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Q: how to get afault on my 2006 E350 . Car would loose speed on high way. on 2006 Mercedes-Benz E350

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After every 40 to 60 miles on high way Car would loose speed - will not pick up if I depress the accelerator. I will then have to off the engine and wait for about an hour before it picks up again. My surprise is that the Mech said I would have to change the entire fuel Tank as the Fuel pump that is suspected to be faulty is buried in it and can not be replaced. Truely only one access to the Tank on the left back seat and what we found is suspected to be the fuel filter. Please advise on how to rectify the fault. Thanks. Abdulmumin
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What was the fuel pressure? How many miles on the fuel filter? If the pump is bad, it only takes 1.5 hours to replace the fuel pump so fairly simple with the right tools. You should also replace the filter and pump relay when replacing the fuel pump.
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