sisyphus
Veteran Member
- Joined
- Dec 8, 2008
- Location
- Appleton, Maine
- TDI
- 99.5, '01 A4 Jetta sedans, 5 sp box, Hamman mod, Joey mod, Bilsteins, 2.00" lift
'01 Jetta sedan, about 280K miles. Over the winter I got an ABS light on the dash, it had been intermittent and upon scanning w/ VCDS got the code that said the speed sensor on the front left was faulty. Fair enough. So I replaced it. ABS light still on, so I reset the codes etc and it still came back as a bad speed sensor. So I replaced it again a week later. Never know what you're going to get at the local parts store, you know. STILL, the computer couldn't see the speed sensor, so I said, "Eff it," got the plug and replaced the wiring as far up as I could go before going through the bodywork inside the wheel well (soldered connections). Same result, no joy. Then the ABS light went off, in that I had ABS again for a week. Cool. Then it was on again, off again, all spring and now here the ABS kicks in when braking for no reason on dry pavement, when the car says I have ABS. If I don't have it at the moment the car brakes fine, provided I don't actually need ABS in that moment in particular. I suspect the ABS is actually doing something while I'm driving the car sometimes, making that noise. But it's hard to investigate.
Curiously, twice in this period (from about January until this morning) the brake light came on in the instrument cluster, flashing and beeping. Low brake fluid. I have no idea where the brake fluid has gone. This car has the better brakes of the two TDI's I own, no history of bad calipers, anything like that.
I'm at a loss here. Do I replace the ABS module? How hard a job is that?
Curiously, twice in this period (from about January until this morning) the brake light came on in the instrument cluster, flashing and beeping. Low brake fluid. I have no idea where the brake fluid has gone. This car has the better brakes of the two TDI's I own, no history of bad calipers, anything like that.
I'm at a loss here. Do I replace the ABS module? How hard a job is that?