Is the cooling fan running at full speed on my Mercedes?
Is your cooling fan running at full speed constantly? This is a prevalent fault on Mercedes-Benz W204, W207, and W212 models. Typically, this is a “no code fault,” meaning that the check engine light isn’t illuminated and there are no codes stored in the ECU.
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.
Why is MY BMW C200 fan not working?
The temperature sensor is situated under the black plastic cover with a mercedes logo in front of the engine. incorrect coolant sensor reading will cause excessive fuel consumption, better to sort it out quickly. ’98 W202 C230K/BMW E46 330i !! So you’re having problems with your fan and a/c or one of the two? Some more specific info please.
What causes the engine cooling fan to stop?
When I turn the ignition on, the cooling fan runs at full speed. If I turn the interior fan switch on, the engine cooling fan slows down in speed and if it is on full blast (the interior fan) on speed 6, the engine cooling fan would stop.
Why is my Mercedes radiator cooling fan not working?
This feature is not available right now. Please try again later. This is a very common problem with the Mercedes radiator cooling fan running constantly on high speed. The problem in most cases is a bad ecm so in order to fix it the ecm will have to be replaced and programmed to work with your vehicle. Check the mass airflow sensor first.
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.
Why does my Mercedes air conditioner keep blowing hot air?
In many models, the AC keeps blowing hot air even after recharging the coolant. It is a frustrating problem, especially during the summer, when it is almost impossible to drive a car without the AC on. A Mercedes air conditioning reset is a possible solution. Do you know how to do it? Is there any other way to fix the glitch?
Why does my Mercedes C class heater make a squeaky noise?
Another common issue with several makes and models is a squeaky fan when the HVAC system is operating, usually in colder temperatures. Lubricating the bearing in the blower motor will make this noise go away, as will replacing the assembly.
What kind of can network does Mercedes Benz use?
Mercedes-Benz uses several CAN networks. Depending on model and year the following may be used. CAN C – Engine CAN (also known as chassis CAN) Fast communication speeds 125 kbps or 500 kbps CAN B – Interior CAN (also known as body CAN)
What are the symptoms of a bad cooling fan relay?
1. Engine running hot One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly.
Why is my Mercedes radiator fan running on high speed?
Please try again later. This is a very common problem with the Mercedes radiator cooling fan running constantly on high speed. The problem in most cases is a bad ecm so in order to fix it the ecm will have to be replaced and programmed to work with your vehicle. Check the mass airflow sensor first.
What causes a Mercedes SL Class R129 to over heat?
A stuck close thermostat will create over heating and if it is stuck open the engine will run too cool. If your overheating and one coolant pipe is hot and the other is cold you may have a bad coolant pump. A clogged radiator can cause overheating and a broken hose can leave you stranded.
When did the Mercedes Benz 500SL come out?
For the U.S. market, the R129 was sold with two different DOHC inline-sixes, two different V-8s, and a V-12. Each model had its charms, but our favorite was the 500SL (a.k.a. the SL500 after Mercedes switched its naming scheme in 1994) with the M119 V-8. Sold between 1990 and 1998, this DOHC 5.0-liter was ultrahigh tech for its day.
Why does my Mercedes SL Class make a clicking noise?
Uneven tire wear and unusual handling in turns can be caused by worn suspension links. Check your rear rearward upper link. A light clicking noise from your rear suspension over bumps can be the result of worn sway bar links. Is your rear ride height lower than normal or do you want to install lowering springs?