C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

my 2007 c230 wont start randomly?! please help?!?!?!?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Oct 3, 2011 | 05:01 PM
  #1  
skill a pure's Avatar
Thread Starter
Newbie
 
Joined: Oct 2011
Posts: 3
Likes: 0
c230 2007
my 2007 c230 wont start randomly?! please help?!?!?!?

hey guys, drove the mercedes one day, i went to work, went home, then when i tried to start the car a bit later, it just didnt start...

i have read a thread on practically exactly the same thing, but i the only thing that is different is that this guys car cranks, but mine doesnt crank...

im not sure if its the feul pump? or the cps?

here is the thread on the similar problem... let me know please

http://www.benzworld.org/forums/w203...-wtf-need.html
Reply
Old Oct 3, 2011 | 05:28 PM
  #2  
skill a pure's Avatar
Thread Starter
Newbie
 
Joined: Oct 2011
Posts: 3
Likes: 0
c230 2007
07 c230 doesnt start, need help please

i looked at a different thread, and the same problem happened. but the different thing is that my ignition doesnt crank...

i mean the car war driven to work, then back home, then when tried to start... it just wouldnt start... this happened before, i just really want to get rid of the problem this time

this other thread, the link below has the description which is the same, the only difference is that my car doesnt crank.
i dont know if his didnt crank later on or not? but i cannot get a hold of him through messagin. please can someone help me out here?
if i dont sum up my problem... read the thread link below just to get a better idea... thank you!

https://mbworld.org/forums/c-class-w...here-look.html
Reply
Old Oct 3, 2011 | 07:23 PM
  #3  
edgarinho10's Avatar
MBWorld Fanatic!
 
Joined: Jul 2008
Posts: 1,005
Likes: 0
2013 UFO
Make sure the shifter is in Park?
Reply
Old Oct 3, 2011 | 08:13 PM
  #4  
e1000's Avatar
Out Of Control!!
 
Joined: Nov 2005
Posts: 18,677
Likes: 9
From: OC
a quarter mile at a time
Is there a CEL? If so that's what you should check first.
Reply
Old Oct 4, 2011 | 08:21 AM
  #5  
johnand's Avatar
Super Moderator
 
Joined: Dec 2006
Posts: 2,403
Likes: 64
From: Camas, WA
2007 C230SS; 2014 ML350 BT
Check fuse 52 in the front SAM to see if it is blown. If so replace it with a 20A fuse. The TSB on this is posted in the Technical Information Thread.
Reply
Old Oct 4, 2011 | 11:03 AM
  #6  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Check Fuses 31, 52 & 57. If 52 has blown replace with 20 amp as per MB TSM in Techinfo section of stickies.
Reply
Old Oct 4, 2011 | 03:02 PM
  #7  
OneOfaKindTrini's Avatar
MBWorld Fanatic!
15 Year Member
 
Joined: Jun 2009
Posts: 1,833
Likes: 2
From: Queens, Ny
Nike Turbo Shox
Where you located?
Reply
Old Oct 4, 2011 | 06:07 PM
  #8  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Sorry for my duplicate post. John's did not show on my screen.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

 
story-1

7 Craziest Things AMG Gas Ever Built

 Verdad Gallardo
story-2

New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

 Verdad Gallardo
story-3

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-4

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-5

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-6

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-7

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-8

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-9

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
Old Oct 5, 2011 | 08:23 AM
  #9  
johnand's Avatar
Super Moderator
 
Joined: Dec 2006
Posts: 2,403
Likes: 64
From: Camas, WA
2007 C230SS; 2014 ML350 BT
Originally Posted by Glyn M Ruck
Sorry for my duplicate post. John's did not show on my screen.
Sorry Glyn, I merged the threads, as the OP made 2 separate threads for the same thing.
Reply
Old Oct 5, 2011 | 04:26 PM
  #10  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Understood!
Reply
Old Oct 14, 2011 | 09:28 AM
  #11  
Outkasted24's Avatar
Senior Member
 
Joined: Nov 2008
Posts: 475
Likes: 1
From: Tampa/Lutz, FL.
Correction, Drove An '05 C230 Kompressor SS
Same thing happens to me sometimes.
I believe the problem is in the Key.
If The car won't start, I take the key out and wipe my finger over the sensor at the end of the key and the ignition, Put the key back in, Turn it.... and Presto.
It's either that the key is dirty or maybe the battery is slowly going in the key itself.
Reply
Old Oct 14, 2011 | 09:36 AM
  #12  
LILBENZ230's Avatar
MBWorld Fanatic!
 
Joined: Jul 2008
Posts: 8,384
Likes: 800
2019 G70 6MT & 2022 Ford Maverick XL
The battery in the key isn't even necessary to start the car. It's something else with your car.
Reply
Old Oct 14, 2011 | 11:42 AM
  #13  
Outkasted24's Avatar
Senior Member
 
Joined: Nov 2008
Posts: 475
Likes: 1
From: Tampa/Lutz, FL.
Correction, Drove An '05 C230 Kompressor SS
well the reason I say that, Sometimes I can't even get the car to unlock unless I'm two feet away or press the fob buttons multiple times for it to work.
Doesn't the chip inside the FOB need a source of power to transmit the signal?
Reply
Old Oct 14, 2011 | 03:47 PM
  #14  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
The key requires a good battery for RF to work at a distance & IR to work close to the handle window.

