Hi I know that many passat owners have problems with the heat in the car In this tutorial I will show you how I repaired the servomotor V159 from the climatronic of a passat B6 3C Cold weather came and I did not have the heat on the passenger’s side Considering that on the tester (VCDS) I had an error on the servomotor V159, in charge of the right temperature flap, I said that before changing the radiator I should try to repair this servomotor, hoping the hot air problem might disappear From the beginning I want to tell you that after all I had to change the radiator but that I will show you in a future tutorial Here are the steps to uninstall and repair the servomotro V159 from the climatronic of a PASSAT 3C from 2009 This is the servomotor, I initially said I should put a new one but when I saw the price of almost 110 euro I changed my mind and decided to open it to see what is wrong with it It is made by BOSCH labeled with DENSO it has the role of adjusting the right temperature flap the climatronic is dual we did not have the heat on the right side of the car, and on the left the air was just warm Start by unmounting the plastic on the center console in the dashboard Unscrew this torx screw, pull down plastic so that you don’t break the clamps, then you can remove the plastic easily I removed a clamp but I put it back very easily After removing the plastic we can loosen the torx bolts from the glove compartment The one marked with yellow in the picture will help us in the future Pay attention, at the top there are four screws, two on the side and two in the middle I did not see the two in the middle, I just found that I did not lower my glove compartment it was still in two screws, these are the ones On the right side we unlocked this cover because the glove compartment is held by two plastic ribs Unscrew the 3 screws and two more from the passenger leg panel that masks the climatronic There is a clamp that must be pushed with a small screwdriver so that the glove compartment can come out at the bottom This screw is unscrewed to facilitate the play of plastic components near the servomotor As I said, the problem is that on the right side I was just getting cold air On the VCDS, I had an error on the V159 servomotor After we unscrew the 3 screws from the bottom and the top 4 screws, I inserted a screwdriver in this hole, I pressed, and the glove compartment slid to the bottom All you have to do is move the plastic ribs
from the right over the obstacle in the dashboard and the glove compartment goes down to the passenger’s feet Unplug the plugs to remove the glove compartment from the car, the CD changer sockets the airbag the bulbs the rear hose is from the cold air entering the glovebox there are clamps attached to the insulating strip that need to be opened to detach the cables and on the left is a clamp that is removed from the dock to remove the glove box.After removing all the plugs thers remains “space” to get to the servomotor. To facilitate access, you should remove the air duct from the feet and the cold air hose entering the glove compartment. Remove this panel this is the pollen filter As you see, the servomotor goes crazy When the climatronic starts, the arm stops moving when the climatronic stops, the arm begins to turn left-right Unscrew the torx screw that holds the air guide tube at the passenger’s feet and this hose which currently blocks the tube removal If we remove the hose first, the tube is removed much easier I pulled the tube over the hose Remove the hose on the climatronic Unscrew this screw, which allows the left-hand movement of this module, also disconnects the white plug. The actuator is trapped in three torx screws One has very easy access, but the other two slightly harder It is possible to make a fixed wrench from the sheet of 1 – 1.2 mm cut out after the size of the screw 5.5, with which I only unscrew the screw from the bottom This helped me a lot because I was able to move the servomotor a bit, and I managed to unscrew the other screws The bottom screw is hardly accessible I first screwed it off very little and then I unloaded the top one, forcing a little in the board that masks the servomotor I had to dismantle this module to gain access to the screw at the top So I first unplugged the screw No.1, unscrewed the bolt 3 a little bit then loosened the screw No. 2. Finally, I screwed out the screw No. 3. You can drill the board in front of the screws I honestly did not want to drill the board This is the servomotor, it has a lever that acts, with the help of another lever a flap It gets out in a certain position Remove the blue plug I opened it, I prepared the sprays for cleaning Inside is the servomotor, a potentiometer potentiometer that is designed to change resistance depending on the position of the temperature flap Remove the potentiometer with a screwdriver rises to the right,
remove the cursor press it from the back until it detaches from the potentiometer It will deteriorate a little but it can be reused even a little damaged There is only the tape on which the cursor slides, it is worn at the top We initially used to clean a contact spray and isopropyl alcohol after which we used a graphite mine pencil to restore the strip on which the cursor slides I plugged it into the socket, connected the VCDS to the car and reset the servomotor twice to learn the basic setting, it looks like it works perfectly, so I saved about 110 euros and workmanship I entered the climatronic module, accessed the basic settings and started the test It looks like the servomotor makes a complete move Installing components to place is done in as reverse order What else can I say, this time when I record the sound for this tutorial I have already changed the heat exchanger, the problem of the lack of heat in the car not being generated by this motor I think the problem with the hot air in the car, even if you have the hot on the left and the right cold only is caused in about 90% by the heat exchanger.I’ll show you how to change the heat exchanger in a future tutorial I wish you good luck if you want to repair the servomotor. Thanks for watching, share & subscribe to this channel. If you want to donate link it is in description. .