If you contemplate buying the simple service light rest tool its probably better to spend a bit more and equip yourself with a good code reader that also resets service lights, the Creator 310+ is what I have and for circa £50 its worth having but you will need the 20pin to 16pin obd2 cable changer to use it on the Z3 by plugging into the round diagnostic socket in the engine bay as that reads all modules on the car. If you have a 16pin obd2 socket under the steering wheel that only reads the engine and transmission modules not the airbag module.
HOWEVER - be aware that the Creator 310+ does not and will not work on pre-March 1998 build date Zeds. The only thing it will communicate with is the Engine Control Module, and that’s using a 16 to 20 pin connector.
For post-March 1998 build date Zeds, just as Colb says, I understand it’s a very good bit of kit.
For more info look at post #7 by
@NZ00Z3 in the following recent thread:
Hi All, So the car has had a couple of little issues just recently where it has started to run rough for a few minutes about 5 minutes after start up. Having checked for the normal things manually like split pipe etc I have taken it to the local garage to have it looked at professionally...
www.zroadster.org
