C32 AMG, C55 AMG (W203) 2001 - 2007

Check coolant warning? Can't go bad that quickly, can it??

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Old Sep 9, 2009 | 03:38 AM
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Koru_Kinshi's Avatar
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2018 E63S AMG, 2003 SLK 230 Sport, 2004 SL 600, 2006 SLK 55 AMG, 1998 E320 Wagon
Check coolant warning? Can't go bad that quickly, can it??

So, I got a coolant warning light on Lenneth. What doesn't make sense though, is that the radiator and the tranny were replaced about 9 months ago. There's no hiccuping in the throttle or in the shifting either. The car definitely doesn't go into limp mode.

I checked the fluid in the reservoir, and everything seems to check out. Could it be something as simple as a faulty sensor? The car has had *no* change in driveability, smoothness of acceleration or shifting.
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Old Sep 9, 2009 | 05:04 AM
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03 g35 coupe...........02 c32 Sold
check your washer fluid. if your washer fluid is low..it'll give off the same warning.
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Old Sep 9, 2009 | 06:31 PM
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Interesting. Unusual, but interesting. Thanks for the notice.
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Old Sep 9, 2009 | 07:31 PM
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C32 AMG
Could be this....

https://mbworld.org/forums/c32-amg-c...indicator.html
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Old Sep 9, 2009 | 08:28 PM
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Originally Posted by Koru_Kinshi
So, I got a coolant warning light on Lenneth. What doesn't make sense though, is that the radiator and the tranny were replaced about 9 months ago. There's no hiccuping in the throttle or in the shifting either. The car definitely doesn't go into limp mode.

I checked the fluid in the reservoir, and everything seems to check out. Could it be something as simple as a faulty sensor? The car has had *no* change in driveability, smoothness of acceleration or shifting.
It seems that most people's "low coolant" issues, if they're indeed low coolant, are a leaking intercooler - not anything to do with the radiator or tranny. Might want to pull one of your surge tanks and check for the telltale baked-on residue, assuming adding washer fluid doesn't solve your problem. Best of luck.
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