2000 S500 - key won't turn/battery is dead

Asked by Mar 05, 2015 at 08:50 PM about the 2000 Mercedes-Benz S-Class S 500

Question type: Maintenance & Repair

Over the last week or so, the car would struggle a little more and more every time I
turned it on. Finally the other day, I tried to get into it and it wouldn't even unlock with
the remote. I used the blade key and got in and tried to turn it in and the key turned,
dashboard lit up very briefly, then it died. Now, I can't even get the key to turn
(assuming the infrared isn't even turning on to see the key). I just tried to jump it with
my friends car and it still wouldn't let me turn the key. This battery is no more than a
year old, as the same thing happened a year ago and we just replaced the battery. Is
there such a thing as a battery being too dead to be able to jump it? Do I need to go
buy a battery charger and just allow the battery to charge over night and try again
tomorrow? If not that, can I go buy a new battery, use cables to charge the battery as
it sits in the car, then just return the battery? Thanks guys.

2 Answers

30

I'm having the exact same problem on my 01 as well. Did you ever find a solution?

3 of 3 people found this helpful.
10

Did u ever jump the car under the hood? If not and some years don't have a jump spot for the positive cable...I have attached it rite to the starter or alt wire the thick ones on it to give it enough to atleast unlock. Hope it helps

1 of 1 people found this helpful.

Your Answer

Mercedes-Benz S-Class Experts

  • #1
    Tom Demyan
    Reputation
    790
  • #2
    Michael Kane
    Reputation
    570
  • #3
    marydudley47
    Reputation
    480
View All

Related Models For Sale

Used Mercedes-Benz E-Class
701 Great Deals out of 22,767 listings starting at $1,450
Used BMW 7 Series
119 Great Deals out of 5,117 listings starting at $2,499
Used Mercedes-Benz C-Class
900 Great Deals out of 28,619 listings starting at $2,000
Used Mercedes-Benz SL-Class
63 Great Deals out of 3,522 listings starting at $4,500
Used Land Rover Range Rover
64 Great Deals out of 4,402 listings starting at $2,999
Used Mercedes-Benz G-Class
10 Great Deals out of 905 listings starting at $19,980
Used Mercedes-Benz CL-Class
18 Great Deals out of 519 listings starting at $5,500
Used Audi A8
63 Great Deals out of 1,791 listings starting at $4,300
Used BMW 5 Series
519 Great Deals out of 15,569 listings starting at $1,650

Used Cars For Sale

2018 Mercedes-Benz S-Class For Sale
2,770 listings starting at $90,895
2017 Mercedes-Benz S-Class For Sale
5 Great Deals out of 483 listings starting at $75,979
2016 Mercedes-Benz S-Class For Sale
9 Great Deals out of 204 listings starting at $59,855
2015 Mercedes-Benz S-Class For Sale
60 Great Deals out of 1,147 listings starting at $39,900
2014 Mercedes-Benz S-Class For Sale
9 Great Deals out of 403 listings starting at $38,496

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.