1FASTC32's Cheep Intercooler Pump Replacement
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2002 c32 /////amg
ok, got my pump today, going to replace it over the weekend. couple of questions first though, when i disconnect the hoses from the old pump, how much coolant is going to flow out? all of it? also what type of coolant do i need to refill it with, and whats the proper procedure for putting the pump back on, as in i install the new pump, and start the car and let the fluid run through it? or what? any help is greatly appreciated. thanks
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From: Ohio
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Originally Posted by bViC
ok, got my pump today, going to replace it over the weekend. couple of questions first though, when i disconnect the hoses from the old pump, how much coolant is going to flow out? all of it? also what type of coolant do i need to refill it with, and whats the proper procedure for putting the pump back on, as in i install the new pump, and start the car and let the fluid run through it? or what? any help is greatly appreciated. thanks
you will lose quite a bit of coolant, just refill the plastic fill tank when you get the new pump installed and start the car and let it run...the fluid will begin to drop down and you can monitor it and keep filling it back up until the fluid level does not drop down anymore...the car's monitoring system will also tell you if the coolant is low
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2002 c32 /////amg
Originally Posted by 1FASTC32
you will lose quite a bit of coolant, just refill the plastic fill tank when you get the new pump installed and start the car and let it run...the fluid will begin to drop down and you can monitor it and keep filling it back up until the fluid level does not drop down anymore...the car's monitoring system will also tell you if the coolant is low
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From: Ohio
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Originally Posted by bViC
What type of coolant do i use? can it be just regular antifreeze mixed to the right ratio? or some special mercedes stuff? thanks for the help...
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2002 c32
Doesn't coolant also have properties that help it keep cooler, or cool faster than just water?...maybe that's what the Redline stuff is?...never heard of that.
Originally Posted by 1FASTC32
you are supposed to use the coolant that you get from mercedes, but i am not using coolant...just using water with Redline Water Wetter, i don't need coolant, it doesn't get cold enough here to warrant running it in the car...
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From: Ohio
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Originally Posted by Bif powell
Doesn't coolant also have properties that help it keep cooler, or cool faster than just water?...maybe that's what the Redline stuff is?...never heard of that.
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From: Bay Area SF
Silver 2002 C32, Silver 2006 CLK 350
Originally Posted by 1FASTC32
yup, that is what the redline water wetter is for...it claims to bring down your coolant temps by as much as 20 degrees with just water over using water/coolant...used it for years in many vehicles, never had a single problem
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Altima
Seems like a bunch of intercooler pumps failed all at the same time, about when it started to warm up. This should be a recall item.
Speaking of which, (not hijacking, just a question)... did anyone have any problems with their air pump whateverthingie before the most recent service campaign?
Didn't think so.
Interesting that with all the mechanical/electrical defects this car has, MB chose to replace that part?
Speaking of which, (not hijacking, just a question)... did anyone have any problems with their air pump whateverthingie before the most recent service campaign?
Didn't think so.
Interesting that with all the mechanical/electrical defects this car has, MB chose to replace that part?
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Joined: Feb 2004
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From: San Diego
2002 C32 Black/Charcoal
Originally Posted by drallafi
Seems like a bunch of intercooler pumps failed all at the same time, about when it started to warm up. This should be a recall item.
Speaking of which, (not hijacking, just a question)... did anyone have any problems with their air pump whateverthingie before the most recent service campaign?
Speaking of which, (not hijacking, just a question)... did anyone have any problems with their air pump whateverthingie before the most recent service campaign?
Ummmm......Yes.
The air pump is also a chronic problem.
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Altima
Originally Posted by Vomit
Ummmm......Yes.
The air pump is also a chronic problem.
The air pump is also a chronic problem.
What are the symptoms of air-relay pump failure? With all the stuff gone wrong on this POS, it's hard to distinguish one issue from another.
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From: Diamond Bar & Anaheim, CA
2003 C-Class Sportcoupe
Originally Posted by 1FASTC32
you are supposed to use the coolant that you get from mercedes, but i am not using coolant...just using water with Redline Water Wetter, i don't need coolant, it doesn't get cold enough here to warrant running it in the car...
BTW, why are people replacing their water pumps if their OEM Bosch water pump is still working and there are no power loss symtoms.
