Why is my climate sensor not working on my Mercedes?
Coincidentally (or not), this started happening the day after I did two things to my Mercedes: 1) I took apart and replaced the rubber bumper fasteners (mounts) under my air filter housing unit. 2) Replaced the front shock absorbers.
Why are the fans on my Mercedes 190 not working?
ELECTRIC FAN AND ENGINE FAN TROUBLESHOOTING –It seems that every few years, both fans stop working. Oftentimes it is the red three pole temperature switch, and the system is fairly easy to test. The idea is that when the switch is heated by the coolant to a certain temperature, the switch provides a path to ground and the fans engage.
Why is my tachometer not working on my Mercedes 190?
The system was told that the engine is not spinning, but the compressor is, and it failed the test. If you have a diesel and your tachometer is not working, take a look at the RPM sensor. It is mounted on the engine bell housing, on the same side as the oil level sensor, just a bit farther back.
How to test Mercedes-Benz 190 tempmatic ACC?
To test, select the top button (max AC) and then the button with the two boxes on it, meaning the center and side vents. The system must pass several internal tests before the compressor comes on. Recently my compressor stopped working, but I noticed that it coincided with the failure of my tachometer.
What do you need to know about Mercedes wiring diagrams?
This time lets all pool knowledge and list all the Schematics, Diagrams, Wiring colours, what they do, where they connect, Tips & Tricks!
Where is the microswitch on a Mercedes Benz?
There is a little ‘Microswitch’ which is located in the top left hand corner (see pics). This is switched by the positioning of the cam which obviously turns dependant on where the ‘Lever’ is positioned from ‘P’ down to ‘1’.
Where is the ECO start / stop button on a Mercedes Benz?
If you want to turn the Eco start/stop feature off, simply press the Eco start/stop button, which depending on the model is either located below the ignition button, or on the center console. If you want to turn it back on, just press the button again.
How can I watch videos on my Mercedes Benz?
Get to know the features and capabilities of your Mercedes-Benz. You can enter your vehicle information to view specific videos, or simply browse the collection below. Your Mercedes-Benz and your iPhone® unite to bring you a unique interface, apps and voice control. Click here to launch video in a pop-up.
Why are my shift controls leaking in my Mercedes?
You CAN do this yourself if you have the right information and equipment! High Mileage and age can raise havoc on the shifting patterns of an automatic transmission. Even if the fluid has been changed on a regular basis, they still wear out. Seals harden and leak both internally and externally. Vaccum and cable shift controls leak and fail.
What does it mean when your AC is hot all the time?
All heat, all the time, is usually a sign that there is an electrical problem. The monovalve is opened (to allow hot coolant to flow to the heater core) by the ground side of the circuit. If you are getting very hot air all the time then the monovalve is seeing a ground at all times.
How can I fix a problem with my Mercedes?
If you have a problem with your older Mercedes and are trying to figure what is causing it or how to fix it, you have come to the right place. Let Kent explain how his solutions finder works: “Just select the location of the problem you are experiencing, the chassis designation of your car and a few key words and click Search.
How does Mercedes Benz air conditioner system work?
While the pictures on this article are of Mercedes Benz cars, this guide is written to apply to all makes and models. How the A/C System Works. A/C compressor not engaging.
How does the defrost button on a Mercedes work?
The defrost button has three lines going through it, while the recirculated air button has a picture of a car with a curved line through it. Hold these buttons down for about five to 10 seconds, or until the LED lights on both buttons start flashing. Wait 45 to 60 seconds for the LED lights to stop flashing. Then turn off the car.
What should I do if my Mercedes engine stops working?
Be aware that if you reset the unit and it again stops working, you need to take the vehicle in to the dealership for repairs. Insert the key into the Mercedes ignition and turn the ignition cylinder to the “2” position.
How to troubleshoot your Mercedes medic air conditioner?
Turn the A/C ON. If you have an Economy button make sure that is off. Make sure fan is on HIGH, temperature selector is turned all the way to COLD, and that the A/C and recirculate light indicators are on. Set the temperature to cold, the lowest setting. Set the cooling fans on high on the climate control.
What should I know about my Mercedes 300D?
Good compression is paramount on a diesel engine. These cars use vacuum extensively. The vacuum lines become old and brittle with age and can cause all sorts of gremlins from door locks to engine shut off. Fortunately the vacuum system is (relatively) easy to diagnose and repair.
How much does it cost to repair a Mercedes 300D?
Plan on spending about $500 if the cruise control isn’t working correctly. Also, be aware that they require valve adjustments every 15K miles (about $150 each). Expect to spend in the $5-10K range for a good driver (not a show car), and don’t be surprised if it costs you about $1000 per year for the usual “old car nits.”
Is it bad to replace vacuum line on Mercedes 300D?
The vacuum lines become old and brittle with age and can cause all sorts of gremlins from door locks to engine shut off. Fortunately the vacuum system is (relatively) easy to diagnose and repair. Vacuum lines, elbows and T’s are easy to replace. Even if the vacuum pump is worn out, it’s not a bad repair.
Why is my Mercedes air conditioner not working?
Your Mercedes vehicle will flash a host of service lights to inform you when something might be damaged inside the car. If the air conditioner unit is not running normally or is only blowing out warm air, it may be a temporary fault. Sometimes the unit isn’t actually damaged, and resetting your climate control unit
How do you reset the AC system on a Mercedes?
Hold these buttons down for about five to 10 seconds, or until the LED lights on both buttons start flashing. Wait 45 to 60 seconds for the LED lights to stop flashing. Then turn off the car. Wait 60 seconds and then start the car engine again.
The vacuum lines become old and brittle with age and can cause all sorts of gremlins from door locks to engine shut off. Fortunately the vacuum system is (relatively) easy to diagnose and repair. Vacuum lines, elbows and T’s are easy to replace. Even if the vacuum pump is worn out, it’s not a bad repair.
Good compression is paramount on a diesel engine. These cars use vacuum extensively. The vacuum lines become old and brittle with age and can cause all sorts of gremlins from door locks to engine shut off. Fortunately the vacuum system is (relatively) easy to diagnose and repair.