My 02 Audi a4 1.8l just failed to startup.
Car was fine before I replace valve cover
gasketseals, spark plugs seals N
sparkplugs even afterwards... In the
morning I warm up the car, after shut it off
N I pulled the coil to check my previous
work N I noticed electric sounds coming
from spark plugs harness wire so I quickly
disconnect battery put coil in then start it
up then the problem happened.... Car turns
over...... Car cranks.... Car won't start pls
Make sure you tightened the ground harness. Also make sure the coils are plugged in securely. Check for vacuum leaks.
Thank u I will try...
Found the problem, it was the relay fuse located underneath steering wheel.... After running all electric test I had no short circuit but did found that fuse #29 20amps yellow blew up... I attempt to replace new one N it blew again right away so it came to my mind that relay is causing buzz fuse blow, but after I removed all the relay fuse n put them back in(no new relay fuse bought) I replace fuse #29 N before I remove relay fuse I remove battery first so pls remove car battery or disconnect so anyways I put battery back N boom fires right up......
Correction: no need to pull relay fuse just disconnect battery for 5 mins, replace yellow 20amp fuse connect battery then boom its good to go....
Looking for a Used A4 in your area?
CarGurus has 11,992 nationwide A4 listings starting at $800.
Search Audi A4 Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Audi A4 Experts