

Update and a few questions for you z3 pros
Posted a few weeks back about valuation on an 02 2.5i I was being offered, and then I bought it! $4,700 with a mint condition hard top, total steal for a solid running car with no rust and no CEL.
Been driving it a few weeks now and have noticed a few things I can’t seem to pin down with just google searches:
- DSC light/brake light combo. I know this can be anything from sensors to the module solder joints, etc, but the way it manifest
s
- is very specific. I start it up, no lights, drive for 30 min or so and then I get a weird quick vibration,
a quieter
- version of what it sounds like when the ABS is activated. Like less than a second, and then the DSC light and brake light come on. No ABS light, no engine codes. I don’t have a BMW scanner to read the ABS module yet.
- speed-specific shuddering: at about 25-35 mph with the worst happening around 30, I get a strong shudder in what feels like the entire car. It’s not a sharp vibration, but more like you are going over rapidly bumpy pavement. I have varied gear and RPM and it’s consistent with vehicle speed and not engine speed. Google says it’s likely driveshaft bearing but wondering if anyone else had a similar issue before I start randomly replacing driveline components.
Thanks in advance, this is my first Z3, one of the most fun-per-dollar cars I have ever owned.