Audi Original "S" Cars Discussion forum for the Audi Audi Ur S4, Ur S6, S2 & RS2

No start/crank

Thread Tools
 
Search this Thread
 
Old 03-04-2013, 06:29 PM
  #1  
AudiWorld Newcomer
Thread Starter
 
BaMmAsS's Avatar
 
Join Date: Sep 2012
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default No start/crank

93 urs4-

I've had battery woes in the past (illuminated windows switches etc.) Cut the 'yellow wire'- don't think I did this correctly- horn doesn't sound after locking, yet the switches remain on. I basically unplug the battery almost everything I get out of the car. Drove it like this daily for months


Problem- Yesterday the car wouldn't start- acting as if I had a failing cell again. Had the battery checked out and it is in full health.

What I noticed was when I'd plug the battery in there is full power to electronics/dash etc. As soon as I turn the ignition fully I hear a 'click' (same way as not enough power to crank, Car then has barely lit dash as if the battery has no power.
(only acts this way after the failed start).

Disconnect/reconnect battery, seems fine until I try to start.


I am certain the battery is not at fault (let's assume it is not a factor)- ecu seemed dry/cowl drain cleared...


What might be causing my problem? I'm speculating the constant on off of voltage might have blown a fuse...?



Advice appreciated- please & thank you.
Old 03-04-2013, 07:59 PM
  #2  
AudiWorld Super User
 
UrS4boy's Avatar
 
Join Date: Feb 2001
Posts: 18,801
Likes: 0
Received 6 Likes on 6 Posts
Default

Replace the Ignition switch since it causes problems when it fails:

http://12v.org/urs/IgnitionSwitchReplacementDIYRev1.pdf
Old 03-12-2013, 06:21 PM
  #3  
AudiWorld Senior Member
 
scarman's Avatar
 
Join Date: Sep 2009
Location: Knoxville, TN
Posts: 618
Likes: 0
Received 1 Like on 1 Post
Default

No sophisticated stuff here. Either the ignition switch is not actuating the starter relay and needs to be replaced as UrS4boy advises (best place to start repairs) or the starter or its connections have failed and you need to get dirty under the vehicle to repair that.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
johnd64
A8 / S8 (D3 Platform) Discussion
19
02-22-2016 10:26 PM
SpecialBuild87
Audi 4000 / Coupe GT Discussion
4
07-16-2008 05:03 PM
SilvrBulleTT
TT (Mk1) Discussion
4
06-28-2007 09:36 AM
coupe d'mike
Audi 90 / 80 / Coupe quattro / Cabriolet
5
11-30-2005 06:40 AM
audiringpwr
A4 (B5 Platform) Discussion
2
01-13-2004 09:38 AM



Quick Reply: No start/crank



All times are GMT -8. The time now is 11:52 PM.