What causes ignition key to keep starter engaged and not let it release and start engine?

20

Asked by JPC240 Feb 14, 2013 at 01:22 PM about the 2003 Mercedes-Benz C-Class C 240 Sedan

Question type: Maintenance & Repair

Have replaced starter thinking that was the problem. Car typically starts right up. Has 50K very pampered
miles. Problem is when turning key the old and now new starter stay engaged turning the engine not
allowing it to run. Turning key off wait a second try again and normally it will start as it would always.
Once in a while it stays engaged again but after that typically starts right up. My wife is afraid to drive now
that it is being fussy. Any ideas?

7 Answers

So what we can tell from this thread, is the starter solenoid isn't letting go, and stays engaged after the engine is already started? This is happening with your second starter, but did not happen with the first? Not enirely sure which device is causing your complications. Will check your schematic to see if something like a 'run' switcher is not switching or stuck on? let me know if this is a starter problem or a run problem~

3 people found this helpful.
20

The old starter worked fine until we had this problem with the starter solenoid staying engaged. Changed out the starter...not fun having to drop the entire exhaust system to do so. Then for several weeks all was fine and then the same problem started again with this new starter. So it appears that the original starter and now the new starter are not the problem. Best as I can see it may be the ignition switch but have no way of knowing. No error codes or other issues have cropped up. Hate to think we spent $400 for a new starter for nothing...

2 people found this helpful.

inspect every little thing that could possibly have been bumped in the second starter replacement including along the firewall perhaps something was bumped or partially disconnected looks like it's still disconnected. re-do any running connections look around what systems were disturbed in this second starter replacement. Something was disturbed, a connector, a plug, a jack something came unplugged?? really need to get up close and personal if I'm going to have to see what is really going on here....inspect!

1 people found this helpful.
10

I also have the same problem with my c320 2001. In the beginning it was inability to start it only greeted me with malfunction message. I changed cranck shaft sensor In vain. And not when I pushed the key in to position 2 the light goes off immediately and say malfunction the starter don't even move. Plz any suggestions.

1 people found this helpful.
20

Going to buy a 2003 Mercedes-Benz but the when it starts and sound like the starter is dragging what do you think

2 people found this helpful.
20

did anyone figure out the problem i am having same issue with my 2004 c230k sport coupe hatchback its like it is getting stuck trying to crank but cranks fine when i turn key off and back on.

2 people found this helpful.
10

Hi all I am new to this but my wife’s A190 did exactly the same as all of yours, simply squirt some DRY graphite powder into your ignition ( where the key goes in) and it will free up the switch internals allowing the relay to return

1 people found this helpful.

Your Answer:

C-Class

Looking for a Used C-Class in your area?

CarGurus has 16,784 nationwide C-Class listings starting at $1,400.

ZIP:

Own this car?

Share your experience with others.

2003 Mercedes-Benz C-Class

Review another car

CarGurus Experts

  • #1
    Lorne Grandison
    Reputation
    12,450
  • #2
    zabi
    Reputation
    5,600
  • #3
    PPC123
    Reputation
    5,150
View All

Know more, shop wisely

Search

Related Models For Sale

Used Mercedes-Benz E-Class
742 Great Deals out of 10,063 listings starting at $950
Used BMW 3 Series
1,161 Great Deals out of 12,961 listings starting at $516
Used Mercedes-Benz S-Class
327 Great Deals out of 6,894 listings starting at $2,499
Used BMW M3
50 Great Deals out of 1,069 listings starting at $13,495
Used BMW 5 Series
848 Great Deals out of 11,227 listings starting at $825
Used Chevrolet Corvette
692 Great Deals out of 12,034 listings starting at $3,046
Used Lexus IS
294 Great Deals out of 5,262 listings starting at $1,000

Used Cars for Sale

2024 Mercedes-Benz C-Class For Sale
78 Great Deals out of 6,981 listings starting at $41,994
2023 Mercedes-Benz C-Class For Sale
154 Great Deals out of 1,485 listings starting at $34,888
2022 Mercedes-Benz C-Class For Sale
40 Great Deals out of 295 listings starting at $28,998
2021 Mercedes-Benz C-Class For Sale
117 Great Deals out of 1,021 listings starting at $19,995
2020 Mercedes-Benz C-Class For Sale
97 Great Deals out of 1,048 listings starting at $16,526

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. Content will be removed if CarGurus becomes aware that it violates our policies.