key turns but no power to start engine.
MBWorld Fanatic!
Joined: Jul 2012
Posts: 1,254
Likes: 171
2002 CL500 to CL55 conversion
My 03 S500 4matic was starting fine no problems at all. Then with in minutes nothing. I turned the key and it just turned. No display on the dash, cannot move the gear shift. My lights, seats, radio, trunk, and locks work. My windows won't work. When I hooked up the diagnostic it would not read. There is no power to the ignition. Please help!
My 03 S500 4matic was starting fine no problems at all. Then with in minutes nothing. I turned the key and it just turned. No display on the dash, cannot move the gear shift. My lights, seats, radio, trunk, and locks work. My windows won't work. When I hooked up the diagnostic it would not read. There is no power to the ignition. Please help!
there is also another large fuse block on the rear wheelwell by the battery. From memory the box has a plastic cover that is more easily “snapped off” than removing the entire fuse box. Check with multimeter, if any fuses are blown it’s easier to replace the entire block
MBWorld Fanatic!
Joined: Jul 2012
Posts: 1,254
Likes: 171
2002 CL500 to CL55 conversion
I parked ny 2006 E350 MB. Came back minutes later to start it. Inserted fob key..ignition will not turn, interior lights not come on, no light on dash, no power supply, and car is dead.
I tried to jump start it. But when I connected the negative to negative and positive to posive I got a spark.
There is nothing I can do at this point.
No communication with icarsoft code reader.
Steering wheel is not locked.
Please help.
I tried to jump start it. But when I connected the negative to negative and positive to posive I got a spark.
There is nothing I can do at this point.
No communication with icarsoft code reader.
Steering wheel is not locked.
Please help.
small arc(spark) is normal, just make sure you connect positive first: you may also have a main fuse problem like i mentioned in my last post on this thread
Newbie
Joined: Oct 2018
Posts: 9
Likes: 1
Mercedes ML63 w164
What do the fuses look like?
Check the fuse block under the passenger foot well. There are 3 or so fuses molded into one fuse block. I blew mine changing the alternator and it showed similar symptoms, except the dash lights would come on. It only takes 10 minutes to check it and eliminates another possibility. If it is that fuse its only available from the dealer. Mine cost me around $150.
I see a black box with two positive connections and a ground, are the fuses inside that box?
MBWorld Fanatic!
Joined: Dec 2012
Posts: 2,474
Likes: 439
From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
Newbie
Joined: Oct 2018
Posts: 9
Likes: 1
Mercedes ML63 w164
Thanks
Newbie
Joined: Apr 2017
Posts: 5
Likes: 0
From: West Tennessee
E-550 Sport
Question
Check the fuse block under the passenger foot well. There are 3 or so fuses molded into one fuse block. I blew mine changing the alternator and it showed similar symptoms, except the dash lights would come on. It only takes 10 minutes to check it and eliminates another possibility. If it is that fuse its only available from the dealer. Mine cost me around $150.
how did you get the black box off? I have removed the cables and 10mm nuts that attack it to the floor but it’s as if something else is holding it from coming up around the heavy pos cable area but I can see anything holding it ! HELP!!
Newbie
Joined: Sep 2024
Posts: 2
Likes: 0
Needing help as well
Thanks for the help with the no power problem. We checked the fuse block on the passenger foot well and the little black fuse connection only read about .33. We ran an electrical wire from it to the hot point and the car powered right up. We will get a used unit from the salvage yard. Thanks again for all the input!
Which black fuse connection are you talking about. Can you provide pictures or more info. Having the same issue
