A4 1.6 2003 HT Leads Problem
 

Hi,
I am new, Hi. From Ireland.
I normally don't drive an Audi but since my own car is being worked on
I have borrowed my father-in-law's A4 and it is running rough.

There is visible sparking where one of the ht leads connects with the coil.
Can anyone point me in the direction of a simple R&R of HT leads for this vehicle?
I am proficient at doing this kind of job but I don't even know how to release the large clips that clamp the air filter housing to the air pipes on an Audi.

A4 RHD 1.6 2003
WAUZZZ8E63A386713
04
ALZ2043
052003

Thanks for listening.
Darragh