C240 Auto---engine dies at Park,Reverse,Neutral..help!
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Joined: Dec 2001
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From: PHILIPPINES
07' ML350
C240 Auto---engine dies at Park,Reverse,Neutral..help!
hello, i need ur help guys/gals........
i have a C240 auto, lately it has developed the ff. problem with 8,000kms++mileage:
a) Car starts fine, runs fine also, no problem with acceleration.
b) Engine idles at 700+sumthin on idling with aircon-OFF
c) Engine rpm "sometimes" drops to 500+ engine shakes for a few seconds before recovering to 700rpm when aircon is turned ON. sometimes, d engine dies! this happens when d engine is cold or hot
d) When i start d car, with Aircon ON or OFF, and shift to "reverse" or "drive" and with my foot on the gas pedal, and without stepping on d throttle (simulating traffic stop with gear in D), engine rpm goes down to 500rpm, then engine dies! in short, i cannot anymore hold d car by depressing d brakes with the selector in either D or R, d car will die after a few seconds(randomly-but most of d time), to be able to use it, i have to shift, then throttle immediately to prevent d engine from dying. or while in traffic, i have to shift either to N of P for d engine to hve d correct idling rpm, otherwise..engine rpm goes down to 500 and dies.
however, when i pass over some speed bumps--or slowing down at an intersection or traffic, sometimes, d engine just dies!!!
what could b the problem for this????????????/ its really bothering me alot coz i dont hve a benz dealer in my place! and it seems...im gonna b spending to import a mechanic to my city,
and thats gonna b bloody for my wallet
i have a C240 auto, lately it has developed the ff. problem with 8,000kms++mileage:
a) Car starts fine, runs fine also, no problem with acceleration.
b) Engine idles at 700+sumthin on idling with aircon-OFF
c) Engine rpm "sometimes" drops to 500+ engine shakes for a few seconds before recovering to 700rpm when aircon is turned ON. sometimes, d engine dies! this happens when d engine is cold or hot
d) When i start d car, with Aircon ON or OFF, and shift to "reverse" or "drive" and with my foot on the gas pedal, and without stepping on d throttle (simulating traffic stop with gear in D), engine rpm goes down to 500rpm, then engine dies! in short, i cannot anymore hold d car by depressing d brakes with the selector in either D or R, d car will die after a few seconds(randomly-but most of d time), to be able to use it, i have to shift, then throttle immediately to prevent d engine from dying. or while in traffic, i have to shift either to N of P for d engine to hve d correct idling rpm, otherwise..engine rpm goes down to 500 and dies.
however, when i pass over some speed bumps--or slowing down at an intersection or traffic, sometimes, d engine just dies!!!
what could b the problem for this????????????/ its really bothering me alot coz i dont hve a benz dealer in my place! and it seems...im gonna b spending to import a mechanic to my city,
and thats gonna b bloody for my wallet
Newbie
Joined: Apr 2003
Posts: 1
Likes: 0
From: Birmingham, AL
2003 C320 Sports Coupe
I don't know any of the specifics, but my friend is leasing a 2002 C240 sedan and this same thing happened to her multiple times - leaving her stranded in the middle of the road with two babies in the back seat. After the dealership had to pick her up two different times in a week, they were unable to find anything wrong with the car. The third time, two weeks later, she told them to keep the car. They eventually gave her a new one, which has been fine ever since. After reading your posting, it makes me wonder if it's a known issue with the 240. It may be worth reasearching. Good luck.
Thread Starter
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Joined: Dec 2001
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From: PHILIPPINES
07' ML350
actually from what ive heard..its a common problem indeed.
these are the possible culprits..but i dont have a benz star diagnosis here in my place, so ill end up doing d check up manually.
a. Air Leak in the engine (fuel injectors/intake manifold)--> done this check by pouring fuel over hoses and intake manifold joints, diagnosis proved no leaks.
b. Mass Air Fuel Sensor (Air Mass Sensor)--> i do not know how to check this component (help please)
c. Brake Sensor?(i dont think this is it coz d car dies even while idling) with foot of the gas pedal
anyone of you replaced or had these three possible culprits???
but in simple terms, i think, it is only the car's "idle speed" w/c needs adjustment, coz when i drive it, it runs just fine.
by the way, how do i manually adjust the engine's idle speed??? can it be done manually? just like on carburated engines?
these are the possible culprits..but i dont have a benz star diagnosis here in my place, so ill end up doing d check up manually.
a. Air Leak in the engine (fuel injectors/intake manifold)--> done this check by pouring fuel over hoses and intake manifold joints, diagnosis proved no leaks.
b. Mass Air Fuel Sensor (Air Mass Sensor)--> i do not know how to check this component (help please)
c. Brake Sensor?(i dont think this is it coz d car dies even while idling) with foot of the gas pedal
anyone of you replaced or had these three possible culprits???
but in simple terms, i think, it is only the car's "idle speed" w/c needs adjustment, coz when i drive it, it runs just fine.
by the way, how do i manually adjust the engine's idle speed??? can it be done manually? just like on carburated engines?
MBWorld Fanatic!
