The advantage of an electric window regulator is enormous in comparison with manual systems. However, it has the disadvantage of being much more restrictive in terms of repairs. Also, it is not necessarily easy to identify precisely the source of the failure. Here we will find out how to change the electric window regulator of a smart forfour . But before seeing the procedure to follow, you must be certain of knowing where the breakdown came from. Indeed, it is sometimes unnecessary to change the entire window regulator, a simple small repair will sometimes suffice. Whether it concerns an electrical short circuit, or simply a lack of lubrication. Now that you are sure of the origin of the concern, let us return to our subject.change-window-regulator-smart-forfour

How to replace a smart forfour window regulator

Replacing a window regulator is rather time-consuming. Depending on your experience in the field, count approximately two o'clock to make sure you have the time you need. Whether it is on a smart forfour or on another car, this manipulation is for experienced DIY enthusiasts. So let's see what to do, step by step. We advise you to take photos at several stages in order to help you reassemble the new window regulator.

Removing a window regulator on a smart forfour

  • Remove all of the door trim. From the mirror cover to the handle. This should be done very gently with a flat screwdriver. You must ensure that you have access to the window regulator at all points without being obstructed. This step is quite long to perform.
  • Remove the window regulator seals from your smart forfour. Again, it's wiser to do it delicately.
  • Now that you have access to the window regulator, disconnect the connectors. You must then remove the motor from the window regulator when it is blocked.
  • Take out all the fasteners that hold the glass, then remove it. It is sometimes advisable to place the window halfway up to be able to carry out this operation. Naturally, great care must be taken when handling the glass. It is best to place it on a sufficiently thick sheet.
  • Remove the window regulator entirely. It is wiser to remember its location. You can take a picture of it if it helps you to install the new window regulator. The window regulator is sometimes held in place by screws or rivets, so you will need to remove them.

Installing an electric window regulator on a smart forfour

  • Fit the new window regulator. Make sure that its position is similar to the previous window regulator. You will probably have to use the fixings you have removed.
  • Reposition the glass just as you took it out. It will sometimes be necessary to move it a little so that it fits correctly in its guide.
  • Connect the connectors.
  • Replace the seals that you have carefully removed.
  • Replace all of the door trim.

That's it, you now have a new and functional window regulator . So you have to switch on and test it.