C240 Engine Died While Driving
07-14-2014, 09:36 AM
#1
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2002 C240, 2006 ML350, 2011 X3
C240 Engine Died While Driving
Hey guys,
I've had this problem happen twice so far (within a month apart) with similar conditions:
- after long periods of highway/freeway driving
- accelerator "loses" response
- engine shuts off
- gas gauge shows 1/4 tank
- the electrical system + AC works fine
- hours later, the car starts up fine
Work done so far:
- Dealer diagnosed as CPS the first time and swapped the part for $300-400ish
Now waiting on another dealer diagnosis, since this happened very recently.
The symptoms mimic this thread:
- http://www.benzworld.org/forums/w203...e-driving.html
Culprit: fuel pump/filter?? worth the fix @ 215K KM?
I've had this problem happen twice so far (within a month apart) with similar conditions:
- after long periods of highway/freeway driving
- accelerator "loses" response
- engine shuts off
- gas gauge shows 1/4 tank
- the electrical system + AC works fine
- hours later, the car starts up fine
Work done so far:
- Dealer diagnosed as CPS the first time and swapped the part for $300-400ish
Now waiting on another dealer diagnosis, since this happened very recently.
The symptoms mimic this thread:
- http://www.benzworld.org/forums/w203...e-driving.html
Culprit: fuel pump/filter?? worth the fix @ 215K KM?
Last edited by londonbenzkid; 07-14-2014 at 09:39 AM.
07-14-2014, 10:21 AM
#2
Out Of Control!!
Do they warranty service work up there for a year like they do here at dealers in the US? If you're lucky, it's a bad CPS, and should be covered (talk to the Service Manager if they hassle you).
Though I'd start to look around your area for an independent MB repair shop; your C240 is old enough that these repairs will come up fairly frequently now.
Though I'd start to look around your area for an independent MB repair shop; your C240 is old enough that these repairs will come up fairly frequently now.
07-23-2014, 08:36 AM
#5
Super Moderator
Yes it could well be the MAF. It that does not cure it & we would like to know stored codes then it only leaves the ignition system or low fuel pressure.
07-23-2014, 11:26 AM
#6
Super Member
Important to change CPS with good quality Mercedes OEM CPS and not cheap clones which has higher failure rates. If this happens again, pour some cold water over CPS area to cool down CPS and then try restarting car.
CPS, MAF, fuel filter, etc,... many of these fixes you could do yourself, lots of DIY info here. MAF and throttle body usually just require a good cleaning using a CRC $10 spray product. Fuel filter can get clogged over time especially if you use Petro Canada high ethanol gas.
With STAR dealer should be able to pin-point issue but your dealer is just throwing parts at the car,... at your expense! Find a good MB-indy.
Since you're in Canada, eh? with W203/CL203 and insist on dealing with dealer, sign up for Mercedes-Benz Loyalty Circle and get 20% off parts and labour:
https://keepitgenuineforless.ca/en/benefits
CPS, MAF, fuel filter, etc,... many of these fixes you could do yourself, lots of DIY info here. MAF and throttle body usually just require a good cleaning using a CRC $10 spray product. Fuel filter can get clogged over time especially if you use Petro Canada high ethanol gas.
With STAR dealer should be able to pin-point issue but your dealer is just throwing parts at the car,... at your expense! Find a good MB-indy.
Since you're in Canada, eh? with W203/CL203 and insist on dealing with dealer, sign up for Mercedes-Benz Loyalty Circle and get 20% off parts and labour:
https://keepitgenuineforless.ca/en/benefits
07-23-2014, 04:26 PM
#7
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2002 C240, 2006 ML350, 2011 X3
i feel like they are throwing on parts as well -_-
but yeah if this happens again... i would like them to print off the codes and I will post them for you guys to check out.
I appreciate the help everyone!
hopefully my car doesn't stall and die lol
PS SunnyRay, saw your post a long time ago regarding the 20% discount and have been using it whenever i go to the dealer
- hard to find a good MB indy in London ON; with this issue - I thought the dealer would better diagnose the problem with STAR
but yeah if this happens again... i would like them to print off the codes and I will post them for you guys to check out.
I appreciate the help everyone!
hopefully my car doesn't stall and die lol
PS SunnyRay, saw your post a long time ago regarding the 20% discount and have been using it whenever i go to the dealer
- hard to find a good MB indy in London ON; with this issue - I thought the dealer would better diagnose the problem with STAR
Last edited by londonbenzkid; 07-23-2014 at 04:29 PM.
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08-02-2014, 09:28 AM
#8
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C240
WHAT HAPPENED??!!? My c240 is doing the SAME thing. When I first bought it, it left me stranded on the interestate twice in a week! 1/4 tank it acts like it runs out of gas, both times it happened as im driving down the interstate. I added gas and it would start up fine. My dad changed the fuel filter and got into the gas tanks to make sure everything was connected right. So far it will go down to the gas light and looks like the issue is resolved but then again Im not sure if he's run it on the interstate in the same conditions to see if it will happen again.
08-02-2014, 03:13 PM
#9
Super Moderator
You might have had a clogged fuel filter or malfunctioning fuel pressure regulator. On your model the pressure regulator was built into the fuel filter.
Check the fuel pressure at the Schrader valve on the front fuel rail that connects the injectors. S/B > 3.8bar or 55psi while cranking.
Check the fuel pressure at the Schrader valve on the front fuel rail that connects the injectors. S/B > 3.8bar or 55psi while cranking.
08-03-2014, 11:41 AM
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C240
thanks!
When we took the fuel filter off and tried to blow air through it NOTHING was coming out the other end! And so far it hasn't happened again. Hopefully that was the fix! Ill check the pressure while cranking too.
08-04-2014, 07:36 PM
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2002 C240, 2006 ML350, 2011 X3
hey!
they replaced the MAF and didn't do anything else... so far the car runs OK... but I will never drive it on the freeway again lol
i might just replace the fuel filter again just as a precaution too...
they replaced the MAF and didn't do anything else... so far the car runs OK... but I will never drive it on the freeway again lol
i might just replace the fuel filter again just as a precaution too...
08-04-2014, 11:14 PM
#13
Super Member
Fuel filter could be clogged at high mileage especially if you use gasoline high in ethanol like those at PetroCanada.
