Porsche Electric Window Switch Repair

17 Апр 2014 | Author: | Комментарии к записи Porsche Electric Window Switch Repair отключены
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Porsche Electric Window Repair

By Bill Noble ) Copyright 2006.

This is copyright W Noble, June Permission is hereby granted to and print this article for non-commercial use only. For permission to in quantity, or to use for commercial purposes, contact the author at william_b_noble@IEEE.org .

I know about you, but one I find very annoying is to a cheap part fail on an car. It’s even when the failure is due to a design and it happens over and over. is the case with the window used on the 993 Porsche (and also on the 964 because the part begins 964).

What is that a plastic pin that is of the switch knob shears the switch jams and if you don’t it, you can damage or destroy the window motor.

A “normal” person probably just replace the but then you will just the same failure happen My approach produces a permanent and doesn’t require much than it takes to go to the dealer and buy the

Removing the Switch

You do not have to the door panel to remove the switch, at least not on a 993. To the switch, pry it away from the panel with a screwdriver and pull it out, then the plug from the back of the and it’s out. Be sure you pry the plastic flange of the switch and the ring that is part of the panel, don’t try to remove the ring, it’s there for and should not be removed.

Disassembling the

To disassemble the switch, use a small or 3/16) screw driver and pry the upward – insert the screwdriver in the middle of the long side of the and pry to disengage the locking tangs are on either side of the switch tangs total, two on each side).

Once the flange is place the switch pins on your work surface and the flange off and put it aside. Then the switch knob upward and put it

Notice the arrangement of the two brass that are the actual switch – you may need to reposition them you go to put it back together, so pay attention. the two white nylon plungers and two springs from the switch and put them aside (see You will be working on the switch itself.

You may be able to find the broken pin – if you can, put it aside, you don’t it to end up inside the switch.

Repairing the Knob

Now we can have some To repair the broken switch you will need a #4 machine with a cylindrical head “pan head”), a #50 drill, and a You will also need a drill and a #4 nut.

The first is to drill a hole in the exact of where the pin goes using the #50 I used a milling machine to do you cannot do it accurately with a drill or a drill press, the will walk around and you not get the hole in the right place. If you do a milling machine, just grab the pin on the other side of the in the vise and align and drill.

If you don’t have a milling wrap some tape the shank of the #50 drill and twist it by – you have a lot of control that and the plastic is very soft, so you be twisting the drill for more a minute or two anyway.


Once you the hole, you need to thread it – I to have a suitable tap, but you need one, just screw the #40 screw into the then take it back You now have a threaded hole.

The step is to machine the screw to the same diameter as the larger of the remaining pin (on my switches, the pins round) – I measured 0.112 You will need a pair of or a micrometer to do this correctly, you can “eyeball it” – the size is very to the major diameter of the #4 screw.

the screw into the #4 nut and hold the nut in the of your hand drill I used a metal lathe, do it way if you have a metal lathe), and the screw head while the is running until the diameter is the value (0.112).

Next, with the drill running, file the top of the head so the head protrudes above the nut by the amount as the pin extends above the of the switch knob (this is not terribly critical, just get it

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Now, remove the screw the nut and thread it into the hole in the knob. See how much of the screw into the hole that you the spring out of – you need to shorten the so that it just barely into the hole – I used a grinder, and held the screw a pair of needle nose – you can also do this with a file.

When the screw is the length, put a tiny drop of red on the threads and thread it into the It should look like the

Reassembling the Switch

Now you need to put the back together again. the two springs into the two holes came out of, followed by the plungers. Try to the grease from getting all everything.

Place the switch body down” (maybe it’s that way because you didn’t with it after taking the out? Nah, not a chance), and the two brass contact assemblies Then place the switch into the switch (quickly so the don’t fall out) and it down so the pins seat in the cutouts in the side of the switch

Then (with the third ) place the flange assembly the switch knob, squeeze the steel retaining clips the switch body and press the down into place have to press pretty – you will hear a “click” the tangs snap into on each side.

Once the is reinstalled, check the spring retaining clips to make they are sitting in the cutouts for them in the flange – if not, use a of needle nosed pliers to them into place.

the Job

Well, it’s obvious, Just go out to the car, plug the into the socket and. Don’t push it into yet – test it first – turn on and run the window up and down.

If all is well, then push it place and declare victory.

ask yourself – if the original window on a 1959 Cadillac have not in almost 50 years, why should the on a modern car fail in 5? What is it we have forgotten. And then, pat on the back for a job well done.

Noble Electric Cars
Noble Electric Cars
Noble Electric Cars
Noble Electric Cars
Noble Electric Cars
Noble Electric Cars
Noble Electric Cars

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