Why is my W210 heater control valve not working?
Additionally the inside of the two coils can become blocked with corrosion from the engine coolant, preventing the valves from closing. In both cases, you would get hot air blowing from one or both of the vents at the same time. In this article, we will go over the steps involved with disassembling the Duovalve and replacing it, if needed.
Why does my air conditioner keep blowing hot air?
This is essentially two valves inside a casing that, over time, can become blocked with corrosion from the engine coolant, preventing the valves from closing. In this case, you would get hot air blowing from one or both of the vents at the same time. The Duovalve can also fail when the small pintle shafts break inside the bottom housing.
Why does my car have no air in the vents?
Step 3 – A fan blower motor is controlled by either a switch in the passenger compartment or by a computer. If this fan motor is starting to fail it will cause the fan motor to run at a lower speed resulting in low air flow. To test this condition an amp meter is needed, connect the meter lead to the power wire of the fan motor.
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?
What to do if your Mercedes AC unit is not working?
However, there might not be any damage in the AC unit when it is blowing warm air or not running properly. It could be a temporary fault and a reset is likely to be enough to restore the normal function. Sometimes, the process is called a Mercedes climate control reset. The reset procedure is similar no matter whatever you call it.
Why does my Mercedes E320 AC not reset?
For example, if you want to know about Mercedes E320 AC reset, it is better to check the manual and follow the manufacturer’s recommendations. If a Mercedes air condition reset does not work, these following reasons could be causing the trouble: When the AC is releasing hot air, the possible reason could be a defect in the damper.
Why is my air conditioner not working in my car?
When the AC is releasing hot air, the possible reason could be a defect in the damper. The component is in charge of the air path that goes into the cabin. Check the onboard computer if it can verify the damper’s position. If one of the controls is ‘out of range’, the damper is surely the root of the problem.
What does the dual climate system on a Mercedes W210 mean?
Click here to order! The climate control system on the W210 Chassis Mercedes has a dual climate system. What this means is that one side of the car can be cool, while the other side blows warm air and vice-versa.
Where are the pintle valves on a Mercedes W210 heater?
What you should see are the two pintle valves inside the bottom half of the Duovalve. In our case, you can see where the shaft of the left valve has broken off (green arrow), leaving the valve cocked in place and the heater blowing hot all the time on one side of the car.
What to do if your Mercedes heater is not working?
Try slapping the carpet area below the stereo, a good hard slap on passenger side using right hand while sitting in driver seat used to get mine spinning for a couple weeks until I replaced the motor. Need to remove the wiper blade first then keep going down until you reach the motor.
How to disassemble a W210 heater control valve?
Use a pair of channel locks to loosen and slide back the hose clamp holding the water hose to the Duovalve. Once the hose clamp is off, carefully peel off the water hose and push the grommet molded into the hose out of the cowl panel.
Why is my C230 Komp heater not working?
C230 Komp blower has been off and on since last year, and only working on 5 when it did. Worked fine over summer. Now that it is cold, it stopped for the most part. Read the threads here….pulled cover off from under passenger foot well and access the blower motor and wiring. Wiggled wires and checked connections and that did the trick.
Where is the fan on a 1999 V220 Ambiente?
Click to expand… I have a 1999 V220 Ambiente with same problem, fan sometimes works and comes on over speed bumps. I have located the motor, visible behind left hand dash vent, but can’t get at it to remove. Even when working it’s not powerful so needs replacing or new brushes, just need to remove it.
Additionally the inside of the two coils can become blocked with corrosion from the engine coolant, preventing the valves from closing. In both cases, you would get hot air blowing from one or both of the vents at the same time. In this article, we will go over the steps involved with disassembling the Duovalve and replacing it, if needed.
How does the climate control work on a Mercedes W210?
The climate control system on the W210 Chassis Mercedes has a dual climate system. What this means is that one side of the car can be cool, while the other side blows warm air and vice-versa. The Duovalve is used to regulate the amount of engine coolant that flows into the heater core between both sides of the passenger compartment.
Why does my hot water heater not heat up?
When this goes bad, the coolant going to the heater core is blocked, thus not heating up the heater core = no heat. Get some hoes clamp pliers (I didn’t have one so i used some old pliers that worked with some effort) and disconnect the old Valve/coolant clamps away.
Why does my air conditioner have no heat?
The change over valve, controls how much (hot) coolant should go through the heater core. When this goes bad, the coolant going to the heater core is blocked, thus not heating up the heater core = no heat.
Why is my Mercedes-Benz C class heater not working?
If not, then you have a problem. On some early models of the W204 (early 2008 in particular) this was a big problem because the box which the blower is mounted in had no drain holes. Snow and ice buildup can freeze the motor to the point where the fan won’t turn at all. You can manually rotate the fan to get it moving temporarily.
Why is my Mercedes W211 not blowing hot air?
Heater is not blowing hot air on Mercedes W211, W219 / Problem solved! Replacing valve W211 – YouTube Heater is not blowing hot air on Mercedes W211, W219 / Problem solved! Replacing valve W211 If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations.
The climate control system on the W210 Chassis Mercedes has a dual climate system. What this means is that one side of the car can be cool, while the other side blows warm air and vice-versa. The Duovalve is used to regulate the amount of engine coolant that flows into the heater core between both sides of the passenger compartment.
Heater is not blowing hot air on Mercedes W211, W219 / Problem solved! Replacing valve W211 – YouTube Heater is not blowing hot air on Mercedes W211, W219 / Problem solved! Replacing valve W211 If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations.