SL55/63/65/R230 AMG: Mystery Power
Previous car was an 05 E55, Kleemann ECU/Pulley, EVO cooling kit, CF airbox, resonator delete. No slouch.
I have noticed several times while driving that the SL just felt 'dead' for lack of a better term. Kompressed car just flat was explosive - spooled car sometimes seems lazy. BUT - it has been pretty hot here of late - mid 90s.
SO - I wondered if the Johnson CM30 just wasn't all that or if maybe I got an air pocket in the intercooler circuit during install?
THEN - I wondered if I just drive the car way too sedately the vast majority of the time. It is my daily driver in tight city traffic. SO I just decided to throttle her a few times over the course of a few days and the power just seemed to magically re-appear. I also did the adaptive reset sith the key and throttle (sneaky ECU reset) and the car is just a beast. Even on a hot day after a couple of good gooses, she will still just light 'em up at 30-40 mph in 2nd gear. Don't even turn the traction control off, the car will spin right into oncoming traffic.
Has anyone else noticed that these 65 cars do tend to 'adapt' to gentle driving pretty thoroughly and really wake up after more aggressive driving or clearing the adaptive driving parameters?
Would air in the intercooler system provide such extremely intermittent symptoms? Fine sometimes and noticably lazy others?
I sure don't mind springing for a better H2O pump if the Johnson CM30 just isn't enough. Any experience, thoughts GREATLY appreciated.
Previous car was an 05 E55, Kleemann ECU/Pulley, EVO cooling kit, CF airbox, resonator delete. No slouch.
I have noticed several times while driving that the SL just felt 'dead' for lack of a better term. Kompressed car just flat was explosive - spooled car sometimes seems lazy. BUT - it has been pretty hot here of late - mid 90s.
SO - I wondered if the Johnson CM30 just wasn't all that or if maybe I got an air pocket in the intercooler circuit during install?
THEN - I wondered if I just drive the car way too sedately the vast majority of the time. It is my daily driver in tight city traffic. SO I just decided to throttle her a few times over the course of a few days and the power just seemed to magically re-appear. I also did the adaptive reset sith the key and throttle (sneaky ECU reset) and the car is just a beast. Even on a hot day after a couple of good gooses, she will still just light 'em up at 30-40 mph in 2nd gear. Don't even turn the traction control off, the car will spin right into oncoming traffic.
Has anyone else noticed that these 65 cars do tend to 'adapt' to gentle driving pretty thoroughly and really wake up after more aggressive driving or clearing the adaptive driving parameters?
Would air in the intercooler system provide such extremely intermittent symptoms? Fine sometimes and noticably lazy others?
I sure don't mind springing for a better H2O pump if the Johnson CM30 just isn't enough. Any experience, thoughts GREATLY appreciated.
PDC...I have the same setup as you except with an aftermarket heat exchanger. To be honest with you, I've never felt that "dead feeling" you've described. I like to drive it in manual for a bit though especially high way driving...then in just regular manual mode.
PURE speculation, it may be that the adaptive reset is helped by the occasional aggressive driving. I don't drive it as often as you so that is why I tend to drive it in manual mode more...my DD is my Accent...
Here is thread re: heat exchanger. Marcus Frost gave me heads up on the HE...it was shipped down to me. I am not sure if they are mass producing them now or doing them to spec...
https://mbworld.org/forums/sl55-amg-...ger-sl65s.html
Jon
PS I have had no issues with it at all...
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Driving the car in sports mode for tranny should feel very lively and the car should not snooze regardless of your driving habits.
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Last edited by PDC; Jul 10, 2012 at 02:33 PM. Reason: sp
So, I just ordered the Bosch "010" intercooler pump online and have an appointment to get it installed next Monday morning, July 9. I will post results. I want my power back!?!?!?!?!?!?!
So, I just ordered the Bosch "010" intercooler pump online and have an appointment to get it installed next Monday morning, July 9. I will post results. I want my power back!?!?!?!?!?!?!
a pump might or might not be your problem.
btw, flooring a healthy stock sl65 from anything less than 60 should produce tirespin and the car should slalom looking for traction well into triple digit speeds...
I have read that sometimes the johnson CM30 (and maybe others as well) will move fluid at low pressure and low temp conditions, but peters out as temps and pressures go up.
This morning it was only 80 degrees and the car would literally rip your head off at WOT. I parked at the courthouse for a 45 minute hearing and on the way back to the office, it felt like I was running at half power.
I ain't no mechanic, but the symptoms sure seems to fit all the threads that have resulted in discovery of a dead or dying IC pump.
I am also ready to pull the trigger on a Eurocharged Heat Exchanger.
Last edited by PDC; Jul 2, 2012 at 04:37 PM. Reason: sp
Thanks,
Even now having a ABS n ESP problem n my right side of the Low beam has been dipped. N still no luck. If i may ask, Why did u choose euro charged HE?
Even now having a ABS n ESP problem n my right side of the Low beam has been dipped. N still no luck. If i may ask, Why did u choose euro charged HE?
Jon
PS I've ordered stuff from them with really no problem...but I have heard differently on other products. So I guess it is a toss up...

Glad to hear your power is back

Aaron






