Johneboy

Wow - First post to this forum and I am blown away by the volume of responses. As I see it, the next steps are: 1) Measure the resistance on the rear sensors and remeasure the front sensors 2) Get the vagcom codes (I live in Amersham, work in Milton Keynes (someone has to))... any vagcom owners nearby? 3) Check out the ABS relay - where is this and how should I tell if its duff? 4) Check out the pedal position sensor - where is this and again how should I tell if its duff?

Hi I have had my Corrado VR6 for about 3 years now. Brilliant car.... but I have the dreaded "ABS light on" problem and an MOT looming. I have scanned the forum messages and can't see anything that corresponds to the precise symptoms my car is showing. These are: 90% of time ABS light comes on with the ignition and never goes out 10% of time ABS light starts off... but will typically come on 10 to 20 minutes into a trip This is a situation that has got gradually worse... it used to be ok 90% of the time. When the ABS light is off, the ABS system works fine... and when the light is off it definitely does not (mucho scary moments). I have measured the resistance on the front 2 sensors (not got round to doing the back ones yet) and the values are as expected (12k ish). Given the ABS light is typically on at startup, should I assume this cannot be a sensor problem, or does the beast have some sort of memory of previous faults? The stealer "thinks" the computers knackered... but they are not sure and I forgot to ask for the VAG-COM codes. The progressive degradation of the ABS makes me think its not a computer problem. I would kinda expect it to either work or not work Any advice/ideas most welcome