Low coolant/windhsield indicator.
Thread Starter
Super Member
Joined: Apr 2007
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From: South FLA
C32 AMG
Low coolant/windhsield indicator.
Guys I am getting 2 malfunction notifications - low coolant and low windshield washer fluid. I topped them both off several days ago but continue to get the notifications. I have checked them both and to the eye they are both definitely full. What gives? Do they have a part in common. Is it reasonable to think that they both have low level sensors that went bad at the same time?
And is this a DIY?
Thanks.
And is this a DIY?
Thanks.
MBWorld Fanatic!
Joined: Jul 2003
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From: Western Canada
2013 C63 AMG P31, 2014 GMC Sierra (6.2)
When my windshield washer fluid was low on my C32 it would always cause a low-coolant cel also--even though the coolant was fine. I don't know what exactly the relationship was or if that was just an MB design/electronic glitch. I would naturally check my coolant and the level was always fine. I had no problems with low coolant until my intercooler core cracked and it started leaking into the intake runners but that's another story. If both are full it sounds like something may have to be reset or the sensor might be bad...
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Joined: Mar 2007
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From: Miami, FL
1991 Toyota MR2, 2002 C32 AMG
Good news Bold #2
I've experienced both. This is my 3rd supercharger and intercooler. Check the sensor first then retrace all of your hoses and make sure there isn't a leak or a punctured hose. Afterwards, try to run the car hard then pull over and smell for any coolant burns (I assure you the smell is very strong). I wish you the best of luck!
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From: nj
a car that can't do the throttle reset.
Question for you guys. I have had indicators. Windshield fluid was definitely low, and the coolant was a tad as well. Filled both to spec, lights are off. I am concerned that the engine coolant indicator/ actually being a bit low is a precursor to something else.
Should my only concern be about the coolant running into the intake runners? Or are there other concerns? And removing intake runners, is that an involved process or is it relatively easy? I searched and got the pictures and what to look for from it, so thanks for that.
My extended runs out real soon, and the dealer is saying everything is ok so I am big time concerned here. Any help is greatly appreciated.
Thanks. Oh, 04 c32. Original owner, no such issues in the past. New intercooler pump installed about 10k ago, I'm at about 39k now.
Should my only concern be about the coolant running into the intake runners? Or are there other concerns? And removing intake runners, is that an involved process or is it relatively easy? I searched and got the pictures and what to look for from it, so thanks for that.
My extended runs out real soon, and the dealer is saying everything is ok so I am big time concerned here. Any help is greatly appreciated.
Thanks. Oh, 04 c32. Original owner, no such issues in the past. New intercooler pump installed about 10k ago, I'm at about 39k now.
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Joined: Dec 2007
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From: The Windy City
'02 C32, '10 135i M-Sport, '10 E63, '17 GLE63S
I've had the same issue with my '02, before and after filters/plugs/wires/Ford Lightning IC pump, and IIRC, the dealer showed me a mini-TSB about this. It was one of those "common symptom" reports, not a "If you see this, fix it" TSBs. They told me to not worry about it.
Second dealer, second opinion - same thing, just to top off the fluids when either light comes on, natch.
Second dealer, second opinion - same thing, just to top off the fluids when either light comes on, natch.
Out Of Control!!
Joined: Nov 2001
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From: Westwood, NJ
2004 Civic Si. FWD for the Win!
The two sensors are wired together (which is why they both come on); I just got new sensors installed at my local dealership for a little over $500. According to my dealership, there is a TSB that if you replace one, you might as well replace the other, as there is some commonality.
Mine kept coming on daily, which sounds like the OP's situation, not any of the other ones mentioned. If you don't replace the sensors, I'm not sure how topping off something that's already topped off fixes anything.
Mine kept coming on daily, which sounds like the OP's situation, not any of the other ones mentioned. If you don't replace the sensors, I'm not sure how topping off something that's already topped off fixes anything.
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MBWorld Fanatic!
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From: OC
C32
For that much money I would have cut the sensors off and twisted the wires together and just monitored the levels every 6 months like we used to do in the old days.
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Out Of Control!!
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From: Westwood, NJ
2004 Civic Si. FWD for the Win!
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From: nj
a car that can't do the throttle reset.
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From: Westwood, NJ
2004 Civic Si. FWD for the Win!
Thread Starter
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Joined: Apr 2007
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From: South FLA
C32 AMG
I started another thread with the diagnosis. It was the front SAM. I replaced it and the problem went away. Note: I was getting the low level light on even after I topped them off. The indicator lights would not go away. Hope it helps.
https://mbworld.org/forums/c32-amg-c...acing-sam.html
https://mbworld.org/forums/c32-amg-c...acing-sam.html
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From: In a box
W211 E55
We have seen coolant entering the combustion chamber from leaky charge cooler, as well as trans contamination from radiator issues.
Good luck.
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From: nj
a car that can't do the throttle reset.
The cooling system is sealed - if the level continues to drop, and there are no leaks on the ground, take your car to the dealer.
We have seen coolant entering the combustion chamber from leaky charge cooler, as well as trans contamination from radiator issues.
Good luck.
We have seen coolant entering the combustion chamber from leaky charge cooler, as well as trans contamination from radiator issues.
Good luck.
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Mercedes AMG
Guys I am getting 2 malfunction notifications - low coolant and low windshield washer fluid. I topped them both off several days ago but continue to get the notifications. I have checked them both and to the eye they are both definitely full. What gives? Do they have a part in common. Is it reasonable to think that they both have low level sensors that went bad at the same time?
And is this a DIY?
Thanks.
And is this a DIY?
Thanks.
