Mercedes Benz repair: Mercedes 560 SEC Electrical- Dies, mercedes 560 sec, mercedes benz 560sec

Question
Hello:

I have a 560SEC with 170K miles on it.

The power dies out- could not start it, the clock worked for a while then stopped.

Jumpstarting the battery allowed me to drive it the 1.5 Miles to get it home, but then it kept dying over and over again.

Alternator I think is OK, battery is reasonably new (1 year old).

Any ideas/suggestions appreciated.

John  

Answer
What year model 560SEC?

Best guess:
Overload Relay is bad.

PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1990 Mercedes Benz 560SEC
Part: Overload Relay
 Note:  
Aluminum cover with bracket : contains (2) 10 amp ATC fuses on top .     
 Year: 1988-

P2056-18126 Overload Relay IN STOCK $74.99  

http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=merc...