Audi coupe 1990 20v coupe abs problem

[Todd Young]

I think you might want to flush your brake hydraulic system, and perhaps 
even start replacing parts. Have you checked the caliper guide pins? 
When was the last time the calipers were serviced? How old is the master 
cylinder?

Fred no wrote:
> HI i have a problem with my 20v coupe quattro most of the times when i 
> apply the brakes the antilock engages while wheels are still truning... 
> This results as less braking or no braking at all sometimes... this is 
> very scary pumping the brakes sometimes you can find a hole where you 
> can go tru the abs and actually brake. No wheels lock when this happens 
> (while pushing like a maniac) sometimes slow sometimes fast.Pretty scary 
> went thru a stop today on asphalt...  dint want to brake..
> Anyone that had similar problem or could help me out?The bently has 
> almost no information on this subject only how to use the bosh abs 
> tester witout it theres nothing useful to help me test anything. The 
> only thing i can do right now is maybe visually check the teeth on the 
> cv joints... and the connections.
> 
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-- 
Todd Young
7079 Dawn Ave. E.
Inver Grove Heights, MN 55076