Ok
I think my tct needs replacing my s2k sounds like my disel bmw sometimes and i thibk its not a very expensive part to replace/fix. Just wondering if theres a pernament replacement that i can replace to ensure this problem doesnt reoccur? Cause from what i read they can need to be fixed every 20k kms to 40k kms depending on how you drive? So is there a aftermarket part i can replace with?
Thanks in advance

P.s excuse my bad spelling and grammer