CLS 55 AMG POWER LOSS

1londonboy · 07-06-2009, 05:28 PM

Hi i have a 2005 cls 55 amg
after it warms up and i drive it a little hard the s/c cuts out and then sometimes comes back on when i drive slow for a while
i've pluged it in and it comes up with coolant pump, charge-air cooler
error detected.....i have changed the pump and the same happens so i take it it's not that
any ideas ?....

thanks chris

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jturkel · 07-06-2009, 06:04 PM

so you have the error, you changed the i/c pump, and STILL have the the s/c cutting out and driving slow problem?

1londonboy · 07-06-2009, 06:07 PM

thats right there was no change

Chris

JustPete · 07-06-2009, 07:15 PM

Quote:

Originally Posted by 1londonboy

Hi i have a 2005 cls 55 amg
after it warms up and i drive it a little hard the s/c cuts out and then sometimes comes back on when i drive slow for a while
i've pluged it in and it comes up with coolant pump, charge-air cooler
error detected.....i have changed the pump and the same happens so i take it it's not that
any ideas ?....

thanks chris

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James@ACGSD · 07-06-2009, 07:44 PM

Where are you located?

Which did you replace it with? Where did you get it installed at?

If you replaced it with an OEM one, it is not unheard of to get a bad pump right out of the box.

1londonboy · 07-07-2009, 05:39 AM

i rebuilt the one that was in it, and then still bought a brand new one from merc ...and still had the problem with both of them ...but they are running still when the s/c cuts out

James@ACGSD · 07-07-2009, 02:34 PM

Quote:

Originally Posted by 1londonboy

i rebuilt the one that was in it, and then still bought a brand new one from merc ...and still had the problem with both of them ...but they are running still when the s/c cuts out

Might be a dumb question, but have you checked your coolant levels? Where are you located? Maybe I can give you a suggestion to where you could take your CLS

1londonboy · 07-07-2009, 03:43 PM

yes levels are all good...if i drive it slow s/c comes back online till i give it the beans again then it shuts off...i am going to change the relay on the coolant line tomorrow not sure if thats going to help but it's cheaper than that pump was ......i'm in sunny london England

Chris

JustPete · 07-07-2009, 04:19 PM

Quote:

Originally Posted by 1londonboy

yes levels are all good...if i drive it slow s/c comes back online till i give it the beans again then it shuts off...i am going to change the relay on the coolant line tomorrow not sure if thats going to help but it's cheaper than that pump was ......i'm in sunny london England

Chris

Air locked maybe?

Was the system bled?

1londonboy · 07-07-2009, 05:22 PM

i have taken the small plug off from the top of the hose and coolant is coming out so i take it theres no air in the pump ....thanks chris

MBTech221 · 07-09-2009, 02:37 AM

theres really only two things that control that supercharger, the secondary coolant circulation pump ( wich is inline with the only coolant system and should be on the passenger side near the front bumper area, not like the 65s that have a seperate cooling system for the innercoolers) and possibly a bad intake air temp sensor or if you were in the area maybe disconnected. if it sees the intake temp too high it will shut off the supercharger sometimes too

1londonboy · 07-09-2009, 06:02 AM

i have looked at the outside temp ...and it's showing -40 i know i'm in london but it's that cold ....is that what would happen if it has become disconnected ?...any idea where it is ?....

Thanks chris

1londonboy · 07-09-2009, 08:28 AM

is the intake air temp sensor the same as the outside temp sensor ?....i've just seen the outside temp sensor has come lose and been ripped off ...off to go get a new one now ...

1londonboy · 07-09-2009, 10:59 AM

dealer hasn't got one have to wait till monday to get it

MBTech221 · 07-09-2009, 08:34 PM

thats the outside temp sensor that should be in the front bumper it will read -40 when its disconnected or an open in the wiring, the intake temp sensor should be right before the throttle body. sholuld be a lil sensor with two wires. i havnt seen a outside temp sensor cause a supercharger not to come on. but it is possible. on the new c class w204 body if that is disconnect it will set a check engine light that outside temp doesnt correspond to intake air temp codes.

