shawn 81

hi pleasure to be on board ive got a few questions about my car that im not to sure about .the first is sometimes when i open the car up on the high way to govener after the car seems to go in to like a limp mod or fuel of some sort im not to sure if it is a computer thing or mechanical this happens for about a minute or two before the power is back nest is can you shut the traction controll off through the computer completly

uthustler

any mods?

BenzoBoi

intercooler pump... that is yer problem...

shawn 81

thanks for your help thats what i think to i have no mods and i dyno the car and it made 410hp and 442 on 91 oct and on the second and third pass it dropped approx 20 and 20 so i figured something was up

zoink

+1

Hazy1

+4,657,987,972,145. Anyone know of the best deal currently on a CM30, mine just started again yesterday.

IMG-AMG

Glad to see someone else is having that problem.
I just purchased a 2005 E55 with 10k miles and having that same issue.
It happens in both S and M mode especially if I am in 2 or 3 gear.
If I am in high revs on the highway at 85mph in 3 gear and punch it, there is nothing... zero.
Other times I can be just going along and punch it and it is the beast.
What gives...
Can anyone expand on this with re: the intercooler pump or anything else?

Your help is appreciated
Ian

sl500e55k

I have exactly the same problem. Dealer said it's probably because car was close to it's limits and was reducing power for safety. No way. From around 30 to 80 at about threequarters throttle is hardly "on the limit". That was in a straight line too. I've only had this a couple of weeks and I think it will be a while before I even start to think about exploring the car's limits. To tell the truth, I expected a fast car, but I wasn't prepared for the sheer brute force of it. Thanks for any help, Nick.

E55Freak

To the newbies..I don't own an E55 but have been on this board long enough to understand what this whole intercooler pump issue is. The stock intercooler pump is what helps keep your supercharger from overheating during normal acceleration. Of course during hard acceleration it just can't keep up with the heat being generated so it disengages the supercharge until it gets to a normal temp. This of course happens after a few hard accelerations and then your car feels like an E320 (No Offense to any 320 owners ). Many memebers have replace the stock IC pump with an aftermarket one and have reported favorable results. Hope this helps with the IC problem and many new memebers always report this as their first "worry." Keep in mind the daytime temperature will also have an affect on this as well. on a cool day it may not do it as much, where as a hot summer day it may take only one or two hard passes to act up. AS I said I'm not an expert but just passing along info as I understand it as well. Anyone else who has performed the mod please chime in. I'm hoping to look for an E55 soon but with the price of a new C63 I may opt for that..

sl500e55k

Thanks for that. If that's the problem maybe the pump is not working at all as it was a cool day in the UK and I only accelerated for a few seconds at no more than threequarters throttle. E320 performance sounds about right. I'll put it to dealer tomorrow and see what he says. Thanks again, Nick

I Like Soup

You can get a CM30 Johnson pump for $125 at Leading Edge Technologies. Well, you can order it, but from what Erick tells me, they will get some in within a week or so and be shipped out. I'm getting the pump and a heat exchanger just so I avoid this issue all together; not to mention, I live in the Phoenix area so any extra cooling capacity is welcome indeed!

Good luck!

MysticCobra1200

What were the temperautres that day

sl500e55k

Spoke to M-B today and they quoted £218.55 to supply stock pump and £93.00 to fit. With labour at £90 ph it must be an easy job. They also said problem could be a secondary air valve or meter, I can't remember which. Their price certainly makes Erick's CM30 good value at $175 delivered to UK. Looks like I'll have to have one.

DFW01E55

Wow, 4.6 trillion times that this question has been answered.

I'm not so sure, I think it's really only 1 million.

For you guys having the loss of power problem, try searching on "intercooler pump" or "i/c pump" or "charge air pump" and you'll see that over 100 posters have had the same problem. Maybe it's not a million posters, but it's a lot!

regor60

I think only under the most extreme conditions would a PROPERLY functioning pump not deliver enough cooling. So, if your losing power due to high IAT, as mine did, which apparently reduces power to 250hp, it is almost certainly due to a failing pump. But it's like heart failure, the heart pumps, but it's failing

Hazy1

While I genuinely wasn't intending to come across as a dick or scold the OP, I did think that my estimate was a bit on the conservative side.

efivefiveamg

guys, i too have been noticing this very same loss of power. i researched the topic here and found countless threads on it. i printed the best ones, set up an appt. with my SA and took them in hand today. my SA said he would check it out but if he cant find any problems and gives me a hard time about replacing the pump, i will be marching right back in with my printed threads.

thanks for all the great info, as usual!

DFW01E55

Let's wait until the end of March and count again - you may have nailed it.

TopGun32

the pump will only solve the kompressor shut down.. but it will not help with ITA's (do a search)

even the best pump paired with the stock heat exchanger will not help you put all the power down on a hot day.

Seach Code3 Performance for a larger Heat Exchanger.. if you are in a hot weather state.. the problem will only get worst in the summer.

They are only like $700 bucks and super easy to install. Just need to have the bumper off. You should install a new pump at the same time.

I Like Soup

Yep, still waiting on mine. I went with the 7" core though (read: more than $800) since I figured being in Phoenix, the more cooling capacity the better.

TopGun32

smart move..

I drove to Phx last October for a church event.

It was 90 degrees the whole way and I was loaded with kids and luggage.

Power was non-stop.. no issues at all.

Also when we had the fires, we were hitting close to 100 degrees around here and no power issues.

Make sure you use mostly water and add some Water Wetter. to your mix.

efivefiveamg

need your advice...my car has been at the dealer for few days now, after i reported the problem as "a loss of power". dealer called yesterday and said they wanted to keep the car one more day b/c they still havent found any problems.

i anticipate they will say there is no problem. anyone have advice on where i should i go from there?

joshd

As a general rule (still looking for exceptions personally), dealers suck so hard.

Just buy the CM-30 from LET or ebay and install it yourself or pay someone to do it. There is a how-to install thread on here from Vadim on it with pics and everything. It flows 2x the stocker and is apparently much more reliable anyway. All in cost should be < $300 if you pay someone for the install ... ~$120 just for the part.

F$$$ the dealer.

efivefiveamg

^ thanks for the advice. btw...i am fairly certain the answer is "no", but would installing an "aftermarket" pump such as this void the warranty in any respect?

thanks again.

I Like Soup

While I agree the CM30 is the better choice from what I've read, I think the 2x flow is incorrect. A poster noted that it took 55 seconds for a CM30 to pump 5 gallons (if memory serves), and it took 58 seconds for the stock Bosch unit to pump the same amount. It isn't the extra flow you are after with the CM30, it is the consistent reliable flow rate you are after.

And...still waiting...