I have been neutered (I don't like my car anymore part II)
Thread Starter
Almost a Member!
Joined: Apr 2006
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From: San Jose, CA
2004 E55
I have been neutered (I don't like my car anymore part II)
Well folks,
I had my car on the dyno this morning and as much as I had braced myself for the worst, the results still shocked me to some extent.
And the numbers are (drum roll please...)
1st run - 317.9 whp, 385.1 tq
2nd run - 306.1 whp, 368.1 tq
3rd run - 302.3 whp, 364.8 tw
Obviously this is one sick Benz and not in a good way.
I'm beside myself right now
At WOT the A/F ration took a nose-dive and the dyno wouldn't show anything less than 10.0 to 1, isn't this cylinder wall washing territory? This can't really be software alone, there has to be a mechanical failure as well.
I'll post the dyno plots as soon as I get near a scanner.
Maybe my dealership will believe me this time when I tell them the car feels hella-sluggish while I shove the dyno results in their face...
I have to go calm my nerves now and prepare for the inevitable brawl with my SA
-Mattias
I had my car on the dyno this morning and as much as I had braced myself for the worst, the results still shocked me to some extent.
And the numbers are (drum roll please...)
1st run - 317.9 whp, 385.1 tq
2nd run - 306.1 whp, 368.1 tq
3rd run - 302.3 whp, 364.8 tw
Obviously this is one sick Benz and not in a good way.
I'm beside myself right now
At WOT the A/F ration took a nose-dive and the dyno wouldn't show anything less than 10.0 to 1, isn't this cylinder wall washing territory? This can't really be software alone, there has to be a mechanical failure as well.
I'll post the dyno plots as soon as I get near a scanner.
Maybe my dealership will believe me this time when I tell them the car feels hella-sluggish while I shove the dyno results in their face...
I have to go calm my nerves now and prepare for the inevitable brawl with my SA
-Mattias
Super Member
Joined: Jul 2005
Posts: 577
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From: South Florida
2007 S65, 2005 Nissan Armada
I just got my car back from service. They did the recalls and some other stuff on it. I also told them my car was lacking power and they actually found something wrong and fixed it and the car is better now. The 2 pin connector at the SC clutch was not seated properly and the SC was not always running when it should have been.
My car was not as bad as yours but it would only do 12.3 @ 113.5 with DR's so I knew something was wrong. You might have more than one issure to be that far down in HP.
My car was not as bad as yours but it would only do 12.3 @ 113.5 with DR's so I knew something was wrong. You might have more than one issure to be that far down in HP.
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SL65 AMG
Originally Posted by mstenberg
Well folks,
I had my car on the dyno this morning and as much as I had braced myself for the worst, the results still shocked me to some extent.
And the numbers are (drum roll please...)
1st run - 317.9 whp, 385.1 tq
2nd run - 306.1 whp, 368.1 tq
3rd run - 302.3 whp, 364.8 tw
Obviously this is one sick Benz and not in a good way.
I'm beside myself right now
At WOT the A/F ration took a nose-dive and the dyno wouldn't show anything less than 10.0 to 1, isn't this cylinder wall washing territory? This can't really be software alone, there has to be a mechanical failure as well.
I'll post the dyno plots as soon as I get near a scanner.
Maybe my dealership will believe me this time when I tell them the car feels hella-sluggish while I shove the dyno results in their face...
I have to go calm my nerves now and prepare for the inevitable brawl with my SA
-Mattias
I had my car on the dyno this morning and as much as I had braced myself for the worst, the results still shocked me to some extent.
And the numbers are (drum roll please...)
1st run - 317.9 whp, 385.1 tq
2nd run - 306.1 whp, 368.1 tq
3rd run - 302.3 whp, 364.8 tw
Obviously this is one sick Benz and not in a good way.
I'm beside myself right now
At WOT the A/F ration took a nose-dive and the dyno wouldn't show anything less than 10.0 to 1, isn't this cylinder wall washing territory? This can't really be software alone, there has to be a mechanical failure as well.
I'll post the dyno plots as soon as I get near a scanner.
Maybe my dealership will believe me this time when I tell them the car feels hella-sluggish while I shove the dyno results in their face...
I have to go calm my nerves now and prepare for the inevitable brawl with my SA
-Mattias
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Senior Member
Joined: Sep 2005
Posts: 411
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2003 E55 K1
In a way, you're lucky. Obviously, there is something very wrong with your car. I went through the same thing and it turned out the supercharger was not working after they did the software update. The problem is if you only have a modest fall off in power, which is where I am now. Leave them the car and call national MB number if they continue to give you a hard time. That's what I did and they finally fixed the problem.
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Joined: Mar 2002
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From: Kenilworth, il usa
GT63S ePerformance 4dr, '25 Bentayga Black Ed.(wife), Wrangler and 250 MLB(kids)
Compared accelleration #s on G-tech and the 0-60,1/4 mile are in the same range as before (12.9s @ 114mph before,12.9s@ 115 after recall ) in my truck.
Member
Joined: Jun 2006
Posts: 124
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Take it to a different MB dealership if there's one in your area, you definitely are not getting your money's worth. Do something quick, the condition could be getting worse and worse, since the source is not evident
Last edited by TASHO; Jul 1, 2006 at 01:16 AM.
Super Member
Joined: Aug 2005
Posts: 665
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Originally Posted by mstenberg
I had my car on the dyno this morning and as much as I had braced myself for the worst, the results still shocked me to some extent.
And the numbers are (drum roll please...)
1st run - 317.9 whp, 385.1 tq
2nd run - 306.1 whp, 368.1 tq
3rd run - 302.3 whp, 364.8 tw
Obviously this is one sick Benz and not in a good way.
