C32 coolant loss
Thread Starter
Newbie
Joined: Aug 2006
Posts: 21
Likes: 0
From: Cheshire, UK
2002 C32 AMG Peugeot 205 Rally car. Honda VFR Vtec
C32 coolant loss
Folks,
I've got a C32 which is loosing a small amount of coolant per day. We're talking about 0.5" of coolant over my drive to work say 50 miles per day.
The car has been to Mercedes and pressure tested and no coolant was lost from the pressure test. There are no signs of any external coolant loss.
If it was the air / intercooler issue would this show up under pressure test ?
Anyone any ideas on the best way of diagnosis ?
Thanks
BS.
I've got a C32 which is loosing a small amount of coolant per day. We're talking about 0.5" of coolant over my drive to work say 50 miles per day.
The car has been to Mercedes and pressure tested and no coolant was lost from the pressure test. There are no signs of any external coolant loss.
If it was the air / intercooler issue would this show up under pressure test ?
Anyone any ideas on the best way of diagnosis ?
Thanks
BS.
Senior Member
Joined: Nov 2006
Posts: 259
Likes: 0
From: Ottawa, Ontario
C32 AMG - in Pewter
What is the milage on your car?
Do you notice S/C not working some times when you accellerate?
Does the transmission shift rough sometimes?
Any other symptoms?
I had small coolant loss along with the S/C working sometimes only. They changed the intercooler pump (the most certain part to fail in a C32) and I have not noticed coolant loss so far, two weeks later (should check again tonight). Seems the faulty pump was leaking a bit...
Do you notice S/C not working some times when you accellerate?
Does the transmission shift rough sometimes?
Any other symptoms?
I had small coolant loss along with the S/C working sometimes only. They changed the intercooler pump (the most certain part to fail in a C32) and I have not noticed coolant loss so far, two weeks later (should check again tonight). Seems the faulty pump was leaking a bit...
Thread Starter
Newbie
Joined: Aug 2006
Posts: 21
Likes: 0
From: Cheshire, UK
2002 C32 AMG Peugeot 205 Rally car. Honda VFR Vtec
What is the milage on your car?
Do you notice S/C not working some times when you accellerate?
Does the transmission shift rough sometimes?
Any other symptoms?
I had small coolant loss along with the S/C working sometimes only. They changed the intercooler pump (the most certain part to fail in a C32) and I have not noticed coolant loss so far, two weeks later (should check again tonight). Seems the faulty pump was leaking a bit...
Do you notice S/C not working some times when you accellerate?
Does the transmission shift rough sometimes?
Any other symptoms?
I had small coolant loss along with the S/C working sometimes only. They changed the intercooler pump (the most certain part to fail in a C32) and I have not noticed coolant loss so far, two weeks later (should check again tonight). Seems the faulty pump was leaking a bit...
Its a 2002 w. 41k.
Couple of months ago the S/C started to fail, and I had the IC pump shortly after, this resolved the issue. Transmission feels fine and when the SC IC pump was replaced the dealer checked that the transmission has no coolant in it..... that was all before the coolant loss though !
No signs of any external leakage sadly, however I will put the car on a lift this weekend and check the pump througly.
Banned
Joined: Mar 2006
Posts: 2,855
Likes: 2
From: Southern California
S600TT, R350
The only way to confirm coolant leak is to remove one of the intake manifolds (it is the one with AMG cast on). If your intercooler is leaking you will see green residue.
If it is green, than the only fix is to replace it.
Good Luck!
If it is green, than the only fix is to replace it.
Good Luck!
Thread Starter
Newbie
Joined: Aug 2006
Posts: 21
Likes: 0
From: Cheshire, UK
2002 C32 AMG Peugeot 205 Rally car. Honda VFR Vtec
On with monitoring the loss...
If it is the air/water intercooler, does it loose the water whilst engine running, or when the engine is shut off ? Surely the air pressure from the compressed air that it is trying to cool would keep the water in the intercooler ????
10mm (3/4") of coolant loss during past 24h which involved 38miles of driving. You can see 2 really faint lines lower one has a line and a T(uesday), the upper has an M(onday), but it's real faint.
If it is the air/water intercooler, does it loose the water whilst engine running, or when the engine is shut off ? Surely the air pressure from the compressed air that it is trying to cool would keep the water in the intercooler ????