I don't think there are any performance advantages other than this is a much cheaper alternative to the OEM part, and can be an easy DIY fix. Anyways, thanks for the useful info and pics.
Last edited by pshek; Jul 3, 2006 at 11:58 PM.
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2002 c32 /////amg
Originally Posted by pshek
My car is using Redline Water Wetter and distilled H20 as well. Also using Redline synthetic motor oil. Josh R at HOP hooked me up with the good stuff.
BTW, why are people replacing their water pumps if their OEM Bosch water pump is still working and there are no power loss symtoms. I don't think there are any performance advantages other than this is a much cheaper alternative to the OEM part, and can be an easy DIY fix. Anyways, thanks for the useful info and pics.
BTW, why are people replacing their water pumps if their OEM Bosch water pump is still working and there are no power loss symtoms.
I don't think there are any performance advantages other than this is a much cheaper alternative to the OEM part, and can be an easy DIY fix. Anyways, thanks for the useful info and pics. 
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2012 GL550
I think I'm going to go ahead and do this too. After I took it in for the recall, I dont hear my pump stay on anymore when I shut off the car...it used to be noticeable and run for a few seconds after I shut off the car. The car also doesnt feel as responsive or strong. I should give this a try, although I wished I knew why it stopped working after the relay recall.
Where did you guys buy your pumps? Diversified products or eBay?
Do I need anything else besides the new pump, MB coolant, and crimp connectors. Is one bottle of coolant enough?...not quite sure how they sell it at the dealership. And what gauge wire are the two wires?
Thanks!
Where did you guys buy your pumps? Diversified products or eBay?
Do I need anything else besides the new pump, MB coolant, and crimp connectors. Is one bottle of coolant enough?...not quite sure how they sell it at the dealership. And what gauge wire are the two wires?
Thanks!
Last edited by bnz616; Jul 4, 2006 at 03:44 AM.
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Joined: Apr 2006
Posts: 78
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2002 c32 /////amg
Originally Posted by bnz616
I think I'm going to go ahead and do this too. After I took it in for the recall, I dont hear my pump stay on anymore when I shut off the car...it used to be noticeable and run for a few seconds after I shut off the car. The car also doesnt feel as responsive or strong. I should give this a try, although I wished I knew why it stopped working after the relay recall.
Where did you guys buy your pumps? Diversified products or eBay?
Do I need anything else besides the new pump, MB coolant, and crimp connectors. Is one bottle of coolant enough?...not quite sure how they sell it at the dealership. And what gauge wire are the two wires?
Thanks!
Where did you guys buy your pumps? Diversified products or eBay?
Do I need anything else besides the new pump, MB coolant, and crimp connectors. Is one bottle of coolant enough?...not quite sure how they sell it at the dealership. And what gauge wire are the two wires?
Thanks!
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From: Ohio
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Originally Posted by bnz616
I think I'm going to go ahead and do this too. After I took it in for the recall, I dont hear my pump stay on anymore when I shut off the car...it used to be noticeable and run for a few seconds after I shut off the car. The car also doesnt feel as responsive or strong. I should give this a try, although I wished I knew why it stopped working after the relay recall.
Where did you guys buy your pumps? Diversified products or eBay?
Do I need anything else besides the new pump, MB coolant, and crimp connectors. Is one bottle of coolant enough?...not quite sure how they sell it at the dealership. And what gauge wire are the two wires?
Thanks!
Where did you guys buy your pumps? Diversified products or eBay?
Do I need anything else besides the new pump, MB coolant, and crimp connectors. Is one bottle of coolant enough?...not quite sure how they sell it at the dealership. And what gauge wire are the two wires?
Thanks!
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Joined: Apr 2006
Posts: 78
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2002 c32 /////amg
Originally Posted by drallafi
I'm not the most mechanically inclined person around. In addition to the wire, spade connectors, and liquid tape, what tools will I need? Someone mentioned vice-grips to remove the hose clamps. Anything else?
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2012 GL550
Originally Posted by bViC
yeah vise grips makes those clamps easier to take off, you will also need a torx screwdriwer, because the mercedes pump uses torx screws to hold on the cover, while the ford one uses a phillips. make sure you have a deep bowl or bucket to catch all the fluid coming off, cause there is alot. or you can get some hose clamps and clap off the hose before you disconect it, and you shouldnt loose more then a few ounces.
