling (up to 2003); water pump and supercharger on the Cooper S; engine mounts lasting 2–3 years; power-steering pump; thermostat housing and expansion tank leaking coolant; rust on the tailgate, window regulators and water inside.

Possible cause described

The German guide recommends cars after the 2004 facelift, which have the more reliable Getrag gearbox. At inspection, steering play, braking and oil leaks stand out; the ADAC cites battery terminals, fuel pump, clutch and power steering. Recalls: gear-cable clip (May 2001–May 2002), static electricity when refuelling (2001) and roof-rack mounts (August–November 2006).

Check for the garage

On the test drive, engage every gear and listen to the gearbox; check the coolant level and the cabin floor; check campaigns by VIN.

Cost cited in the source

No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.

Sources from the original database