Hello i am a new member my name is Nick. I want to share my fault with my 2006 Audi A3 S Line TDI with other Audi owners, so i hope this may help others out that may find they come across the same fault.

It started intermittently my car run fine but them randomly just would not crank over to start when at the 3rd stage of the ignition i.e. when all your lights come on the engine did not crank at all. I began checking all the basics battery power voltage and so on. I am no Mechanic but am not affraid to get stuck in any hows i stipped out underneath steering wheel all plastics ebentually exposeing the fuses and Relays i removed each relay looking for signs of corrosion or burn out, i found nothing of concern and then using my electrical multi tester checked each Relay had an ohms reading, once i had confirmed all ok i refitted the relays and tryed to start the car. The car still did not start i then still pursued with the Relays this time leaveing them in there places. Using my left hand to hold the key in to starting position i then used my right hand all at the same time and went through each Relay Tapping with a splanner adventually i came to the last Relay which i choose to be the last one to tap and hay presto the car Fired up.

Happy Days 😀😀😀. So issue to car wont start seems to be identified as a Dodgey Relay. I do not know what this Relay is for but it was stopping the car from Starting.

The Relay No. Is 433

If anyone knows what this Relay does please tell me. I hope my info i have shared will help others out.

Car wont start 

Check Relay 433 this got my car to start 

Cheers 

 

 

Hi Nick...and welcome to the Forum

Thanks for the information, very handy indeed!

If it's okay with you, I will tutorialise the information and put it up in the Guides and Reviews section for all to see.

Once again, thanks for sharing that very handy tip

Cheers  Trevor