I try starting my 2005 MCS and all lights come on, I hear
clicking and whirring, the headlights flash, but nothing else
happens. I try jump starting with a jump starter with same
response. With a voltmeter I test the battery and it
reads 13volts. What else can I do short having it
towed?

 

Check the connection of that and get solved for the problem.

 

I just had the same problem happen to me. The problem is that the immobilizer kicked in for some reason. If you have another key that may work, but really the only way to fix the issuse is to reset the immobilizer by the dealer or a shop. And if it is a manual you can pop the clutch to get it started but if it isn't than your dead in the water.

 

Pulled the 5 amp fuse under hood of 2003 r53 s model in the fuse block it is the first one facing the car from the front under hood while the car was running ,i did it checking fuses and the car cut off. I put it back and checked rest of fuses got in car and tried to start and nothing no dash lights oil light no nothing ,not a sound if anyone knows of a solution it would help a lot so thanks in advance .

 

David, ever find a solution for your starter issue?
My starter whirrs and grinds when it's cold.