space star DG0 gearbox defective

Hello, I bought a new Space Star in 2003 after my good Colt was finished with only 140 000 km. (but without probs, only oil change and petrol refilling) Then the misery started with the Space Star, with 18 000Km brake pads expired back… not even “Renoschuhe” will be broken so quickly! Lambda probe just before warranty end fug… and now to good last gear damage after 4 years and say and write 54 000Km. replacement gearbox lt dealer about 2500.- Euronen *screech* + Installation and Merkel tax….. Now my question… how is your experience with Mitsubishi with culant!!!! Thank you for your answers, since I have to make a decision Reperatur or off with the box…….