y not u just send to a workshop and have it a thorough check by the mech before conforming to repair the car?

Based on the advice of the bros here had given, a second opinion from the mech allows u to know whether the mech is bullshitting u to part with ur $$ or he's honest with u.

In the meantime, u can ask more abt these tech. info which are hard to explain to u in words. Then only u plan ur next step.

Hope this helps.

cheers.