Question about 1995 Mercedes-Benz E-Class

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My 1995 Mercedes Benz E420 has lost power gradually

I own a 1995 E420. The car has progressively lost power over the past year. The trouble began with the vehicle's engine racing at passing speeds > 70mph. Then, it would need 10-15 minutes of warm up before moving after overnight or at least 5 hours sitting. Next, it would stall if any attempt was made to accelerate past 30mph. I recently moved to St.Croix in the US Virgin Islands where there is no dealership or person with a Benz computer to identify the specific problem. My local mechanic tried changing the fuel pumps, but that made the situation worse. Please help.

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  • E420BemzMan Dec 28, 2008

    Thanks txkjun,

    I checked the transmission fluid and the fluid level was adequate. What would make the engine shut off when I attempt to accelerate past 30 mph? The mechanic to whom I took the car thinks there might be some sort of fail-safe that saves the engine from damage. Any other suggestions?


  • E420BemzMan Dec 30, 2008


    Yes, the check engine light is on. Thanks for your effort in locating a local shop with a Launch x431.


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Have you check the transmission fluid level? It sounds like it is low. You might not have a dipstick in that unit. I'd add at least 2 quarts and test drive it. 

Posted on Dec 27, 2008

  • John Weathers
    John Weathers Dec 28, 2008

    Is your MIL light (check engine) on. A drivability problem like this should have set a code. I am trying to find a shop there with a Launch X431. I may have to wait until Monday to talk to Launch support to find you a shop in St Croix.


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