golf 5 gear problem :S:S

[hesham]

hi all .. i own a golf 5 (model 2005) 1.6 ok when i reach 50000km the gear starts to jerk in low gears and now when i reach 80000km this jerk increased sooooooooo much :S so i increase oil for this gear and nothing changed at all :S so if any body know a solution for this disaster plzzz tell me because some people tell me that i have to get a new gear :S:S and this is a real **** .. so plz if one have an answer for this problem tell me ..... thx all