[Vwdiesel] trouble-shooting TDi ABS system (also VAG-COM issues)

[Rolf Pechukas]

no, it’s an USB connector
although my mom may have an ancient dinosaur PC laptop that might have a real serial port
standby…


On Aug 1, 2014, at 6:41 PM, Tad <tadc at europa.com> wrote:

> The ABS unit is just adjacent/below the brake res, it has a "big round thing" (ABS pump motor?) on it.  
> 
> There's a VagCom routine to help bleed the ABS, but if I were you I wouldn't go messing with that without a better idea of what was wrong.  
> 
> Does your computer have a "real" serial port(most don't these days)?  The old style cables (knockoff or otherwise) don't do well with serial port emulators.
> 
> 
> 
> On Fri, Aug 1, 2014 at 11:39 AM, Rolf Pechukas <rbp at 4u2bu.org> wrote:
> hi all
> 
> 2001 TDi Golf
> 
> ABS light is on
> 
> braking is a little shuddery
> 
> I own a cheap knockoff VAG-COM cable that I can’t get to work, even with earlier ver 409, which is supposed to be compatible
> 
> anyone know a bulletproof way to drain/refill brake fluid so that ABS module + all 4 wheels/sensors are happy?
> 
> (I like the idea of injecting fluid upstream, from the bleed nipples toward the reservoir - bubbles rise)
> 
> is there any mechanism to bleed air from the ABS module? and where TF is it, anyway?))
> 
> (it could be a failed sensor, but w/o VCDS, hard to tell)
> 
> thanks!
> 
> Rolf in MA
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