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Inleiding

Follow along with me as I replace the left-front window regulator on my old Mercedes sedan

Video overzicht

  1. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Establishing shot: stap 1, afbeelding 1 van 2 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Establishing shot: stap 1, afbeelding 2 van 2
    • Today's patient, the 1976 230.6, this guide will apply to any W114 or W115 from 1973 onwards (facelift)

  2. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Latch surround: stap 2, afbeelding 1 van 2 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Latch surround: stap 2, afbeelding 2 van 2
    • Remove the two phillips #2 screws

  3. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Door opening lever surround trim: stap 3, afbeelding 1 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Door opening lever surround trim: stap 3, afbeelding 2 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Door opening lever surround trim: stap 3, afbeelding 3 van 3
    • Pry out the black plastic cup behind the door lever, using your pick or flat-head screwdriver

    • Then remove the single phillips #2 bolt, taking care to retain the lockwasher

  4. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Door pull-closed handle: stap 4, afbeelding 1 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Door pull-closed handle: stap 4, afbeelding 2 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Door pull-closed handle: stap 4, afbeelding 3 van 3
    • There are a total of three phillips #3 bolts holding the handle to the door, two at the bottom, and a single one at the top

    • Your phillips #2 screwdriver will work fine here, but you could use a #3 if you want

    • For the top bolt there is a chrome trim covering it. You'll need to pry back gently - using a pick or small screwdriver so as to leave it undamaged

  5. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Checkpoint reached!: stap 5, afbeelding 1 van 2 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Checkpoint reached!: stap 5, afbeelding 2 van 2
    • You've removed the two surrounds, and the door handle

    • There are two metal garnishes above each lower-leg of the door handle, I like to arrange them so I know where they went - for later reassembly

  6. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Window winder handle: stap 6, afbeelding 1 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Window winder handle: stap 6, afbeelding 2 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Window winder handle: stap 6, afbeelding 3 van 3
    • Looking down almost behind the window winder handle, you can see the trim panel has a bent-metal clip, the trim also acts as the locking-clip to hold the handle on

    • First push the trim panel outwards toward yourself

    • Then it slides away from the hub, towards the knob which you hold to rotate the handle

  7. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Door interior trim panel: stap 7, afbeelding 1 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Door interior trim panel: stap 7, afbeelding 2 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Door interior trim panel: stap 7, afbeelding 3 van 3
    • The interior door trim panel is held in place by a series of push-pins around the edge of the panel, you can pry them out using a plastic trim tool, or like I did here with a small prybar and rag

    • To avoid damaging the trim or the door, try to get the pry tool as close as possible to each clip then gently pry until it pops out

    • The trim panel separates below the top portion, so the lock-knob and window seal can remain in-place and undisturbed

    • Remember the trim panel is very-fragile and made of particle-wood, so handle it gently and place it out of harms way while you're working on the door

  8. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Moisture or vapour barrier: stap 8, afbeelding 1 van 2 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Moisture or vapour barrier: stap 8, afbeelding 2 van 2
    • Peel back the vapour/moisture barrier plastic, mine was removed before, so the original glue was gone, I had some spots of double-sided tape holding it in

    • I just fed it through the partially-open window to hold it back, but if it's windy it might be annoying

    • We're trying to gain access to the door interior

  9. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Nasty parts suprise: stap 9, afbeelding 1 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Nasty parts suprise: stap 9, afbeelding 2 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Nasty parts suprise: stap 9, afbeelding 3 van 3
    • My new part (1157251102) looked so full of promise with it's blue genuine parts label, and it's shiny metal it's manufacture date stamped 10/1987

    • However the installation was about to take a turn for the worse, I didn't realise at first, naively thinking a genuine part would just bolt-on

    • It turns out my new part didn't have threads tapped in the four bolt holes!

    • Can you believe it!?

    • So with a bit of cursing, I dragged out my tap and die set

    • If you get lucky you won't need to tap the holes on your replacement regulator

  10. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Regulator arm to window bottom track: stap 10, afbeelding 1 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Regulator arm to window bottom track: stap 10, afbeelding 2 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Regulator arm to window bottom track: stap 10, afbeelding 3 van 3
    • The arm that attaches to the bottom of the window uses a pin with clip and special washer

    • It's a bit fiddly since you can't see it easily, mostly you'll be working by feel, the clip slides into a groove machined into the tip of the pin

    • There is a rectangular plastic bushing that slides in the window-bottom track, it fits over the pin first

    • Then the pin and bushing go through the track

    • Then there is a plastic slightly-conical flat washer with a metal star-shaped washer that fits over that

    • Then at the very tip of the pin - facing into the door, there is a spring-steel clip

    • I used a pick and a flathead screwdriver and a pair of needlenose pliers and a bit of cursing to get it out and back in

    • NOTE: the window drops after you pull out the pin, since nothing is holding it up - I put a small prybar in place to hold it up, but you could also use a piece of wood or whatever

  11. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Regulator to door bolts: stap 11, afbeelding 1 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Regulator to door bolts: stap 11, afbeelding 2 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Regulator to door bolts: stap 11, afbeelding 3 van 3
    • There are four bolts (circled in blue) holding the regulator to the door, they are all 10mm head bolts, but the top two are longer

    • I used a 10mm deep socket on a 1/4 inch ratchet, but any 10mm wrench, spanner, or socket should work

    • in the second picture you can see the gear-quadrant of my old regulator hanging down, it's supposed to be up engaged in the winder gear teeth

    • It was at this point that I realised I could not get the old regulator past the window vertical track...

    • Notice I'm using a short prybar to prop up the window now (since otherwise it drops down) you could use a piece of wood or some other tool as well

  12. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Front vertical window track: stap 12, afbeelding 1 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Front vertical window track: stap 12, afbeelding 2 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Front vertical window track: stap 12, afbeelding 3 van 3
    • Since you can't get the regulator out past the window track, it has to be detached temporarily

    • It's held on by two 10mm bolts, which have fancy dimpled flat washers, and lock washers, I've circled them in green in the picture

    • Remove those two bolts, which should give you enough movement to push that window track forward off the window a bit, then into the door a bit deeper

    • At this point it should be possible to pull out the window regulator, angling it as you go to avoid jamming on things

  13. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Preparing new parts: stap 13, afbeelding 1 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Preparing new parts: stap 13, afbeelding 2 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Preparing new parts: stap 13, afbeelding 3 van 3
    • As I mentioned in step 9, I was punished by the lack of threads in my new window regulator

    • So I broke out my tap and die set, and checked the bolt thread pitch, which was metric M6 x 1.0

    • I didn't notice until I'd already slipped my new part into the door... I actually pulled it back out of the door to tap the four holes

    • If your part also has a lack of threads in the holes, be sure to check it before you've put the clip through the pin, and reinstalled the track bolts etc

  14. 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Fitting the new regulator: stap 14, afbeelding 1 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Fitting the new regulator: stap 14, afbeelding 2 van 3 1976 Mercedes-Benz 230.6 Window Regulator Replacement, Fitting the new regulator: stap 14, afbeelding 3 van 3
    • Install several of the regulator bolts (remember the top two are the long ones)

    • Don't tighten them yet

    • Grease up the window bottom track and bushings before assembling

    • The bushing clip is pretty hard to get on - enjoy that

    • After you're happy with the placement tighten the bolts

    • Then remember to put the vertical window track bolts back in too - they have the funny dimpled flat washers (be sure the window glass is in the track)

    • Follow the steps backwards to reassemble the door

Conclusie

To reassemble your device, follow these instructions in reverse order.

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Gaspard Leon

Lid sinds: 24-04-10

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