Why does my mercedes make a noise when I turn it off?
The noise that you are experiencing is the “Residual Heat Pump” that is designed to circulate water to cool the engine below certain parameters, this is done via a pump with a separate module to run it so it doesn’t run your battery flat.
Why is the fan running in my Mercedes?
It also runs when the ignition is on and engine not running and continues for a controlled period after the engine is stopped, you can force it to stop by turning the ignition on and off a second time.
Why does my Mercedes W639 make a noise?
As this fan ages it becomes more a little more noisy and can sound like the cabin air fan is spinning on low RPMs. It also runs when the ignition is on and engine not running and continues for a controlled period after the engine is stopped, you can force it to stop by turning the ignition on and off a second time.
Why do I hear a ticking sound in my Mercedes Benz?
When you start your Mercedes-Benz, or even just turning the AC on, you hear a clicking sound (at times a shhh sound) from the dashboard. The sound lasts for about 20 seconds then goes away after approximately 5 minutes. Later on, however, the ticking returns and repeats its cycle.
Where is the fan in the Mercedes W639?
There is a small fan (like a computer fan) that operates under the control of the ECU that cools the large plastic fuse/ECU box under the bonnet, this obviously has a mechanical connection to the area behind the dash on the passenger side.
Why does my Mercedes E320 fan not shut off?
Mercedes-Benz E320 The fan motor wont shut off when ignition… The fan motor won’t shut… The fan motor won’t shut off when ignition is turned off Show More Show Less Ask Your Own Mercedes Question Share this conversation Answered in 2 minutes by: 10/14/2011 Mercedes Mechanic: Marty, Mercedes Technician replied 9 years ago
What happens to the fan motor when ignition is turned off?
The fan motor won’t shut off when ignition is turned off The fan motor won’t shut off when ignition is turned off – Answered by a verified Mercedes Mechanic We use cookies to give you the best possible experience on our website.
How can I stop the Mercedes blower motor?
Otherwise you will need to remove the panel under the passenger side dash and access the regulator and disconnect it. Unfortunately there are no fuses that can be removed to stop the blower motor. Marty, Mercedes Technician Category: Mercedes Satisfied Customers:57,126 Experience: Bosch Certified Master Tech. Over 35 years experience. Verified
Why do I hear a noise when I start my Mercedes?
The electric water pump in Mercedes vehicles, as far as I know, is used to pressurize the cooling system from the reservoir bottle used these days. It’s one of the noises you hear when first inserting your key to start. Welcome to the GLA forum Red. That’s one of the best theories or explanations we’ve heard.