E-Class (W210) 1995-2002: E 200, E 220D, E 240, E 290TD, E 300TD, E 200, E 240, E 280, E 320, E 420, E 430 (Wagon, Touring, 4Matic)

Losing power and speed on 99 E320 !

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Old Nov 12, 2005 | 03:52 PM
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Losing power and speed on 99 E320 !

For some reason my car is losing power and speed. When i am at a steady speed the car starts to rapidly slow down, when i am going on 80km the car starts to slow down even when i have my foot on the peddal. When i stop and go, and i have to push the car three times as hard to make it accelerate. When i was driving on the highway the car could only manage to get to 120km, and thats when i pushed the gas at full throttle. This all started about a week ago, the car was running fine before, but i don't know what happend suddenly. Now the car is hardly driveable, if i push really now it only manages to go 80km. This is a really problem, does anyone know whats happening with my car. I just had a major service done on the car, and the car only has about 20,000km. I am officially freaked out !
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Old Nov 12, 2005 | 04:42 PM
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'98 E320 4Matic, '85 380SL
Is the engine not running right, or does it feel like the link between the gas pedal and the throttle is messed up?

Your throttle cable could be loose. Or there could be some problem with the throttle potentiometer or the throttle actuator, although I would expect problems with either of those would cause a C.E.L.
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Old Nov 12, 2005 | 04:48 PM
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1996E320/black/'s Avatar
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1996 E320 w210 Black/Biege leather
I'd start with the most obvious things first, like the fuel filter, injectors, even a dirty air filter will cause the symptoms you describe.
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Old Nov 12, 2005 | 04:49 PM
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Originally Posted by lexrex
Is the engine not running right, or does it feel like the link between the gas pedal and the throttle is messed up?

Your throttle cable could be loose. Or there could be some problem with the throttle potentiometer or the throttle actuator, although I would expect problems with either of those would cause a C.E.L.
Engine is running good, and gas pedal seems to be good too. I think it might be the compressor.
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Old Nov 12, 2005 | 04:51 PM
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Originally Posted by 1996E320/black/
I'd start with the most obvious things first, like the fuel filter, injectors, even a dirty air filter will cause the symptoms you describe.
I just had a major servie done, everything from top to bottom, the things on ur list were taken care of.
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Old Nov 13, 2005 | 11:14 PM
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any more answers to my problem ?
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Old Nov 14, 2005 | 12:29 PM
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W204 C300 2010
Originally Posted by 1996E320/black/
I'd start with the most obvious things first, like the fuel filter, injectors, even a dirty air filter will cause the symptoms you describe.
Double check to make sure the fuel filter was really changed out. And double check the air filter too. These are items that you can look for. As a clogged filter provide interruption to the engine under load or at speed.

Does your car idle smoothly?
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Old Nov 14, 2005 | 01:42 PM
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E500
Are you getting a check engine light? Could it be the air mass meter
or the fuel filter as mentioned above? Good luck
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Old Nov 14, 2005 | 03:54 PM
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Your BAS/ESP/ASR lightr isn't on is it?

God, the manual says only 2/3 power is available, feels more like 1/4 to me.
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Old Nov 15, 2005 | 07:28 AM
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I vote for a damaged/collapsed catalytic converter.
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Old Nov 23, 2005 | 07:42 AM
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2004 s600
I had this on an ML320 and it was the O2 sensor.
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Old Nov 27, 2005 | 10:16 PM
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From: Queens
99 W210
I got a 99 E320 also, it's the catylic converter, Same exact problem, my happened when i was 300 miles comming home, go to a shop , put the car on the lift and let them disconnect the affected catylic converter-- it's has 4, 2 on each side, usually if you hit the catylic converter with you hands (make a fist)-- you will hear it sound like it is lose inside-- if it sound like that it's damaged, the good one will make no type of sound--

good luck----
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