You got a TSM as a spare that could be a life saver for your M3W in the future, if not just now. Until Alistair produces "a better TSM", failure of this small component makes life very difficult for the M3W owner, it is one of the "stopper items". The fact that you may not have needed it for the fault you had does not mean that you wasted your money entirely. Many indicator, ignition and hazard light related faults are caused by the TSM. The indicator relay is usually more reliable, although maybe not in your case but at least you have a TSM for diagnosis. Another informative top post Bunny.
