Question about 2001 BMW Z3
Convertible top sometimes works, sometimes doesn't. Apparently, this is a common problem. Wondering if I made a mistake buying this car !!!
In general, without any testing or diagnosis, you could be dealing with any of the following:
* Open relay - Located at the pump unit
* Close relay - Located at the pump unit
* End position micro-switch
* The operating switch itself
* An issue with the pump unit, but I doubt this, due to the intermittent nature. However, do check the hydraulic fluid level.
The windows do not have to be down for the system to run.
The brake pedal must be pressed while operating the switch. There is a switch at the pedal that signals the convertible top system, but if your brake lights are functioning, the brake switch will not be at fault.
The system is pretty simple and some quick electrical tests should locate the faulty item.
The Bentley repair manual for the Z3 has all of the electrical wiring diagrams, for use in the diagnostics. You can purchase this at Bavarian Autosport 800-535-2002.
Posted on Sep 03, 2009
Tips for a great answer:
Jun 24, 2011 | 1991 Porsche 911
May 18, 2010 | 2005 Volkswagen New Beetle
Mar 27, 2010 | 1998 Ford Mustang
Oct 26, 2009 | 1999 BMW Z3
Apr 07, 2009 | 1999 BMW Z3
Apr 06, 2009 | 2003 BMW Z4
Jul 04, 2014 | 2001 BMW Z3
Jun 24, 2014 | 2001 BMW Z3
6,925 people viewed this question
Usually answered in minutes!