Hi all! I’m new here and recently bought a 2002 Z3 Roadster 2.5. The DSC and Brake light were popping up periodically and then disappearing on and off for the last couple of weeks, but now for the past few days they won’t clear. Brake fluid is good but I also think that has its own warning light. I don’t have a users manual and online searching for this hasn’t really helped. Has anyone had this issue or have any ideas?
Help with warning lights
- Thread starter UCop303
- Start date
BMW Z3 - 2002 BMW Z3 USA Owners Manual
USA version of the BMW Z3 Owners Manual PN 01410156441 Covers the following models BMW Z3 Roadster 2.5i BMW Z3 Roadster 3.0i BMW Z3 Coupe 3.0i
zroadster.org
Google is a wonderful resource!
- Joined
- Apr 1, 2016
- Points
- 218
- Location
- Maybole , South Ayrshire
- Model of Z
- Z3 Individual Dakar / Orinoco Individual
You really need to get it plugged in to a diagnostic tool as there is a number of things could be creating the fault.
You have 4 abs wheel sensors ( and associated wiring)
2 pressure sensors on master cylinder
Abs pump unit
Yaw sensors under passengers seat ( will fail if roof leaking and water getting under carpets.
So next step is to get fault codes read see whats creating it (even if lights go out fault still stored in memory untill interrogated and cleared.
Stephen.
You have 4 abs wheel sensors ( and associated wiring)
2 pressure sensors on master cylinder
Abs pump unit
Yaw sensors under passengers seat ( will fail if roof leaking and water getting under carpets.
So next step is to get fault codes read see whats creating it (even if lights go out fault still stored in memory untill interrogated and cleared.
Stephen.
You will need a scanner with BMW software and a 20 pin to OBD adapter as you have to use the 20 pin diagnostic port under the bonnet/hood.
A cheap set up is to use INPA and the correct cable. In formation on the cable and INPA can be found here: https://www.bimmerforums.com/forum/...tions-Experiences-Discussions-Experimentation
A cheap set up is to use INPA and the correct cable. In formation on the cable and INPA can be found here: https://www.bimmerforums.com/forum/...tions-Experiences-Discussions-Experimentation
As I stated, online searches didn’t result in anything but thank you for your response.BMW Z3 - 2002 BMW Z3 USA Owners Manual
USA version of the BMW Z3 Owners Manual PN 01410156441 Covers the following models BMW Z3 Roadster 2.5i BMW Z3 Roadster 3.0i BMW Z3 Coupe 3.0i
Google is a wonderful resource!
Thank you! I will look into the INPA option.
Thank you. Scanner used in the port near passenger footwell didn’t show any codes. I’ll look into 20 pin port with name scanner that another member recommended.
- Joined
- Apr 1, 2016
- Points
- 218
- Location
- Maybole , South Ayrshire
- Model of Z
- Z3 Individual Dakar / Orinoco Individual
Yes the under dash obd doesn't give much access.
The 20 pin under bonnet is the nain point of access.
16 to 20 pin obd adapter plenty available on Ebay and the likes.
Once codes read that will take you straight to the problem.
Stephen.
I stand corrected. Thank you for the link to the owners manual. This is what it says…BMW Z3 - 2002 BMW Z3 USA Owners Manual
USA version of the BMW Z3 Owners Manual PN 01410156441 Covers the following models BMW Z3 Roadster 2.5i BMW Z3 Roadster 3.0i BMW Z3 Coupe 3.0i
Google is a wonderful resource!
Just hope it's not either (or both) yaw sensors under the carpet. They are very expensive. Ask me how I know.
I just researched that and looks like it’ll be about $1k each installed. Fingers crossed that’s not it. New BMW scanner and 20 pin adapter will be here on Saturday.
Check your brake fluid level. I had these lights would flicker on and off ocassionally. Turned out that the fluid was right on the minimum.