Low coolant warning, false alarm?
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From: Hong Kong
'02 C32; '02 M5; '08 328i (US)
Low coolant warning, false alarm?
Hmm.. I got the low coolant level warning last nite, I was close to home and it was very late so I thought I'd deal with it in the morning. And my GF took the car out early in the morning and she said everything was fine and no warning... So I checked the coolant and it was like 0.5 liter down, it was hardly even low at all..
When should the warning starts to come up? I thought it would be at least half the tank empty before it's triggered? Was it just a false alarm, or would it be possible be a false???
When should the warning starts to come up? I thought it would be at least half the tank empty before it's triggered? Was it just a false alarm, or would it be possible be a false???
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C32 AMG
Keep an eye on it. It could be a sign that coolant is leaking into the transmission, which is a not-uncommon problem with the C32. In fact, it does serious damage to the transmission, so if the warning recurs, I'd have it looked at ASAP.
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From: Silicon valley
Audi C7.5 S6
Yeah, it is a very high probability, that you have a leak in the supercharger intercooler, which is cheaper to fix than replacing transmission and radiator.
Have this checked soon. The IC is around $1800 and the supercharger must be removed to replace the IC (additional labor). This is VERY common.
Have this checked soon. The IC is around $1800 and the supercharger must be removed to replace the IC (additional labor). This is VERY common.
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From: Diamond Bar & Anaheim, CA
2003 C-Class Sportcoupe
If the intercooler core is leaking, then shouldn't you be able tell by looking at the exhaust fumes? I saw a Kleeman CLK55 W208 that had a leaking intercooler core, and when I looked at the exhaust fumes, you could see steam that seemed to hang in the air. Another way to test would be to check for glycol contamination in the transmission fluid.
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C32 AMG
If the intercooler core is leaking, then shouldn't you be able tell by looking at the exhaust fumes? I saw a Kleeman CLK55 W208 that had a leaking intercooler core, and when I looked at the exhaust fumes, you could see steam that seemed to hang in the air. Another way to test would be to check for glycol contamination in the transmission fluid.
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From: Silicon valley
Audi C7.5 S6
Initially, the only sign I had was a minor amount of lost coolant. The simple pressure leak check on the cooling system confirmed a leak. The surge tank removal confirmed the IC core was leaking.
A glycol check for the transmission, indicated, the transmission was fine, no contamination.
A glycol check for the transmission, indicated, the transmission was fine, no contamination.
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2002 C32, 2011 VW GTI
Initially, the only sign I had was a minor amount of lost coolant. The simple pressure leak check on the cooling system confirmed a leak. The surge tank removal confirmed the IC core was leaking.
A glycol check for the transmission, indicated, the transmission was fine, no contamination.
A glycol check for the transmission, indicated, the transmission was fine, no contamination.
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From: Hong Kong
'02 C32; '02 M5; '08 328i (US)
Thanks guys, but my radiator has been replaced so it's not that. And leaving only the IC core. I had the manifold checked like a month ago and it was fine, and pressure test/visual inspection also checked out. But I still suspect some leak since it IS down by 0.5 liters now..
Maybe it's in early stage of leaking, that's why the manifolds still looks fine, but yeah, I'll keep an eye out. Thanks guys.
Maybe it's in early stage of leaking, that's why the manifolds still looks fine, but yeah, I'll keep an eye out. Thanks guys.
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From: Western Canada
2013 C63 AMG P31, 2014 GMC Sierra (6.2)
I am currently waiting for a new intercooler to come in for this very reason.
After they pulled the intake runners they looked just like the pictures someone posted on the site.........
After they pulled the intake runners they looked just like the pictures someone posted on the site.........
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From: Hong Kong
'02 C32; '02 M5; '08 328i (US)
Just wondering, *if* my IC core is leaking, besides replacing the core, what else needs to be done? Obviously cleaning up the manifolds, but to what extend the shop needs to take things apart? And what steps need to be done to ensure the residues are cleaned off? Thanks!
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2002 C32 ///AMG
Do you recall the link you were refereing too? I'd like to take a look at those pictures.
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From: Central Florida
R129, XF Sportbrake, SC400
I don't know about the C32's but sometimes on the other C's, a low level of washer fluid can trigger the low colant level warning. Top up the washer fluid and see if it makes a difference.
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From: Western Canada
2013 C63 AMG P31, 2014 GMC Sierra (6.2)
