I have a skoda octavia mk2 1.9pd,with 1 lakh kms on odo, unfortunately it met with an accident and was with mechanic for more than a year,but now it sounds very rough and undrivable,I got it repaired in first place because it was less driven and I love the car very much for it's sturdy feel,but now I feel my head was stolen and replaced with worn out head,how to get the engine to it's original condition

https://youtube.com/shorts/WDrIms-q_a4?si=ZP4jdqBS78VkU8Z4

Edited 19 January19 Jan by vinodreddy
To make the youtube video thumbnail visible

1 hour ago, vinodreddy said:

I feel my head was stolen and replaced with worn out head

I doubt that happened

1 hour ago, vinodreddy said:

with mechanic for more than a year

Maybe sitting around for a year lead to lack of lubrication in cam etc and maybe when they started it they didn't prime the oil system.

Almost sounds like diesel engine injection clatter.

Maybe give the fuel system a good clean out and give an oil change

I have done liquimoly diesel purge direct method to clean injectors,also will change engine oil with synthetic one and add liquimoly mos2,as the current one might be mineral oil