S Won't start :(
Thread Starter
Member
Joined: Jun 2014
Posts: 110
Likes: 1
s550
S Won't start :(
Hi Guys, hope that I can find some ideas before I call the tow truck.
2009 S550 104k Miles
Issue: Car was running fine, turned off in the driveway and that was it. Car won't turn over at all. you can press the start , nothing, you can try with the key nothing , no click, no attempt to start, nothing, I replaced the battery because I found the old one low in voltage, nothing, I have checked the start fuse, it looks good, checked the two start relays looks OK, changed the key batteries nothing, the only thing that I have notice is that you can lock the car but the mirrors won't fold in as usual, not sure if that's related to anything, last year, I replaced the small battery and all the info appears on the display as normal.
Anything I should look into?
2009 S550 104k Miles
Issue: Car was running fine, turned off in the driveway and that was it. Car won't turn over at all. you can press the start , nothing, you can try with the key nothing , no click, no attempt to start, nothing, I replaced the battery because I found the old one low in voltage, nothing, I have checked the start fuse, it looks good, checked the two start relays looks OK, changed the key batteries nothing, the only thing that I have notice is that you can lock the car but the mirrors won't fold in as usual, not sure if that's related to anything, last year, I replaced the small battery and all the info appears on the display as normal.
Anything I should look into?
Super Member
Joined: Aug 2013
Posts: 779
Likes: 205
From: Texas
63 Falcon vert
From experience with other cars not starting as you describe, you might check the nenegative ground connection (not the terminal). I have no clue where the cable attaches or how but I know what happens if that connection is not secure or clean. And it's probably hard to get to.
Good luck.
Good luck.
Senior Member
Joined: Nov 2017
Posts: 389
Likes: 52
Mercedes Benz S600
+1 for the starter. Had a Honda do the exact same thing. It ended up being the starter, it just up and died while I was pumping the gas and went to start it again.
Junior Member
Joined: Oct 2013
Posts: 65
Likes: 2
From: Bay Area, CA
2012 S550
Well, maybe not on a Benz starter, but I've gotten other cars moving with that trick...
-MB
