Intercooler pump finally died.
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Super Member
Joined: Oct 2005
Posts: 825
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2002 c32
Intercooler pump finally died.
This was preceded a few days ago by a message on my instrument cluster about "SOS call Shop" something like that. I assumed that this was telling me that my service interval was up, but maybe it's something else?...
As for the pump, it was holding out well for the last 20k miles or so and then yesterday, I went to pass someone, the engine made noise like it wanted to go but...no go
Could it be something else and related to the SOS message I got previously?
The sad part is that I would like to replace it with a higher performing part and maybe do a separated reservoir and bigger heat exchanger, but my S4 is completely torn apart taking up my entire garage (pulling the motor and tranny for a stasis rebuild/stage 3+) so I think I'm going to just have to bite the bullet at the stealership
For you guys that have done this, how big a job is it to just replace the pump?...maybe I can do it out on the drive-way? Do I have to take the bumper off?
As for the pump, it was holding out well for the last 20k miles or so and then yesterday, I went to pass someone, the engine made noise like it wanted to go but...no go
Could it be something else and related to the SOS message I got previously?The sad part is that I would like to replace it with a higher performing part and maybe do a separated reservoir and bigger heat exchanger, but my S4 is completely torn apart taking up my entire garage (pulling the motor and tranny for a stasis rebuild/stage 3+) so I think I'm going to just have to bite the bullet at the stealership
For you guys that have done this, how big a job is it to just replace the pump?...maybe I can do it out on the drive-way? Do I have to take the bumper off?
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Joined: Mar 2007
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From: Houston, TX
C32/C55 AMG
Before anyone tells you to do a search, which you should. Check out this thread about a cheap alternative to going to the dealer to get your pump fixed. Seeing how you are mechanically inclined, putting on the replacement should be a piece of cake. Also, I don't believe you have to take off the bumper. They should make that thread a sticky for all the members, apparently the pumps are very limited in their life span.
https://mbworld.org/forums/c32-amg-c55-amg-w203/146457-1fastc32-s-cheep-intercooler-pump-replacement.html
https://mbworld.org/forums/c32-amg-c55-amg-w203/146457-1fastc32-s-cheep-intercooler-pump-replacement.html
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From: Santa Barbara & Los Angeles, CA
C32, Cobra, 700hp Vespa
Its kinda tight if you just take off the wheel, and do it from the back. After working on the HE project, I realized how easy it is to take the bumper off. With the bumper off, its a 10 minute job. I can get the bumper off in about 10 minutes now. If I do any more pump work, which I will be in the future, I will just take the bumper off instead of busting up my hands.
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From: Ohio
...
i installed my new CM30 pump yesterday without removing the bumper...took an hour with me taking my time, very easy to do...
Bif, if you want my old pump, which is working fine, i just wanted to upgrade, you can have it...just pay for shipping and i will get it shipped out asap...
let me know if you want it...
Bif, if you want my old pump, which is working fine, i just wanted to upgrade, you can have it...just pay for shipping and i will get it shipped out asap...
let me know if you want it...
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MBWorld Fanatic!
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C32 AMG
Quick question. When you take off the old pump hoses, what amount of fluid leaks out? Do you just let it run out, or do you plug the hoses? When installing the new pump, do you need to do anything to ensure that the pump does not run dry? Is there a priming process?
I've mentally replaced my pump a few times already, and this is the step that is still mysterious to me.
(Ford Lightning (Bosch) pump is waiting in the wings, prewired and ready to go.)
I've mentally replaced my pump a few times already, and this is the step that is still mysterious to me.
(Ford Lightning (Bosch) pump is waiting in the wings, prewired and ready to go.)
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Joined: Aug 2005
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Quick question. When you take off the old pump hoses, what amount of fluid leaks out? Do you just let it run out, or do you plug the hoses? When installing the new pump, do you need to do anything to ensure that the pump does not run dry? Is there a priming process?
I've mentally replaced my pump a few times already, and this is the step that is still mysterious to me.
(Ford Lightning (Bosch) pump is waiting in the wings, prewired and ready to go.)
I've mentally replaced my pump a few times already, and this is the step that is still mysterious to me.
(Ford Lightning (Bosch) pump is waiting in the wings, prewired and ready to go.)
On mine, I just put a small bucket underneath and let the lines drain into it. It's not that much fluid, perhaps 1/3 to 1/2 gallon. As long as the container is clean and so is the fluid that was drained, you can simply return it to the overflow reservoir when done. The pump does not require priming - it's plug & play.
My favorite piece of advice in the original tutorial thread is to use vice grips to release the hose clamps and leave them in place while you put the new pump in. Makes the whole job faster, because a good deal of your effort is just getting the clamps released in such tight quarters.
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From: Ohio
...
on mine, because i have the seperate reservoir on my car, i lost almost 2 gallons...
one thing to note: on my 2002, i had to rev the car up to like 4,000rpms in order to get the pump to start pumping fluid... i did this to make sure i got all of the air out of the system and that the reservoir was full before the first drive...
one thing to note: on my 2002, i had to rev the car up to like 4,000rpms in order to get the pump to start pumping fluid... i did this to make sure i got all of the air out of the system and that the reservoir was full before the first drive...
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Joined: Sep 2006
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From: Santa Barbara & Los Angeles, CA
C32, Cobra, 700hp Vespa
Definitely purge the system after you get everything back together. Let the car idle until you hear the pump start working, and you will see the fluid start to get low, as well as air bubbles being worked out. Simply keep adding fluid until it stays full. Often times, more air bubbles will work there way out after the first drive. Just make sure to check it again and fill if needed. Its a simple process.
Thread Starter
Super Member
Joined: Oct 2005
Posts: 825
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2002 c32
i installed my new CM30 pump yesterday without removing the bumper...took an hour with me taking my time, very easy to do...
Bif, if you want my old pump, which is working fine, i just wanted to upgrade, you can have it...just pay for shipping and i will get it shipped out asap...
let me know if you want it...
Bif, if you want my old pump, which is working fine, i just wanted to upgrade, you can have it...just pay for shipping and i will get it shipped out asap...
let me know if you want it...
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From: Bloomfield Hills, MI
W203, W211, W219, W212
Its kinda tight if you just take off the wheel, and do it from the back. After working on the HE project, I realized how easy it is to take the bumper off. With the bumper off, its a 10 minute job. I can get the bumper off in about 10 minutes now. If I do any more pump work, which I will be in the future, I will just take the bumper off instead of busting up my hands.
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Joined: Mar 2006
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From: Ohio
...
it will not loosen up, it is just a pain to get it lined up just right by yourself, it is pretty easy to do with someone helping...
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From: Orange County, CA
GMC - Miata - Trek - P-Car
Thread Starter
Super Member
Joined: Oct 2005
Posts: 825
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2002 c32
I think I'm going to have this coincide with my head-light swap and just take the bumper off. Eventually I'll do a bigger HE and it's probably good to have this procedure under my belt anyways
Thanks for the tips - and free inter-cooler pump
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From: Ohio
...
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