@gorkan, these Knocking problems are wid eery other japanese car. ive personly noticed it in Vitz, Corola nd premio
other pakwheelers have complained knocking in lancer also
the only solution i cud dig up was 10 liters hi-octance, nd rest Super full. but hi-octance is like 70 so i do that once in 5 refils now.
iam also having some belt noises when the a.c is on nd the engine takes load. thats pretty mch a/c nd fan belt.
btw i still face sum vibration @ D wen on signals. or stop position. nd havent got the throtle body or MAF sensor cleaned.