Joined: Sep 2002
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From: Ohio
2010 C300 4matic
Originally posted by BruNo
a. Air Leak in the engine (fuel injectors/intake manifold)--> done this check by pouring fuel over hoses and intake manifold joints, diagnosis proved no leaks.
a. Air Leak in the engine (fuel injectors/intake manifold)--> done this check by pouring fuel over hoses and intake manifold joints, diagnosis proved no leaks.
by the way, how do i manually adjust the engine's idle speed??? can it be done manually? just like on carburated engines?
MBWorld Fanatic!
Joined: Nov 2001
Posts: 1,160
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From: Toronto, Ontario, Canada
may be the air sensor...
I had the same problem in our old 95 318i...
It would just die after starting. I would need to rev it really high for about 20 seconds to remove the symptoms.
or could it be a fuel injector problem? gunk clogs them up because of the low speed/perpetual traffic situation in the Phils??
I had the same problem in our old 95 318i...
It would just die after starting. I would need to rev it really high for about 20 seconds to remove the symptoms.
or could it be a fuel injector problem? gunk clogs them up because of the low speed/perpetual traffic situation in the Phils??
MBWorld Fanatic!
Joined: Nov 2001
Posts: 6,211
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From: Laguna Niguel, CA
Don't know how MB handles diagnostics in other countries but in the U.S. you can plug in an OBD-2 scanner and check the sensors and codes. You may have codes that are stored yet it doesn't trigger any message or lights on the console. I find my OBD-2 scanner an invaluable tool with today's engines.
The only time my car exhibited this type of behaviour is when they steam cleaned the engine and accidentially toasted my crank position sensor.
The only time my car exhibited this type of behaviour is when they steam cleaned the engine and accidentially toasted my crank position sensor.
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MBWorld Fanatic!
Joined: May 2002
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From: The blue white rock, third out.
2002 C230 Coupe(M111)
Originally posted by BruNo
a. Air Leak in the engine (fuel injectors/intake manifold)--> done this check by pouring fuel over hoses and intake manifold joints, diagnosis proved no leaks.
a. Air Leak in the engine (fuel injectors/intake manifold)--> done this check by pouring fuel over hoses and intake manifold joints, diagnosis proved no leaks.
Propane from a small torch is the proper way(ha!) to do this. When you pass over a leak, the RPM will go up a little.
Mike, soap wouldn't work, the problem is your sucking in air, not blowing it out. Brunos method would probably find a leak, the car would die, explode, or the engine RPM would rise. Bring along a pack of Lucky Strikes when you go over to Bruno's garage.
Has anyone considered the clutch on the AC compressor? Or the compressor itself?
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Thread Starter
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Joined: Dec 2001
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From: PHILIPPINES
07' ML350
i dont think the a/c compressor has got anything to do, coz d engine dies with or without the a/c on.
well...i wouldnt mind blowing things up, by doin so, i could get paid by insurance for a new car!!! hahahaha
wen i injected gasoline over d manifolds, on injector#2 to b exact, the rpm did rise!!! and d engine run a little better after. but wen we tried injecting gasoline again, we couldnt find any more leak. so i guess, air leak is also "out". seems that some "dust" has settled in between..thus by pouring gasoline, washed them off on d process.
i drove d car today, floored d pedal......and the "check engine light" came ON. and d engine started to "run/idle roughly" though..its kinda random... haaaaa......im almost on d verge of giving up, i might just as well....burn my pocket in importing a mechanic with star diagnosis soon.
well...i wouldnt mind blowing things up, by doin so, i could get paid by insurance for a new car!!! hahahaha
wen i injected gasoline over d manifolds, on injector#2 to b exact, the rpm did rise!!! and d engine run a little better after. but wen we tried injecting gasoline again, we couldnt find any more leak. so i guess, air leak is also "out". seems that some "dust" has settled in between..thus by pouring gasoline, washed them off on d process.
i drove d car today, floored d pedal......and the "check engine light" came ON. and d engine started to "run/idle roughly" though..its kinda random... haaaaa......im almost on d verge of giving up, i might just as well....burn my pocket in importing a mechanic with star diagnosis soon.
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Joined: Apr 2003
Posts: 39
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From: Los Angeles, CA
C320 Sport
What year is your vehicle? I had the same problem on my '01 C320. I would start it, it would idle fine, then all of a sudden the RPM would drop and the engine would almost die. The dealer reset the computer (apparently there is a software upgrade???) and since then I haven't had a problem. Supposedly it is a common problem with the W203 in general.
What part of PI you in? My brother-in-law has a shop in Manila specializing in MBZ and BMW. They have all the original German diagnostic equipment, they may be able to help you. I can refer you if you like.
What part of PI you in? My brother-in-law has a shop in Manila specializing in MBZ and BMW. They have all the original German diagnostic equipment, they may be able to help you. I can refer you if you like.
Thread Starter
Super Member
Joined: Dec 2001
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From: PHILIPPINES
07' ML350
Jadelotus: can u pm me or post d shop name and address and contact no.??? im not from manila, but im willing to pay for airfare or send d car back to manila for repair.
Pokerface: yes, only manila has trained benz mechanics.
Pokerface: yes, only manila has trained benz mechanics.
