Bogged down after a couple redlines
Thread Starter
Senior Member
Joined: Jul 2004
Posts: 369
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From: SF Bay Area
W211 E55
Bogged down after a couple redlines
Hey all,
After a couple redlines my 03 e55 seems to go into some type of safety mode where I loose most of my power completely. Usually comes back after a few minutes?
Intercooler pump?
Thanks
Jason
After a couple redlines my 03 e55 seems to go into some type of safety mode where I loose most of my power completely. Usually comes back after a few minutes?
Intercooler pump?
Thanks
Jason
MBWorld Fanatic!
Joined: Feb 2005
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From: Hollywood CA
2011 twin turboed prius
Your car is going into limp mode. Most likely a pump, your too hot. If your pump is bad you will lose power after a few attempts at WOT
Super Member
Joined: Apr 2009
Posts: 837
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From: Tacoma WA
Bicycle
How do you plan on using the car? Just a daily driver with a once in awile blast or going to go to the track or more racing? You may want to consider a pump upgrade and splitting the system, Other wise just replace the pump.
The progression of cooling is like this:
Upgraded pump
+ split the system
+ Heat exchanger
+ rear tank res.(ice as needed)
+ Water/meth injection
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Joined: Jul 2005
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From: OC
AMG E55, Stage 1, Strait Pipe from Primary Cats
MBWorld Fanatic!
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From: Colorado
07' SL65, 04' E55, 03' Evo8, 08' GSXR, DSM's...
Yup replace that pump and you'll be good to go. I was so happy when i changed mine. No more shutting down after those high speed runs down in Mexico.
Aaron
Aaron
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Thread Starter
Senior Member
Joined: Jul 2004
Posts: 369
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From: SF Bay Area
W211 E55
Just replaced it, took about a hour and a half. Super easy and I'm no mechanic by a long shot.
Already feeling a pretty big difference through the gears.
One question:
By the electricals, there was a very small hose connected to the stock pump that the CM30 did not have. No fluid came out of it when I disconnected it, so I just left it dangling there and there doesn't seem to be a problem. Anybody know what I'm talking about?
Already feeling a pretty big difference through the gears.
One question:
By the electricals, there was a very small hose connected to the stock pump that the CM30 did not have. No fluid came out of it when I disconnected it, so I just left it dangling there and there doesn't seem to be a problem. Anybody know what I'm talking about?
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Joined: Feb 2009
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From: Central WI (BFE)
SL55, ML500 & Acura TL
The Johnson pump has higher flow rates than the stock pump. As intake air temps (IATs) rise, power drops off so higher IC pump flow rates keep IATs cooler and result in less power loss.
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E55
^ Higher flow as reported by who, Johnson manufacturing?
I do not recall anyone measuring flow of both pumps while pushing coolant through the i/c or h/e.
There was a short video of someone measuring the time it took for each pump(stock Vs Johnson) to fill a bucket and the results were identical.
I would just replace your pump with the stock pump.
I do not recall anyone measuring flow of both pumps while pushing coolant through the i/c or h/e.
There was a short video of someone measuring the time it took for each pump(stock Vs Johnson) to fill a bucket and the results were identical.
I would just replace your pump with the stock pump.
Senior Member
Joined: Feb 2007
Posts: 463
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From: South Florida
2014 E63, Cobra replica, 68 Camaro, 66 Chevy II SS, Z4 BMW, Honda Element, Birel 125cc Shifter Kart.
I replaced the stock pump on my 06 with a cm30 when I first got the car due to all the threads on the forum saying how bad the stock pump was and what an improvement the CM30 was. I noticed no difference at all in the performance of my car with the CM30.
My dealer freaked out on the CM30 pump and, "suggested", I put my old pump back if I wanted to maintain my warranty. So I did, and it promptly quit working. Dealer replaced it with the new style Bosche pump under warranty and it's been working great ever since.
My take after all this is, that if you're going to replace the pump, replace it with the new Bosche and not the CM30. The Bosche was designed for the car and the newer models don't quit. The CM30 works OK but was originally designed as a bait well pump for your fishing boat. It flows a little more than the Bosche but if increased flow is the goal, there are other pumps that flow a lot more than either.
My dealer freaked out on the CM30 pump and, "suggested", I put my old pump back if I wanted to maintain my warranty. So I did, and it promptly quit working. Dealer replaced it with the new style Bosche pump under warranty and it's been working great ever since.
My take after all this is, that if you're going to replace the pump, replace it with the new Bosche and not the CM30. The Bosche was designed for the car and the newer models don't quit. The CM30 works OK but was originally designed as a bait well pump for your fishing boat. It flows a little more than the Bosche but if increased flow is the goal, there are other pumps that flow a lot more than either.
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2004 E55
Don't waste your time and money on another OE.
