1995 Mercedes S320
 

Hi All. I was driving my car on Friday and started hearing a slight ticking/almost "faint bell" sound coming from the right hand side of the vehicle. Seemed to be originate in the dash board/glove compartment on the passenger side. Turned off music, ac and pulled over still making the tick/clicking noise. Then I turned OFF the car and could not get it started. I waited for about an hour and it fired right back up. It still had the ticking noise. I drove it about 15 minutes and it was still ticking. When I put the car in (N, P, or D) it made the noise. Only when I put the gear in (R) did the sound leave. When I turned the car off, it would not start again. - 139K miles on it