I'm beside myself right now
At WOT the A/F ration took a nose-dive and the dyno wouldn't show anything less than 10.0 to 1, isn't this cylinder wall washing territory? This can't really be software alone, there has to be a mechanical failure as well.
And the numbers are (drum roll please...)
1st run - 317.9 whp, 385.1 tq
2nd run - 306.1 whp, 368.1 tq
3rd run - 302.3 whp, 364.8 tw
Obviously this is one sick Benz and not in a good way.
I'm beside myself right now
At WOT the A/F ration took a nose-dive and the dyno wouldn't show anything less than 10.0 to 1, isn't this cylinder wall washing territory? This can't really be software alone, there has to be a mechanical failure as well.
Last edited by Grumpy666; Jul 1, 2006 at 02:44 PM.
Banned
Joined: May 2004
Posts: 3,797
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From: Richmond Hill, Ontario
2003 E55 AMG
I am right there with you... And I definitely feel your pain...
Yesterday I got my shredded belt replaced while I wait for the Evosport revised pullies and new belt to arrive from California. I thought the car would run alot better with the new belt... It was better, but, it was far from where it should be.
Feels like a complete slug.. Can barely spin the tires while rolling in 2nd gear anymore.. Hell, I used to spin them at will in 3rd gear before with those massive 295 on the back.. Now, in 2nd gear , rolling at 40mph I can barely get them to move. This car is a completely different vehicle after that bloody recall reflash. Even though my tuner reprogrammed it again with the old firmware, something is still not right. I wonder if the programming they did needs something special to have it reversed?????
I was within inches of driving my car right to my car broker and asking him to get rid of it because I am getting sick of dealing with this type of stuff. Between the cooling pump problems, S/C disengaging, belt loosening, and now this damn ECU problem I've about had it myself.
I'm giving it one more shot... If it doesnt get resolved, its going on the chopping block.. Its either a Viper TT or an SL600 TT next.
Yesterday I got my shredded belt replaced while I wait for the Evosport revised pullies and new belt to arrive from California. I thought the car would run alot better with the new belt... It was better, but, it was far from where it should be.
Feels like a complete slug.. Can barely spin the tires while rolling in 2nd gear anymore.. Hell, I used to spin them at will in 3rd gear before with those massive 295 on the back.. Now, in 2nd gear , rolling at 40mph I can barely get them to move. This car is a completely different vehicle after that bloody recall reflash. Even though my tuner reprogrammed it again with the old firmware, something is still not right. I wonder if the programming they did needs something special to have it reversed?????
I was within inches of driving my car right to my car broker and asking him to get rid of it because I am getting sick of dealing with this type of stuff. Between the cooling pump problems, S/C disengaging, belt loosening, and now this damn ECU problem I've about had it myself.
I'm giving it one more shot... If it doesnt get resolved, its going on the chopping block.. Its either a Viper TT or an SL600 TT next.
Thread Starter
Almost a Member!
Joined: Apr 2006
Posts: 28
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From: San Jose, CA
2004 E55
Dyno results
Sorry for the wait.
Temperature was right around 72F and the car sat for almost 45 min before the first run. The first available appointment with the dealer is this coming Wednesday... My presence was requested to go with the technician in order to verify the powerloss... Lucky me
Making myself available for various test drives and dyno runs is becoming expensive.
Grumpy,
I will make them prove that the car is making boost as advertised.
-Mattias
Temperature was right around 72F and the car sat for almost 45 min before the first run. The first available appointment with the dealer is this coming Wednesday... My presence was requested to go with the technician in order to verify the powerloss... Lucky me
Making myself available for various test drives and dyno runs is becoming expensive.
Grumpy,
I will make them prove that the car is making boost as advertised.
-Mattias
Super Member
Joined: Aug 2005
Posts: 665
Likes: 0
Looking at your dyno plots, in addition to the overall reduced power:
- If you go again, ask them to start the pull about 1000 RPM lower.
- Have you done the IC pump upgrade? You're losing about 25 HP from first pull to third.
- At 5000 RPM, it looks like airflow is significantly reduced, causing your A/F ratio to nose dive - probably from reduced boost.
- If you go again, ask them to start the pull about 1000 RPM lower.
- Have you done the IC pump upgrade? You're losing about 25 HP from first pull to third.
- At 5000 RPM, it looks like airflow is significantly reduced, causing your A/F ratio to nose dive - probably from reduced boost.
Banned
Joined: Mar 2006
Posts: 2,855
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From: Southern California
S600TT, R350
I think you are not making any boost. The reason power falls so sharply on top due to non-spinning blower becoming a major restriction.
Try this. Pull the engine cover off and unplug the blower connector. It is on the left side of the clutch and looks like a "squished cigar case".
If the car feels the same, than you know that you have no boost.
Good Luck!
Try this. Pull the engine cover off and unplug the blower connector. It is on the left side of the clutch and looks like a "squished cigar case".
If the car feels the same, than you know that you have no boost.
Good Luck!
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Joined: May 2004
Posts: 1,197
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W221 S65 AMG
I feel your pain...for comparison here was my crappy K2 dyno from 1 year ago-- culprit a leaking coolant/heat exchanger hose...notice the ASTRONOMICAL IATs.
Its fixed now but should give you a lower limit for HP....if I didn't have any mods I am not certain at all that these #s would have been any different though...so I am not sure how you get down another 70 rwhp to where you are at.
https://mbworld.org/forums/w211-amg/118207-depressing-394-rwhp-stage-2-dyno-help-please.html
Its fixed now but should give you a lower limit for HP....if I didn't have any mods I am not certain at all that these #s would have been any different though...so I am not sure how you get down another 70 rwhp to where you are at.
https://mbworld.org/forums/w211-amg/118207-depressing-394-rwhp-stage-2-dyno-help-please.html
