Toadster

OK - so I have to ask, does everyone's IC Pump die or is it just those who really flog their cars?

urbamworm

Everyone

boost420

Older IC pumps are known to die, there was an updated bosch pump that is better, but for the money, a Meziere or Johnson is an equal or better and cheaper option to the stock updated bosch. If you want to stay stock, I just replaced my almost brand new stock updated bosch pump with a cm30, so it is available, just pm me.

alextaylor29

Eveyrone, and it's cheap too. $200 or so for pump and install. I had my car for 1 week, only 23k miles on it and when I'd do repeated romps, the IC Pump cut out and the SC wouldn't engage and I'd have no power. It would come back in 10-15 seconds, so I just replaced the IC pump and never have had a problem since!

First, "Mod" eveyone should do.

Alex

TonyC

+1

55K mi. tested dead by stealership. Updated with "updated" pump thanks to warranty. I didn't bother with the CM30. So the question is: how long til the "updated" Bosch pump fail?

Ryououki

All supercharged V6 and V8 AMGs from 2002-2006 have the same crappy original pumps. They all fail. Usually between 25,000 and 60,000 miles. It's an easy fix though.

GT-ER

Everyone

danlnyc

agree with "everyone".

it's becoming a real pain in the *** when I take my car through the canyons

Benz-O-Rama

IC pump failed on my V12TT too....

Bellevue_E55

is there an easy way to tell besides logging ? My car has chrysler extended warranty so want to know what to say when go to stealer to get them to look at it. I'm not sure mine is dead but car definitely performs very differently in 30 - 45 degree weather vs 45 and above. In the colder weather it feels like when I first purchased it.

My car is a 2006 with 66K

danlnyc

try drag racing a couple times. It will be all good until you slam on the accelerator and...nothing. You'll know.

tbal

Yup you will know... car will feel like it lost half its power

Ryououki

With a dead IC Pump, I ran a 16.50 @ 75.333MPH in the quarter mile. So the car went from being an E55 to being a Toyota Camry.

pearlpower

Running a WP136 on stock cooling, I noticed my temps were higher vs the Bosch '10 pump and 30 pump. Flowed too fast to cool. All about balance.

AKnight55

Mine as well replace it anyway instead of guessing. Cheap fix anyway. Feels like a e320 with a dead pump. You'll know it.

alextaylor29

Yes replace it. The pump is $150 and labor is $50, so for $200 you're good to go. It's a, "Must do" mod for an E55.

Trust us.

justinwrock

Replaced the OEM Bosch unit in my E55 with a CM30 when I bought it.


Took me 3 hours.... Including several stops for beer along the way.

WHTEVO

alextaylor29

Isn't this because the S/C actually cost the engine HP due to it's drag? I read somewhere that on our 5.5L SC engine the SC itself "Costs" 50-75 HP just to run it. This of course is more than offset when it's slamming air into the engine.

If it didn't then our 5.5L V8 without the SC turning should still give us great power. (400HP range.)

So do the pump, you will not be disapointed!

Alex

TheOtherDodge

Yup they cost horsepower for sure. That is why a turbo is more efficient.

regor60

One of the tuners here indicated a dyno of 250 hp with non operating pump as I recall

Toadster

interesting - even fixes found on Craigslist

http://sfbay.craigslist.org/pen/pts/2774162030.html

NOT_HADI

Even with the stock pump still functional (buzzing and water flow when removing bleeder cap) my Super Charger would shut down after a couple of pulls on the freeway. So even if not completley dead, a failing pump creates issues.

EVERYONE is the correct answer to the question

realien

I've heard some threads state the cm30 pump breaks down and the updated Bosch pump is better and others say the CM30 is a better pump. Is the different the CM30 flows more but breaks down and the new bosch is more reliable but doesn't break down as much ? I having some repairs done so was going to replace the pump at the same time and needed to determine which one to buy.

realien

Anyone have an opinion on this, would like to order the part.