Low Coolant Level
Thread Starter
Newbie
Joined: Nov 2020
Posts: 2
Likes: 2
From: Miami Florida
2004 Mercedes S430
Low Coolant Level
I have a almost brand new 2004 S430. I purchased off a retired doctor who lives next door to me in Miami. They guy owned the car since 2004 and he has sold it to me because he is to old to drive anymore. The car is flawless. You can tell it was kept in the garage its entire life and it even got new air-matic system installed in 2017. The Leather has no cracks, no stains, no scratches, headlights are brand new. Today I started the car and the coolant level came on. The reservoir tank was about 1/2 full. I see no leaks in my garage on the floor. It was 57 degrees today not sure if the cold has anything to do with it or not. Any help is greatly appreciated. I toped off the coolant. No malfunctions on the car, no check engine light. Spark plugs were changed in 2019..... I'm baffled. Car has 125,000 miles.
Last edited by Crunchy Kyle; Nov 3, 2020 at 07:53 AM.
Out Of Control!!
Joined: Sep 2018
Posts: 14,710
Likes: 4,601
From: unbegrenzt
2017 GLE350 4MATIC
Welcome! Please post a photo of the S.
If the car was not driven much, evaporation be playing a role. How are your DIY skills? Spend some time (hours, over the course of few days), scouring the vehicle for leaks.
Start with the obvious areas near the reservoir(s), water pump, hoses and radiator. Do the inspection with engine off/cold and with engine running/hot. Look under the car for leaks, or evidence of leaks.
Does steam come out the tailpipe?
Open the oil fill cap, is there anything that looks like chocolate milk?
Do you smell coolant anywhere inside or outside the vehicle when the engine is running?
If the car was not driven much, evaporation be playing a role. How are your DIY skills? Spend some time (hours, over the course of few days), scouring the vehicle for leaks.
Start with the obvious areas near the reservoir(s), water pump, hoses and radiator. Do the inspection with engine off/cold and with engine running/hot. Look under the car for leaks, or evidence of leaks.
Does steam come out the tailpipe?
Open the oil fill cap, is there anything that looks like chocolate milk?
Do you smell coolant anywhere inside or outside the vehicle when the engine is running?
MBWorld Fanatic!
Joined: Jan 2008
Posts: 6,151
Likes: 533
Mercedes
The coolant warning message will come in if the fan controller malfunctions , even if you have plenty of coolant and the fan controller is a common problem
watch your temperature gauge to see if it gets near 100 and starts bouncing around that’s when the coolant warning will come on
It could also be that the coolant level was just a bit low . Now that you’ve filled it just be careful to check the level and see if the warning comes on again
watch your temperature gauge to see if it gets near 100 and starts bouncing around that’s when the coolant warning will come on
It could also be that the coolant level was just a bit low . Now that you’ve filled it just be careful to check the level and see if the warning comes on again