1londonboy · 07-09-2009, 08:53 PM

thanks for your help on this i'm pulling my hair out...i've been out in it tonight and it cuts in and out all the time ...soon as i floor it for a minute it cuts the s/c then drive slow and it comes back on...can i plug in and read that temp sensor ...or should i just get a new one ?.....thanks chris

MBTech221 · 07-09-2009, 09:00 PM

wich pump did you replace. where was it located on the vehicle. i would def get a new outside temp sensor. but i would def take a second look at the secondary coolant circulation pump

1londonboy · 07-09-2009, 09:07 PM

the pump is on the right behind the bumper i took mine apart and replaced the carbon brushes....and then even bought a brand new one from mb £230...both were running when the s/c cuts out....i have stopped the car and jumped under it to check the pump is running ....which sensor should i get?...i have to replace the outside temp one in the bummper anyway cause it's gone lol....but should i get the one on the throttle body?...thanks Chris

IngenereAMG · 07-10-2009, 01:31 AM

This sounds like an IC pump issue.

When I replaced mine, I did the IC pump relay along with it. It is located behind the passenger seat, inside the box.

Did you bleed the system after the install?

When all else fails, bring it to the dealer!

MBTech221 · 07-10-2009, 04:08 AM

def start with the known bad wich is the outside temp sensor. im not saying its impossible but i have seen crazier things. start with the missing outside temp sensor and report your findings

1londonboy · 07-10-2009, 02:48 PM

i'm now waiting for the outside temp sensor and the coolant pump relay both here for monday ....how should the system be bled ?...i think theres a procejure but don't know it ?...thanks

MBTech221 · 07-10-2009, 09:07 PM

if the pump is turning on the relay is probably doing its job. but its good to replace just because whenever you do a pump. typicly to bleed the system just fill it up. warm it up and add coolant as it sucks it down. usually they dont get air pockets in the sytem. turn on your heater too. drive it and check it and top it off. the only the 65s have a seperate cooling system for the innercoolers that need to be bled with a special set up that pump the coolant through the system and pushes the air out at the same time

1londonboy · 07-11-2009, 04:49 PM

ok i'm going to get the relay moday along with the outside air temp sensor and going on what you say there's no air in the system ...i'll put both those on and report back ...have a good weekend ..

1londonboy · 07-13-2009, 03:38 PM

It works ....I changed both today and it works it was the outside air temp sensor believe it or not they must run the ecu from that one and not the block temp ?...wierd but true..happy to have my power back i need some new back tyres now.......thanks all

Kenny Pollock · 07-20-2009, 05:28 PM

Wow, having the same issue, hopefully I can fix it- my outside temp is reading 90 degrees, which is about right.

07-06-2009, 06:04 PM	#2
jturkel MBWorld Fanatic! Join Date: Oct 2006 Location: Scottsdale, AZ Posts: 3,754 Drives: 02 C32 AMG	so you have the error, you changed the i/c pump, and STILL have the the s/c cutting out and driving slow problem? __________________ \| 02 C32 AMG \| SL55 Intake w/K&Ns \| LET 185 Pulley \| LET Tune \| LET Heat Exchanger \| Eurocharged Headers \| Res Delete \| NGK IX Iridiums \| Magnecor KV85s \| NW Pulley Saver \| NW ISO Kit \| Valentine1 \| DashDyno SPD \| CF Trunk Lip \| Waiting Install: NW oil catch can Next: secondary cat delete, retune, coolant reservoir, intake/tb project, hooley button