10mm (3/4") of coolant loss during past 24h which involved 38miles of driving. You can see 2 really faint lines lower one has a line and a T(uesday), the upper has an M(onday), but it's real faint.
Senior Member
Joined: Nov 2006
Posts: 259
Likes: 0
From: Ottawa, Ontario
C32 AMG - in Pewter
BTW, this seems to be a generic coolant, judging by the color. I read on this forum that we should use a special (MB brand?) coolant that has anti corrosive component. It is more yelowish (no green tint) in color. That may help prolong the intercooler core life, if it is not the culprit in your case.
Thread Starter
Newbie
Joined: Aug 2006
Posts: 21
Likes: 0
From: Cheshire, UK
2002 C32 AMG Peugeot 205 Rally car. Honda VFR Vtec
BTW, this seems to be a generic coolant, judging by the color. I read on this forum that we should use a special (MB brand?) coolant that has anti corrosive component. It is more yelowish (no green tint) in color. That may help prolong the intercooler core life, if it is not the culprit in your case.
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Thread Starter
Newbie
Joined: Aug 2006
Posts: 21
Likes: 0
From: Cheshire, UK
2002 C32 AMG Peugeot 205 Rally car. Honda VFR Vtec
Thread Starter
Newbie
Joined: Aug 2006
Posts: 21
Likes: 0
From: Cheshire, UK
2002 C32 AMG Peugeot 205 Rally car. Honda VFR Vtec
Cool, thanks.
Just found all the parts on a local MB parts search engine.
I won't go into details as I'm trying to get MB to fix it.... lets just say that MB cannot find the cause for the loss, although admitted to the fact it is loosing coolant.
Car is under warranty, but it physically isn't broken... aAAggggrrrrrr
Having a nightmare with it. 2 visits down the line with MB and still not resolved.
One of these days I hope it hydrolics through water ingress....
Just found all the parts on a local MB parts search engine.
I won't go into details as I'm trying to get MB to fix it.... lets just say that MB cannot find the cause for the loss, although admitted to the fact it is loosing coolant.
Car is under warranty, but it physically isn't broken... aAAggggrrrrrr
Having a nightmare with it. 2 visits down the line with MB and still not resolved.
One of these days I hope it hydrolics through water ingress....
Member
Joined: Oct 2002
Posts: 223
Likes: 0
From: Clarksville, MD
C32 AMG, CLK 320
I sold my car two weeks ago. The car has seen many track miles.
Coolant leaking into the engin is a big problem for your plugs and cats. Plus the car is not as fast as it should be.
The dealer gave me a new SC, intercooler, plugs, and cats at 60K mile when my car was under warranty. The problem happened again at 140K.
Coolant leaking into the engin is a big problem for your plugs and cats. Plus the car is not as fast as it should be.
The dealer gave me a new SC, intercooler, plugs, and cats at 60K mile when my car was under warranty. The problem happened again at 140K.
Thread Starter
Newbie
Joined: Aug 2006
Posts: 21
Likes: 0
From: Cheshire, UK
2002 C32 AMG Peugeot 205 Rally car. Honda VFR Vtec
I'll PM you. Wont go into public details. I know they read this forum... well I told 'em to !
Thread Starter
Newbie
Joined: Aug 2006
Posts: 21
Likes: 0
From: Cheshire, UK
2002 C32 AMG Peugeot 205 Rally car. Honda VFR Vtec
Spoke with the Warrenty people this morning. Under their Terms and Conditions they will not pay for an investigation into the coolant loss as the car has not failed. Upon failure they will pay for labor and parts.
As I pointed out, this is a stupid situation. Potentially the engine may, in the worst case hydrolic.
Fine bring on a major engine catastrophie...bring it on !
Guys with C32's ~ Have any of you had the Intercoolor failure, if so how long did it take before something substancial failed ?
Apparently coolant loss is not deemed as failure
As I pointed out, this is a stupid situation. Potentially the engine may, in the worst case hydrolic.
Fine bring on a major engine catastrophie...bring it on !
Guys with C32's ~ Have any of you had the Intercoolor failure, if so how long did it take before something substancial failed ?
Apparently coolant loss is not deemed as failure
Last edited by blackscooby; Dec 8, 2006 at 09:07 AM.
