The question “how to remove the Renault Megane 2 heater fan” will be answered by this photo report for car owners.
, you can get to the heater fan , to the right of the pedals. Since the place is not lit, you will need a flashlight.
There are many reasons for carrying out such a procedure. In this case, the assembly was removed due to the appearance of a strong hum , rumble when the fan was operating due to the fact that leaves got into the impeller in an unknown way, which were subsequently removed.
Replacing the stove fan
If it happens that the Renault Megane 2 stove stops working, troubleshooting did not lead to the desired result, you will have to replace it. Let's figure out how to proceed to remove the old fan:
- Open the panel, start disconnecting the pedal.
(Link to photo source)
- Disconnect the brake sensors, then the gas pedal.
- To release the brake pedal lock, to do this you need to remove the locking ring, pull the lock and push out the rod. Then squeeze the end and turn it in your direction.
- Unscrew four nuts, one is hidden under the seal.
- After this, the pedal assembly is removed.
- The next step is to unscrew the high-speed control module of the Megan 2 fan, remove it, and move the wires to the side.
- It is necessary to disconnect the connector: press the latch, tilt the connector to the right and remove it upwards.
- Press the latch and turn the motor counterclockwise.
- The fan must be pulled out and turned forward with the impeller - this is the only difficult part of replacement.
- You need to pull towards yourself so that the brake rod is inside the impeller. This removes the Megane II fan.
After the completed manipulations, the new part is installed in the reverse order with careful movements, trying not to damage the impeller.
Important points
When replacing a stove fan with a Renault Megane, you need to remember the nuances that, at first glance, seem insignificant, but are actually very important. Here they are:
- as stated above, repairs begin with removing the side trim. But it is not always possible to remove it without problems, even if the central latch has successfully opened. After all, the pad sits in its niche so tightly that you simply cannot catch on it. There is only one way out: use a knife with a thin blade. The knife is carefully inserted into the slot and the cover is raised. But here you need to be careful not to break the fragile latches along the edges of the lining;
- pulling out the axle on the brake rod is not an easy task: it fits very tightly, and, moreover, in some cases it also rusts, literally welding to the rod. If this is exactly what happened, WD40 liquid will help. You need to generously lubricate the rust with this composition and wait 15 minutes. Even the rustiest axle can be removed without problems;
The best option for removing rusted parts is WD40 liquid. - When going to the store for a new furnace fan for your Renault Megane, remember: it cannot be cheap. Its price starts from 4,000 rubles if purchased from official dealers. If somewhere the price is lower, there is a high probability that it is a Chinese fake. For this reason, you should buy spare parts only in Renault branded stores.
Even a novice car enthusiast can replace a faulty fan on a Renault Megane of the second or third model. Certain difficulties arise only when removing the unscrewed electric motor. But if you remove it as shown in the instructions, the impeller and motor will remain intact.
Motor items
Let's look at which heater fan part numbers can be used for Renault:
RENAULT 7701056965 – original for Renault Megane 2.
Original RENAULT 7701056965 (Link to photo source)
For those who want to save money, analogues of fans are available on the market, for example:
- STELLOX 29-99025-SX – the motor supports a voltage of 12 V;
- PATRON PFN079 – this specimen weighs 1.22 kg;
- ERA 664025 – power 220 W, voltage 12 V;
- NRF 34126 – fan has 47 blades, rotates clockwise;
- NISSENS 87043 – two poles, power 173 W
The listed fans that can be used as a replacement for Renault Megane are named in ascending order of cost from 2 thousand rubles. up to 5 thousand
What are the signs of a breakdown?
The fan is freed. We remove the motor with the impeller from the plastic casing; to do this, you need to unscrew 1 screw at the end. But its brushes are worn out. The size of the brush is 8x9x20 mm. I cleaned their seats and cleaned the collector. Then I knocked down the impeller, although damaging it a little - I had to tinker with it later.
I opened the front cover, took out the armature, cleaned and lubricated the shaft bushings. I haven’t taken any photographs, but the repair of heater motors is written very well here. The first one in the link is most similar to ours. Well, that's all.
Replacing the motor
Now let's look deeper. There we see the stove motor we need. Now we disconnect another connector. After you have opened the heater, you need to press the tab on the latch on top and turn it counterclockwise. Now you need to remove the connectors with two wires, the thicker ones.
Repair
It's worth trying to repair the stove fan. Replacing the brushes may be enough to once again enjoy cool air in the Megan 2's cabin.
It is necessary to remove the wiring block on the motor.
(Link to photo source)
Using a thin screwdriver, pry up the three latches and release the heater motor.
The brushes cannot be removed because the ends of the wires are soldered to the stator contacts. It is likely that the brushes have become worn down and have an uneven cut.