07-06-2009, 07:44 PM	#5
James@ACGSD PREMIUM SPONSOR Join Date: Sep 2008 Location: San Diego, CA Posts: 805 Drives: 07 RS4	Where are you located? Which did you replace it with? Where did you get it installed at? If you replaced it with an OEM one, it is not unheard of to get a bad pump right out of the box. __________________ Automotive Connoisseur Group Inc of San Diego Now stocking all Euroteck Motorsport Products WE STOCK VREDESTEIN Tyres Now Operating from: 7924 Ronson Road Suite I&J San Diego, CA 92111 877-422-4736/ 858-633-1017 Providing same day Kleemann and RENNtech ECU tunes Top 5 RENNtech Dealer 2009 ACG New York Coming soon East Coast Tuning event DC Mov 30-Dec 2 2009 NYC Dec 2-Dec 5 2009

07-07-2009, 05:39 AM	#6
1londonboy Newbie Join Date: Jul 2009 Posts: 19 Drives: cls 55 amg	i rebuilt the one that was in it, and then still bought a brand new one from merc ...and still had the problem with both of them ...but they are running still when the s/c cuts out Last edited by 1londonboy; 07-07-2009 at 09:09 AM.

07-09-2009, 09:07 PM	#18
1londonboy Newbie Join Date: Jul 2009 Posts: 19 Drives: cls 55 amg	the pump is on the right behind the bumper i took mine apart and replaced the carbon brushes....and then even bought a brand new one from mb £230...both were running when the s/c cuts out....i have stopped the car and jumped under it to check the pump is running ....which sensor should i get?...i have to replace the outside temp one in the bummper anyway cause it's gone lol....but should i get the one on the throttle body?...thanks Chris Last edited by 1londonboy; 07-09-2009 at 10:00 PM.

07-10-2009, 01:31 AM	#19
IngenereAMG PREMIUM SPONSOR Join Date: Feb 2004 Location: Arizona Posts: 2,658 Drives: SL55AMG, Ferrari 348, Ferrari Testarossa, Ferrari F40, Ferrari Mondial t, Ducati 916, Indycar	This sounds like an IC pump issue. When I replaced mine, I did the IC pump relay along with it. It is located behind the passenger seat, inside the box. Did you bleed the system after the install? When all else fails, bring it to the dealer! __________________ Ciao...Dino Aston Martin V8 Vantage SL55 AMG... delimited & 569hp/575ft lb tq Ferrari F40 (sold) Ferrari 348 Challenge... Tuned to 350 hp Ferrari Testarossa(sold) Ferrari Mondial t 87 March/Cosworth Indycar Ducati 916 BMW M3... tuned to 370 hp & delimited G500 (4sale) Mini Cooper S... tuned to 185 hp www.VelocePerformance.com

07-06-2009, 06:07 PM	#3
1londonboy Newbie Join Date: Jul 2009 Posts: 19 Drives: cls 55 amg	thats right there was no change Chris

07-07-2009, 03:43 PM	#8
1londonboy Newbie Join Date: Jul 2009 Posts: 19 Drives: cls 55 amg	yes levels are all good...if i drive it slow s/c comes back online till i give it the beans again then it shuts off...i am going to change the relay on the coolant line tomorrow not sure if thats going to help but it's cheaper than that pump was ......i'm in sunny london England Chris

07-07-2009, 05:22 PM	#10
1londonboy Newbie Join Date: Jul 2009 Posts: 19 Drives: cls 55 amg	i have taken the small plug off from the top of the hose and coolant is coming out so i take it theres no air in the pump ....thanks chris

07-09-2009, 02:37 AM	#11
MBTech221 Junior Member Join Date: Jul 2009 Posts: 23 Drives: All of them	theres really only two things that control that supercharger, the secondary coolant circulation pump ( wich is inline with the only coolant system and should be on the passenger side near the front bumper area, not like the 65s that have a seperate cooling system for the innercoolers) and possibly a bad intake air temp sensor or if you were in the area maybe disconnected. if it sees the intake temp too high it will shut off the supercharger sometimes too

07-09-2009, 06:02 AM	#12
1londonboy Newbie Join Date: Jul 2009 Posts: 19 Drives: cls 55 amg	i have looked at the outside temp ...and it's showing -40 i know i'm in london but it's that cold ....is that what would happen if it has become disconnected ?...any idea where it is ?.... Thanks chris

07-09-2009, 08:28 AM	#13
1londonboy Newbie Join Date: Jul 2009 Posts: 19 Drives: cls 55 amg	is the intake air temp sensor the same as the outside temp sensor ?....i've just seen the outside temp sensor has come lose and been ripped off ...off to go get a new one now ...

07-09-2009, 10:59 AM	#14
1londonboy Newbie Join Date: Jul 2009 Posts: 19 Drives: cls 55 amg	dealer hasn't got one have to wait till monday to get it

07-09-2009, 08:34 PM	#15
MBTech221 Junior Member Join Date: Jul 2009 Posts: 23 Drives: All of them	thats the outside temp sensor that should be in the front bumper it will read -40 when its disconnected or an open in the wiring, the intake temp sensor should be right before the throttle body. sholuld be a lil sensor with two wires. i havnt seen a outside temp sensor cause a supercharger not to come on. but it is possible. on the new c class w204 body if that is disconnect it will set a check engine light that outside temp doesnt correspond to intake air temp codes.

07-09-2009, 08:53 PM	#16
1londonboy Newbie Join Date: Jul 2009 Posts: 19 Drives: cls 55 amg	thanks for your help on this i'm pulling my hair out...i've been out in it tonight and it cuts in and out all the time ...soon as i floor it for a minute it cuts the s/c then drive slow and it comes back on...can i plug in and read that temp sensor ...or should i just get a new one ?.....thanks chris

07-09-2009, 09:00 PM	#17
MBTech221 Junior Member Join Date: Jul 2009 Posts: 23 Drives: All of them	wich pump did you replace. where was it located on the vehicle. i would def get a new outside temp sensor. but i would def take a second look at the secondary coolant circulation pump

07-10-2009, 04:08 AM	#20
MBTech221 Junior Member Join Date: Jul 2009 Posts: 23 Drives: All of them	def start with the known bad wich is the outside temp sensor. im not saying its impossible but i have seen crazier things. start with the missing outside temp sensor and report your findings

07-10-2009, 02:48 PM	#21
1londonboy Newbie Join Date: Jul 2009 Posts: 19 Drives: cls 55 amg	i'm now waiting for the outside temp sensor and the coolant pump relay both here for monday ....how should the system be bled ?...i think theres a procejure but don't know it ?...thanks

07-10-2009, 09:07 PM	#22
MBTech221 Junior Member Join Date: Jul 2009 Posts: 23 Drives: All of them	if the pump is turning on the relay is probably doing its job. but its good to replace just because whenever you do a pump. typicly to bleed the system just fill it up. warm it up and add coolant as it sucks it down. usually they dont get air pockets in the sytem. turn on your heater too. drive it and check it and top it off. the only the 65s have a seperate cooling system for the innercoolers that need to be bled with a special set up that pump the coolant through the system and pushes the air out at the same time

07-11-2009, 04:49 PM	#23
1londonboy Newbie Join Date: Jul 2009 Posts: 19 Drives: cls 55 amg	ok i'm going to get the relay moday along with the outside air temp sensor and going on what you say there's no air in the system ...i'll put both those on and report back ...have a good weekend ..

07-13-2009, 03:38 PM	#24
1londonboy Newbie Join Date: Jul 2009 Posts: 19 Drives: cls 55 amg	It works ....I changed both today and it works it was the outside air temp sensor believe it or not they must run the ecu from that one and not the block temp ?...wierd but true..happy to have my power back i need some new back tyres now.......thanks all

07-20-2009, 05:28 PM	#25
Kenny Pollock Junior Member Join Date: Mar 2009 Location: Hollywood, FL Posts: 64 Drives: 2006 CLS55 AMG	Wow, having the same issue, hopefully I can fix it- my outside temp is reading 90 degrees, which is about right.

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