I have read that the early cars had a factory installed round relay (part 001 545 1624) that would activate the CSV for one second on a warm engine to aid in starting. I've also read that this relay may be added to a later car to assist with hard warm starts. I know that the harness ( part 108 540 1009) is also required for this modification. My question is, assuming I can find the parts, what is the procedure for adding this setup to a 280sl? I reviewed the starting aid tour in the manual but did not see the procedure described. Thanks