C32 AMG, C55 AMG (W203) 2001 - 2007

Coolant Pump Failure Poll. Has yours failed? At what odometer reading? Model year?

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Old 09-11-2006, 10:28 AM
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C32 AMG
Coolant Pump Failure Poll. Has yours failed? At what odometer reading? Model year?

I want to get a sense of what percentage of these things are failing, and if so, at what mileage. If there's a high failure rate, and predictable timeframe, it may be good cause to seek help from MB. They want to nurture their AMG owner base. They should step up and extend warranties if that's the case.


My answer:

2002 C32.
40,000 miles.
Pump has not failed.
Old 09-11-2006, 10:49 AM
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Silver 2002 C32, Silver 2006 CLK 350
2002 c32 57000 miles
pump didnt fail but replaced
Old 09-11-2006, 11:23 AM
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a C32 AMG & S-Works Tarmac
2002 C32
47,000 miles
Pump failed and replaced under warranty.
Old 09-11-2006, 11:49 AM
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CLS55 Designo 030
2002 C32
70,000 miles
Pump failed right after the relay service campaign
I paid for the part, stealership absorb the labor (no charge)
Old 09-11-2006, 12:00 PM
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Audi C7.5 S6
2003
C32
Pump failed at 35k miles
Replaced under warranty
Old 09-11-2006, 12:07 PM
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S600TT, R350
2002, failed at 24,000 miles. Replaced with Johnson pump.
Old 09-11-2006, 12:34 PM
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...
'02 C32, failed at 86,000miles, replaced with ford lightning pump...
Old 09-11-2006, 12:49 PM
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mine is failing..

i have ON and OFF power... during runs...and cruising around town.

i will use the ford pump to replace, since I'm going to sell the car.
Old 09-11-2006, 01:12 PM
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a C32 AMG & S-Works Tarmac
Just a thought......but won't it appear as though you have 100% failure, in your poll, because the people responding (such as myself) are the people that have had the i/c pump fail?

The only way to tell the failure rate would be to have all C32 owners polled. I'm guessing that a majority fail around 40 to 50K but a strong percentage might never fail. Just my $.02.
Old 09-11-2006, 02:03 PM
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C32 AMG
Originally Posted by ScottW911
Just a thought......but won't it appear as though you have 100% failure, in your poll, because the people responding (such as myself) are the people that have had the i/c pump fail?

The only way to tell the failure rate would be to have all C32 owners polled. I'm guessing that a majority fail around 40 to 50K but a strong percentage might never fail. Just my $.02.
Well, it's 5 of 7 (or 5 of 8 if yours didn't fail). I actually asked for answers either way, and started it with my own experience (no failure). It's a crappy poll, but I wanted to get a sense for how often it happened, and how many of the stories were repeats of the same story. On the AudiWorld boards, there was nonstop discussion of turbo failures, but when you took a poll, precious few were actually failing. It was a handful of occurences being repeated.

Looks like the coolant pump is a weak point.
Old 09-11-2006, 02:54 PM
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S600TT, R350
Over the years, I have spoken to over twenty different C32 owners with failed pumps. There were also a number of 55 owners and one 65 with failed pumps as well.

The questions are:

- Will it fail on every car? Or a certain percentage?

- When? At what age? Mileage?

- Is there a way to prevent it?

On the forum we just do not have enough owners to make predictions and be 100% certain.

If I just bought a C32, that would be the first thing to check out or if you want to be 100% sure - replace.
Old 09-11-2006, 04:15 PM
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2006 SLK55 AMG/// 2006 Porsche CaymanS 2010 135i
[QUOTE=Fifth Ring;1751135]I want to get a sense of what percentage of these things are failing, and if so, at what mileage. If there's a high failure rate, and predictable timeframe, it may be good cause to seek help from MB. They want to nurture their AMG owner base. They should step up and extend warranties if that's the case.


My answer:

2002 C32 17,500 miles without failure
2005 C55 15,600 miles without failure

2006 SLK55* 6,500 mile without failure
(*assuming same pump etc)
Old 09-11-2006, 04:56 PM
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2002 c32
[QUOTE=Marktini;1751525]
Originally Posted by Fifth Ring
I want to get a sense of what percentage of these things are failing, and if so, at what mileage. If there's a high failure rate, and predictable timeframe, it may be good cause to seek help from MB. They want to nurture their AMG owner base. They should step up and extend warranties if that's the case.


My answer:

2002 C32 17,500 miles without failure
2005 C55 15,600 miles without failure

2006 SLK55* 6,500 mile without failure
(*assuming same pump etc)
Your 55s aren't going have super-charger intercooler pump failure, FWIW.

For the poll/record, I'm at about 50k miles and I have not had an intercooler pump failure. I will be replacing mine before the winter storage though.
Old 09-11-2006, 05:33 PM
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C32 K AMG 03/2002
2002 C32 I/C pump failure after hitting 55k miles mark
replaced at 43% of the total cost (new part+labour) because of the italian law for cars over 4 years of "age"
in simple words: 190€ / 235$, job done by official MB dealer using regular MB spare part
Old 09-11-2006, 09:05 PM
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03 C32
Mine went out at around 42k miles. It was covered under warranty.
Old 09-11-2006, 09:37 PM
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Audi C7.5 S6
Do the 2003/up E55s have the same IC pump and how many have failed?
Old 09-12-2006, 02:47 PM
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C32 AMG Maserati Coupe GT
C32/2002 - Failed at 32K

Owner since new. Pump failed after the AMG service campaign on June 2006.

Last edited by dchao; 09-12-2006 at 02:52 PM.
Old 09-13-2006, 07:28 AM
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been failling for some time.. Finally died tonight 49,500 miles
Old 09-14-2006, 03:57 AM
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the factory hose clamps are a pain in the ***! just needed to vent..... Replaced the pump in about an hour, stupid clamps... Car feels great with the new pump!
Old 09-14-2006, 11:49 AM
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Audi C7.5 S6
If you do a search on the E55 forum, for pump failure, there are lots of intercooler pump failures. Kleeman builds an upgrade kit for the E55 and appraently Evosport has something also. Some use a Johnson pump.

https://mbworld.org/forums/search.php?searchid=2086024
Old 09-14-2006, 08:30 PM
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2002 C230k
Mine failed at 52,000 miles. After regular warranty expired, but fortuantely I bought a 7 year/100k warranty when I bought the car - so it was covered by the extended warranty.
Old 09-14-2006, 08:42 PM
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2002 C32 ///AMG
Aside from the lack of power occasionally, how do you know for sure if the pump is failing or failed?
Old 09-14-2006, 09:01 PM
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a C32 AMG & S-Works Tarmac
Originally Posted by hkycoldrct
Aside from the lack of power occasionally, how do you know for sure if the pump is failing or failed?
That is pretty much it. The hotter the temps outside, the more pronouncable the loss of power. Last week, when things were pretty hot here is So Cal, you definately should have felt it when the engine warmed up. Sometimes the computer with throw a code that the dealership will pick up. The first time I went in for the pump, the computer did not throw the code, the second time it had. Bam. It was replaced.
Old 09-15-2006, 03:40 AM
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Scott, Caliber ?
Old 09-15-2006, 12:02 PM
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a C32 AMG & S-Works Tarmac
Originally Posted by N.M.M.
Scott, Caliber ?
Huh? Are you referring to Caliber in A. Hills?


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