- coolant level sensor (connections cleaned) in expansion tank - The message stays even if you disconnect the sensor. The coolant tank is located in the engine bay on the right side. MBClub UK is in no way affiliated with Mercedes-Benz, DaimlerChrysler or any of their respective trademarks. Sensor, coolant level for W203 C 270 W203 C 270 CDI 2.7 (203.016) » 170 hp, from 2000 MY W203 C 270 CDI 2.7 (203.016) » 163 hp, from 2000 MY; MERCEDES-BENZ C-Class W203 C 32 W203 C 32 AMG 3.2 Kompressor (203.065) » 354 hp, from 2001 MY You must log in or register to reply here. The BIGGEST and best independent MB forum in the UK MB Club UK is A Mercedes Enthusiast club run by enthusiasts for enthusiasts Method 2: Check oil via the instrument cluster. So recently the temperatures have been going under freezing and guess what?
The sensor is located on the lower portion of the front of the tank, right below the auxiliary coolant pump. I would recommend letting the car cool for a little bit before doing as it is a tight fit in there and you don't have to work around a hot tank and hoses.Begin by removing the right side air intake duct.
Since it was a tight space as I was working on putting a new turbo seal, is it possible that I may have unplugged an electrical connection?
I was sceptical of this when my coolant light would,nt extinguish, so regardless what i was told i replaced the coolant switch, the light was still on, took the the previously given advice washer bottle switch replaced, and low and behold coolant light out. The posted views of our members are in no way the views of MBClub.co.uk or its owners.JavaScript is disabled. And it required dismantling of air duct hoses etc. We changed the coolant expansion reservoir, MB Part number A2115000049 and the error disappeared.
The coolant check level message has been in display ever since. I checked the level and it does seem a little low, im just not sure where the coolant went. Car has gone only ~7000km. I was getting a warning when starting my car, usually when it was a cold start, telling me to check my engine coolant level. If the engine oil level is above the High/Max mark, you should remove oil from the engine to avoid damage to your car.
Turn off the engine. With the warning off, loosen a water hose a let a small amount of coolant (about the volume of the expansion tank) drain out ............................. does the warning light now get triggered? The nice thing about replacing this sensor is that you do not need to drain the coolant from the tank to perform this job as the coolant does not actually make direct contact with the sensor. Wait at least 5 minutes. Hi, There are seaparate lights for the washers and coolant tank but if either level switch goes U/S it can put the others light on. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. See notes below on how to remove oil from the engine if you overfilled it. The sensor is located on the lower portion of the front of the tank, right below the auxiliary coolant pump. Simply compress it back towards the engine and slip it off the front air inlet.With the duct off you can access the coolant level sensor on the lower part of the tank better.Remove the wiring harness by pulling it straight back.Begin by removing the right side air intake duct. If the sensor is mechanic (moveable arm or similar)= Then check for a stuck sensor inside the expansion tank.The sensor sticks to the bottom of the expansion tank from outside and is connected electrically by a connector.
If you are having problems with your coolant level sensor, do not worry as it may be one of the easiest and fastest repairs you can make on your Mercedes-Benz W203. To check the oil level park the car on a level ground. As stated in my original post, I had the message 'Check Coolant Level' come and go but it never stayed permanently. Simply compress it back towards the engine (red arrow) and slip it off the front air inlet.With the duct off you can access the coolant level sensor on the lower part of the tank better (red arrow).Remove the wiring harness by pulling it straight back (red arrow).Pull the sensor from the bottom of the tank (red arrow).Applies to: C320 (1998-2004), E320 (1998-2004), S320 (1998-2005), ML320 (1998-2003), CLK320 (1998-2004), SLK320 (1998-2003) I get a check coolant warning every time I turn on the car in the morning. The Radiator fan works but I don't know if it is working the way it should when you switch on AC.
For a better experience, please enable JavaScript in your browser before proceeding. The Radiator fan works but I don't know if it is working the way it should when you switch on AC.Stick it on STAR and monitor real-time data on the coolant/engine system.