Once the key is inserted in the EIS it is inductively powered to achieve handshake & authorise start.
Reply
Old Feb 16, 2012 | 09:48 AM
  #15  
niceguyftx's Avatar
Member
 
Joined: Jun 2011
Posts: 112
Likes: 0
From: Dallas TX
2004.5 c230k
Originally Posted by Outkasted24
Same thing happens to me sometimes.
I believe the problem is in the Key.
If The car won't start, I take the key out and wipe my finger over the sensor at the end of the key and the ignition, Put the key back in, Turn it.... and Presto.
It's either that the key is dirty or maybe the battery is slowly going in the key itself.
Did you ever fix this? Do you know why it happens? This happened to me last night

And OP I wonder if he figured out the problem too. I just replaced the fuse 52 with a 20 so we'll see if it continues to act up
Reply
Old Feb 16, 2012 | 09:56 AM
  #16  
LILBENZ230's Avatar
MBWorld Fanatic!
 
Joined: Jul 2008
Posts: 8,384
Likes: 800
2019 G70 6MT & 2022 Ford Maverick XL
If you're too quick sometimes it won't start.. I've had that happen to me. It's very rare. If it just happened once then I wouldn't worry too much about it.
Reply
Old Feb 16, 2012 | 04:20 PM
  #17  
niceguyftx's Avatar
Member
 
Joined: Jun 2011
Posts: 112
Likes: 0
From: Dallas TX
2004.5 c230k
Ok so I tried starting my car this afternoon and it still doing the same thing even after changing the fuse. Few tries later and it starts...so now check the cps?
Reply
Old Feb 16, 2012 | 04:56 PM
  #18  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
The CPS will not make any difference if it won't crank over. Does it crank over?
Reply
Old Feb 16, 2012 | 08:09 PM
  #19  
niceguyftx's Avatar
Member
 
Joined: Jun 2011
Posts: 112
Likes: 0
From: Dallas TX
2004.5 c230k
Um no crank. Just electronics turn on :/
Reply
Old Feb 17, 2012 | 11:21 AM
  #20  
pcy's Avatar
pcy
MBWorld Fanatic!
 
Joined: Mar 2004
Posts: 1,175
Likes: 24
From: Boston, MA
'14 ML350, '13 C220 CDI, '07 C280, '98 ML320
If I were you, I 'd check ground connections (at the battery as well as at the starter).
Then, I'd look at the ignition switch itself.
Reply
Old Feb 17, 2012 | 03:27 PM
  #21  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
If you have done fuse 52 then check the starter relay & earths/grounds. Try & jump start straight onto the starter motor to make sure the kick-in solenoid & motor are operative. There are some fusible links but they can't be erratic - It either works or it's blown.

Pray it's not an EIS.
Reply
Old Feb 20, 2012 | 01:31 PM
  #22  
niceguyftx's Avatar
Member
 
Joined: Jun 2011
Posts: 112
Likes: 0
From: Dallas TX
2004.5 c230k
so I decided to open my keys and see if that could be the problem too. Still not sure if it is, but i did see on the board where the secondary coil is, that there were gaps in the coils and I don't know if t hats the problem with the start? you electric experts would probably know.

I also just ordered the relay so I'll be able to determine if that's the culprit or not.
Reply
Old Feb 20, 2012 | 06:25 PM
  #23  
Glyn M Ruck's Avatar
Super Moderator
MBWorld Ambassador

 
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Show us a pic of the key internals. Moviela has a post on the forum that shows where the induction coil can come loose from the PC board.
Reply
Old Feb 22, 2012 | 10:20 PM
  #24  
niceguyftx's Avatar
Member
 
Joined: Jun 2011
Posts: 112
Likes: 0
From: Dallas TX
2004.5 c230k

KEY #1



KEY #1 Reverse side



KEY #2


KEY #2 reverse side

See the second key on the coil, there's some separation? Well turns out it's not the problem, because I finally tried my second key and even today my key would sometime not start the car.

I REALLY hope it's not the EIS! But would the EIS still not work if it recognizes the key?? =(((

Last edited by niceguyftx; Feb 22, 2012 at 10:22 PM.
Reply
Old Apr 10, 2012 | 11:14 PM
  #25  
niceguyftx's Avatar
Member
 
Joined: Jun 2011
Posts: 112
Likes: 0
From: Dallas TX
2004.5 c230k
more and more this problem persists =[

I just replaced the starter hoping my car would start normally each time but it still continues. It's actually gotten worse. Sometimes it'll take about 30 tries or so for the car to crank and turn on. I just ordered the CPS sensor though just as a last resort attempt at fixing this before sending the car off to a mechanic to diagnose.

if anyone has any suggestions on any other methods or fixes I could try, please help. thanks!
Reply


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 10:25 PM.

story-0
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-1
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-2
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-3
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-4
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-5
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-6
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-7
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-8
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-9
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE