W211 AMG Discuss the W211 AMG's such as the E55 and the E63

Is my IC pump failing?

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Old Jan 10, 2010 | 01:11 AM
  #1  
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Unhappy Is my IC pump failing?

I bought my car now two weeks ago and everything was great up until about 4 days ago where I noticed it is considerably slower. It still has some get up and go but before it was scary the way it accelerated and pulled me back in my seat. It seems to not accelerate at that lightning speed and the pedal feels heavier. Did I hit a setting on the instrument panel where the gear shifter is to make it slower? The only button I recall me fiddling with was the button that was round and black and had a M and some other letters on it but could not figure out what it did? Or, is my IC pump failing because it is the original that was on the car from a 2004 although probably unlikely? THX.
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Old Jan 10, 2010 | 01:23 AM
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look at your air intake temps with a obd2 scan tool and report back to us
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Old Jan 10, 2010 | 05:12 AM
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2005 e55 amg
try a sneaky reset
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Old Jan 10, 2010 | 07:49 AM
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E55
^^Both of those are solid advice.
In addition, the button you mentioned, "M", sounds like the transmission mode button. There are three choices, "M" for manual shifting, "S" for sport mode, and "C" for comfort mode. If you changed your transmission mode to the comfort setting, it will start from a stand still in second gear. Naturally, this will make the car feel less responsive and more tame. So the next question would be, "how do I know which mode I am in?". If you look at the multifunction display you will see that there are letters to display which gear you have the shifter in (P,R,D, etc.) You will also notice the letters designating which transmission mode you are in, (C, S, or the actual gear #). Make sure you are back in "S", sport mode.
HTH
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Old Jan 10, 2010 | 10:33 PM
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Thanks for the help. I went through the operation manual and all papers and figured that out and I had it in "C" mode or comfort and so I switched it back to "S". The car feels much more responsive and has the torque that pulls you back in your seat again. Is the difference between the two modes supposed to be that dramatic? I mean the car felt like it probably had only 300 horses when in comfort mode and was always shifting gears. Maybe I still have a problem or do you think I just put it in the wrong mode? thx.
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Old Jan 10, 2010 | 10:42 PM
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You should also do the sneaky reset :

https://mbworld.org/forums/w211-amg/...set-works.html

It is suprising what a difference it can make if you have been driving in traffic for a few days/week.
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Old Jan 10, 2010 | 11:55 PM
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I will do the sneaky reset tomorrow and report back if that did the trick along with switching modes, thx.
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Old Jan 11, 2010 | 12:17 AM
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you should get yourself a scan tool either way,if you cant destroy your tires taking off your car is not running at full power.

a healthy 55 is a monster off the line ect...so you might have a bad pump to.Me my brother and mechanic all bought e55s around the same time,after a few days we all thought our cars were slow after first wot in the morning.

scanned my temps and my brothers and they were 172 at idle lol and would hit 200 easy with a bad pump.
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Old Jan 11, 2010 | 01:06 AM
  #9  
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so I should scan it while driving and see if it gets too high? What are the temp ranges for normal and the range to look for if my pump is bad?
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Old Jan 11, 2010 | 07:32 PM
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okay guys. So today I took the beast out for a ride and I am still convinced something is amidst and I should have more power. When driving my brother and I noticed that the supercharger did not feel like it was engaging and giving us that boost we are used to. Can the inter cooler pump stop the supercharger from engaging? Also, I found the thread below and it talks about an updated clutch pack and IC pump. Is this something I should have done and if so can I ask the dealer to install the johnson cm30 pump instead of the mercedes oem? thx.

https://mbworld.org/forums/w211-amg/...5-opinion.html
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Old Jan 11, 2010 | 07:50 PM
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high iats will shut down the s/c to protect it. when the pump isnt working the temps spike and the ecu shuts down the s/c.
as for the dealer using a cm30 its unlikely unless you have a great relationship with the mechanic.
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Old Jan 11, 2010 | 07:52 PM
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if you have to ask, then yes...your pump is failing.
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Old Jan 11, 2010 | 08:15 PM
  #13  
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okay so I guess I have an ic pump issue. Do you think there is anything wrong with my supercharger or is it just the pump? Also, is the clutch pack thing important to get updated? I am not too familiar with working on cars so that is why I am asking all these questions, thx.
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Old Jan 11, 2010 | 09:41 PM
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Do the cheapest thing first!

Belt and new pump. Dealer won't install the Johnson I am pretty sure but the newer OEM pumps are supposed to be more solid. If you are paying out of pocket then by all means see if they will put the J30 in!!

Clutch pack runs about 1000-1200$ plus labor or at least used to few years ago and you'll have to fight them to change it out obviously.

You are new and didn't know so you have a free pass on this one but don't ever EVER run your car in C mode. It starts off in 2nd. Imagine dropping the clutch in 2nd on a stick. You'll just cook that tranny in a hurry if you are a hard on it at red lights. C mode meant for geez-o-matics.

Do a sneaky reset. You'll really enjoy it.

Totally harmless. Your car constantly adjusts to your driving habits so it almost always sets you up in the granny setting even if you just drive in stop and go traffic for awhile. Sneaky erases the settings and brings her back to brute violence again.
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Old Jan 12, 2010 | 01:54 AM
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Yeah I have been doing the sneaky reset the last few days every time before I drive. It does help but I still notice that the car is not burning rubber like it should. I mean up until five days ago when i hammered the pedal the rear end would peel out and the rear would fishtail, but now it just seems like I am giving it a lot of pedal and it is speeding up but not in that warp speed like before.

Do you think if I take it to a good indie shop that takes my warranty which I have gone to in the past would be more inclined to buy the johnson pump and install it or do they have to buy oem mercedes parts? Also, would they know anything about this clutch problem or do I have to describe it to them? thx.
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Old Jan 12, 2010 | 02:51 PM
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thanks jakpro1. I got an appointment scheduled for Friday at MB of Chandler. Can you please tell me what the clutch pack does and if it goes by any other name (supercharger clutch pack?) so I will be able to talk to the technician. Also, what year did the e55 updated ic pump and clutch pack came out and possible part numbers or they should know? thanks for all the help and hopefully they do the work under my chrysler warranty!
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Old Jan 13, 2010 | 05:32 PM
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bump for answers on parts
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Old Jan 14, 2010 | 04:07 PM
  #18  
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bump for clarification on if the clutch pack is a supercharger clutch pack and the year the updated part came out on the e55. Also, the part number if possible on the updated bosch ic pump and the year it came out (I believe in 06'). I have an appointment tomorrow, thx.

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Old Jan 14, 2010 | 05:54 PM
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Cant help you but please report back when the diagnosis is confirmed.

Does the traction control light flash? Have you turned it off to see if it feels faster?
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Old Jan 14, 2010 | 06:12 PM
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The traction light flashes like once when flooring the car with esp on. I know it should be flashing more than that if I am flooring it coming around a turn. I have not tried with the esp off but I know I do not have full power! I will report back tomorrow with findings.
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