W203, C230, 2003 KOMPRESSOR

In nutshell here is the problem : When ignition switch turned it makes one click sound - no turn of engine no starter noise. So, I turn key back to OFF. Then I turn it back ON and it does one click sound again . This repeats for dozens of times and eventually starter engages and starts the engine, albeit with sounds of barely having enough power to start.
Battery newer. Alternator newer. Autozone checked all the amps measurements, battery and connections - they fine. Car has 176,000 miles.
thx
This is my first post. I have a 2003 C230 coupe (recently purchased). My problem is that my indicators only flash 3 times then stop (both sides). Dealer (not Mercedes) says its just a switch/relay they are waiting for to replace.
My research so far indicates that there is no relay as the indicators are run by the front SAM unit.
Also after reading a previous thread I am wondering if it is just a simple reset issue as per the setup for the 3 flash lane change to be cancelled???