There is a need to clean contacts and intercontact gaps from dust and dirt. You can find copper-graphite brushes in hardware stores.
Having trimmed and given the required shape, solder it to the Renault Megane 2 fan. Then install the fan in place.
https://www.youtube.com/watch?v=yTpzPHOSb0U
Types of breakdowns and ways to fix them
- The fan is not working. The first thing you need to do is check the integrity of the contacts and wiring, as well as fuses and sensors. If all connections are in order and the fuses are not blown, then the reason that it does not turn on is the failure of the motor.
- Hot air does not enter the cabin. There may be several reasons why the stove does not heat, or heats very poorly. First of all, you should check the serviceability of the air damper, air ducts, and change the cabin filter. If these measures do not help, it is possible that there is no coolant flowing into the radiator (the inlet pipe is cold) or the radiator is clogged.
- The heater whistles. If you hear howling and grinding noises coming from the stove when the stove is on, this means that the fan needs to be repaired. Most likely, the bearings in it are worn out or the motor brushes are worn out.
- Other malfunctions. One of the most common breakdowns is that the fan only works at one speed and does not heat at the others. In this case, you should look for burnt fan resistance (sensors) using a multimeter. A burnt sensor that does not turn on should be replaced with a new one. If you don’t want to solder it, you can completely change the entire resistance block with sensors. The stove may not heat due to a broken switch in the cabin. Sometimes air dampers fail, blocking the air flow.
Removing and washing the heater radiator
Before replacing the radiator, you should try flushing it. The removal process may depend on the type of Megane 2 radiator. In the case of model 7701208323 , a complete disassembly of the panel will be required, with model N80506052FI everything is much simpler.
Heater radiator 7701208323 (Link to photo source)
Before removing the radiator, it is necessary to drain the antifreeze. At this time, remove the casing, disconnect the piece of iron fastened with 4 bolts and 1 self-tapping screw. This opened up access to the heater radiator and damper servomotor. Next you need to remove 2 latches, pull out the tubes, and take out the radiator. When collecting, use the reverse order.
You will see how the tubes fit to the radiator. (Link to photo source)
Removed trim
Washing can be done with strong water pressure towards the supply side. For better cleaning of the Renault Megane 2 radiator, you can fill it with a special product, for example, “Sanox”, then rinse it again with water from Karcher. All that remains is to install the removed elements in their places.
How to remove the stove on Renault Megane
- How to remove the stove on Renault Megane
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- How to remove the heater from an Opel Astra
The role of the stove can hardly be overestimated; in winter it is the most important element of all car systems.
On Renault Megane, as on most modern cars, the stove is made in the form of a block installed in the middle of the dashboard. The unit is equipped with an electric fan that rotates at different speeds. There is also a radiator, which is included in the cooling system through a special tap connected by means of a rod to the switch lever. Sometimes there is an electric motor on the tap that easily opens and closes the valve. Removing the stove is necessary in several cases. The most common breakdown is the appearance of a leak in the radiator. The second most popular problem is fan failure. There is no point in repairing it, you just need to replace it with a new one. The third reason, less popular, is the breakdown of the partitions that control the air flow. On Renault Megane, air can be directed to the legs of the driver and passenger, to the torso, and to the face. You can also turn on the air flow on the windshield to defrost it faster in winter.
Replacing the resistor
Problems with the operation of the Renault Megane 2 fan are not always associated with the fan itself. The malfunction may be related to the Megan 2 heater resistor.
The stores offer analogues of the original from Valeo, for example - NTY ERDCT001 .
Resistor NTY ERDCT001 (Link to photo source)
They look the same, the new resistor worked great. You should try cleaning the old resistor with alcohol and resoldering the soldering joints. It can still serve as Megan 2.
Old and new resistors
Diagnostic scheme
The movement of air through the heating system is no different from any other. Outside air is supplied through the radiator. It then passes through a supercharger, or more simply put, an electric fan and is then distributed throughout the cabin through a network of hoses and tubes.
Normal operation of the motor is accompanied by a characteristic noise. If it is missing, then the fuse in the interior part is to blame. Check its functionality. It's easy to get to - just find it on the left side of the front panel. It is necessary to check not only the integrity of it itself, but also the electrical wiring around it. After all, it is responsible for the operation of the fan in different modes.
If the fuse and resistors are intact, it's time to move on to the next step. Power the system directly from the battery and turn on the stove. It works - look further for the problem. If it doesn't work, it's time to replace it. By the way, to get to the contacts of the electric fan, you need to remove the glove compartment. The plug is disconnected, and the battery itself is connected to the black and blue network wire. And the other contact is connected to the negative terminal. A working fan will start working as before.
If all else fails, the unit is removed for routine maintenance and replacement as necessary. The algorithm of actions is as follows:
