Recently bought a Daewoo Matiz 800cc with 64K on the clock. Gears hard to change, especially from 3rd to 2nd which has a grating noise. Had new clutch and timing belt done but gears no change. Anyone have any suggestions and possible costs to correct.
Castrol website suggests 2.1 Litres of SMX-S gear oil.
However, many modern cars do not have a drain plug for gearbox oil so it may not be as simple as it seems.
In addition, a clutch cable may not be properly adjusted. I Don't know the Matiz so it might be worth looking into that as well.
You may find this website helpful if you have some technical knowledge gm.ws123.net/EN/documents/Matiz/start_matiz.html
Basically, it's a repair manual for the Matiz.
I have had two Matiz cars and both had the same problem develop with the gear change cables. Where they attach to the top of the gear box, the ends of the cables have rubber bushes which deteriorate, crack and slowly turn to powder making the link sloppy and gear change rough. This problem was not however accompanied by any grating noise. This may be the problem.