E-Class (W211) 2003-2009

No Acceleration/Power

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Old 05-07-2011, 01:47 AM
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CLS500 M113
No Acceleration/Power

Had a fuel pump "cap" change at my local stealers. Old one was leaking fuel all over from a broken outlet pipe.
On the way home, noticed there was no acceleration at all and she wouldn't really go past 40mph! Tried doing a kick down and would not accelerate, just lumbering. Will not even rev past 4k.
What could this be due to?
Old 05-08-2011, 09:46 AM
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E320 & X166
Originally Posted by ap10046
Had a fuel pump "cap" change at my local stealers. Old one was leaking fuel all over from a broken outlet pipe.
On the way home, noticed there was no acceleration at all and she wouldn't really go past 40mph! Tried doing a kick down and would not accelerate, just lumbering. Will not even rev past 4k.
What could this be due to?
No idea, sorry. I would try resetting ECU. You will have to reprogram a few other items but might be worth a shot.

Fuel Pump/filter dirty or broken. If you have never replaced fuel filter/pump and have quite a few miles on her, I would definitely look in that direction.
Old 05-08-2011, 09:53 AM
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2006 E320CDI
Originally Posted by ap10046
Had a fuel pump "cap" change at my local stealers. Old one was leaking fuel all over from a broken outlet pipe.
On the way home, noticed there was no acceleration at all and she wouldn't really go past 40mph! Tried doing a kick down and would not accelerate, just lumbering. Will not even rev past 4k.
What could this be due to?
Think I would return to the Local Stealer and ask them what's up If they were the last hands that touched the car before the problem started.
Old 05-08-2011, 06:06 PM
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We can all speculate about the problem or you simply go back and ask to get the diagnosis performed. This will be the fastest and most accurate way to start your troubleshooting. And since they did work on your car they might do it for free.

Good luck.
Old 05-09-2011, 04:40 AM
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CLS500 M113
Originally Posted by Mackhack
We can all speculate about the problem or you simply go back and ask to get the diagnosis performed. This will be the fastest and most accurate way to start your troubleshooting. And since they did work on your car they might do it for free.

Good luck.
Hi all,
All bad.
Tried swapping the old bad one in again and made no difference. No errors or codes (according to him). Am distraught!
Old 05-09-2011, 01:15 PM
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06' w211 E500 Sport
crank sensor?
Old 05-10-2011, 01:52 PM
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04 E320 4 Matic, 95 Audi S6, 99 Carrera 4 Cabrio, 12 Fiat 500 Sport, 00 BMW R1200C 10, BMW R1200R
Stupid questions here:

Are your rear brakes getting really hot? If so, you might have an SBC Stop issue.

Might you by accident have your speed limiter on? Set on your Cruise control arm.

Just guesses, if your engine is not throwing codes, it might not be anything to do with it, but rather peripherals.

Steve

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