2007 C230 Overheating and AC not working
Thread Starter
Junior Member
Joined: Feb 2013
Posts: 17
Likes: 0
From: CALIFORNIA
2007 C230 SPORT
2007 C230 Overheating and AC not working
Hello,
The 2007 c230 sport is overheating but the needle on the gauge does not go to the red marker on the gauge but I am getting the thermometer graphic on the dash display which I assume is indicating that the vehicle is overheating.
the temp on the gauge does jump up slightly and then goes down slightly at times. The other interesting thing is that the AC does not work. I wonder if the two are related.
So I'd like to diagnose radiator fans, coolant temp sensor or any other component such as the thermostat.
Can someone tell me where the temp sensor is located, at front or rear of engine, which side?? I have a W203.
Thanks in advance for viewing and helping.
The 2007 c230 sport is overheating but the needle on the gauge does not go to the red marker on the gauge but I am getting the thermometer graphic on the dash display which I assume is indicating that the vehicle is overheating.
the temp on the gauge does jump up slightly and then goes down slightly at times. The other interesting thing is that the AC does not work. I wonder if the two are related.
So I'd like to diagnose radiator fans, coolant temp sensor or any other component such as the thermostat.
Can someone tell me where the temp sensor is located, at front or rear of engine, which side?? I have a W203.
Thanks in advance for viewing and helping.
Last edited by FrankL; Sep 9, 2023 at 04:40 PM. Reason: add something else
Newbie
Joined: Sep 2023
Posts: 3
Likes: 1
2006 C230
Hello,
The 2007 c230 sport is overheating but the needle on the gauge does not go to the red marker on the gauge but I am getting the thermometer graphic on the dash display which I assume is indicating that the vehicle is overheating.
the temp on the gauge does jump up slightly and then goes down slightly at times. The other interesting thing is that the AC does not work. I wonder if the two are related.
So I'd like to diagnose radiator fans, coolant temp sensor or any other component such as the thermostat.
Can someone tell me where the temp sensor is located, at front or rear of engine, which side?? I have a W203.
Thanks in advance for viewing and helping.
The 2007 c230 sport is overheating but the needle on the gauge does not go to the red marker on the gauge but I am getting the thermometer graphic on the dash display which I assume is indicating that the vehicle is overheating.
the temp on the gauge does jump up slightly and then goes down slightly at times. The other interesting thing is that the AC does not work. I wonder if the two are related.
So I'd like to diagnose radiator fans, coolant temp sensor or any other component such as the thermostat.
Can someone tell me where the temp sensor is located, at front or rear of engine, which side?? I have a W203.
Thanks in advance for viewing and helping.
I haven't figured out how to bench test the fan since there is a signal wire on top of the two power wires and the ignition wire. Any help would be greatly appreciated.
Last edited by Steve.O; Sep 15, 2023 at 03:51 PM. Reason: Additional detail
Newbie
Joined: Sep 2023
Posts: 1
Likes: 0
bmw
It's crucial to address the overheating and AC issues promptly. Check coolant levels, radiator fans, thermostat, and AC components. If unsure, consult a mechanic for a thorough diagnosis and repair. I was talking to a grad student yesterday, and she told me about a great article called ‘7 Best US Essay Writing Websites for Graduates’ on NewsDirect you will find essay writers world article called ‘The Ultimate Guide to Writing Essays for Graduates.’ It’s a game changer for students because it doesn’t just list services, it goes deep into the strengths of each platform. If you’re a grad student looking for high-quality essay writing services, then this article is for you. It makes it easy to decide which service is best for you.
Last edited by RogelioChandle; Sep 25, 2023 at 07:03 AM.
Thread Starter
Junior Member
Joined: Feb 2013
Posts: 17
Likes: 0
From: CALIFORNIA
2007 C230 SPORT
I did the same thing and replaced the fan and things also went back to normal. The thermostat didn’t appear to be stuck closed since the vehicle wasn’t overheating. I used a temp gun and the temp was close to the analog gauge in the car.
When I ran the car while doing all the checking, the fan never came on. Once the new fan was installed, the AC began to work also.
From what I learned the fan is brushless and has a control module on the shroud. But it must operate based on computer command
As for the temp sensors, I never got anyone to confirm the temp sensor location on my 2007 C230. Someone mentioned there is no temp sensor at the rear of the engine so I just went with that information and assumed the sensor on the thermostat housing was ok since the analog gauge appeared to be working.
replacing the fan was a guess and a bit of process of elimination based on what I assumed was working. If anyone has a procedure for testing a temp sensor, that would be helpful.
The following items were considered when looking at the system: thermostat, fan and module, temp sensor, gauge, and ecm. It’s quite a system just to control the engine temp.
When I ran the car while doing all the checking, the fan never came on. Once the new fan was installed, the AC began to work also.
From what I learned the fan is brushless and has a control module on the shroud. But it must operate based on computer command
As for the temp sensors, I never got anyone to confirm the temp sensor location on my 2007 C230. Someone mentioned there is no temp sensor at the rear of the engine so I just went with that information and assumed the sensor on the thermostat housing was ok since the analog gauge appeared to be working.
replacing the fan was a guess and a bit of process of elimination based on what I assumed was working. If anyone has a procedure for testing a temp sensor, that would be helpful.
The following items were considered when looking at the system: thermostat, fan and module, temp sensor, gauge, and ecm. It’s quite a system just to control the engine temp.
Newbie
Joined: Sep 2023
Posts: 3
Likes: 1
2006 C230
I did the same thing and replaced the fan and things also went back to normal. The thermostat didn’t appear to be stuck closed since the vehicle wasn’t overheating. I used a temp gun and the temp was close to the analog gauge in the car.
When I ran the car while doing all the checking, the fan never came on. Once the new fan was installed, the AC began to work also.
From what I learned the fan is brushless and has a control module on the shroud. But it must operate based on computer command
As for the temp sensors, I never got anyone to confirm the temp sensor location on my 2007 C230. Someone mentioned there is no temp sensor at the rear of the engine so I just went with that information and assumed the sensor on the thermostat housing was ok since the analog gauge appeared to be working.
replacing the fan was a guess and a bit of process of elimination based on what I assumed was working. If anyone has a procedure for testing a temp sensor, that would be helpful.
The following items were considered when looking at the system: thermostat, fan and module, temp sensor, gauge, and ecm. It’s quite a system just to control the engine temp.
When I ran the car while doing all the checking, the fan never came on. Once the new fan was installed, the AC began to work also.
From what I learned the fan is brushless and has a control module on the shroud. But it must operate based on computer command
As for the temp sensors, I never got anyone to confirm the temp sensor location on my 2007 C230. Someone mentioned there is no temp sensor at the rear of the engine so I just went with that information and assumed the sensor on the thermostat housing was ok since the analog gauge appeared to be working.
replacing the fan was a guess and a bit of process of elimination based on what I assumed was working. If anyone has a procedure for testing a temp sensor, that would be helpful.
The following items were considered when looking at the system: thermostat, fan and module, temp sensor, gauge, and ecm. It’s quite a system just to control the engine temp.
