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Car Forum / Mercedes-Benz Cars / November 2007300D Sunroof
What would cause a sunroof to not open. I can hear the motor when I press the switch, but no roof movement. This was working, albeit slowly and hesitantly just a few weeks ago. On Nov 5, 2:17 am, "randallbr...@mac.com" <randallbr...@gmail.com> wrote: > What would cause a sunroof to not open. I can hear the motor when I > press the switch, but no roof movement. This was working, albeit > slowly and hesitantly just a few weeks ago. Mine did this right after I bought it. Only it got stuck open! It would eventually close, but very slowly. My solution was WD-40. I sprayed a little on each rail (the silver ones I think) and opened and closed it a few times. No more sticking. I imagine you could use lithium grease or some other intended lubricant, but WD-40 was all I had on hand at the time. As far as getting it open to lubricate it, I don't know. You may have to remove the headliner to get to the guts of it. Just so you know, the motor is in the trunk. It is on the drivers side outboard of the hinges. It is at the mounted near the top. It is cylindrical and has a metal tube coming out of it. Don't mistake it for the power antenna unit, which is a black rectangular box. I'm not saying that the motor is suspect, but it is something to check that is easier to access since it doesn't require removing the headliner. Make sure the plug is on tight and is corrosion free. If it fails in the open position, there is a manual mechanism on that drive unit. It takes forever to operate, but it will keep the rain out after a few minutes of work. look: http://img240.imageshack.us/img240/8184/785d1ne3.jpg http://img240.imageshack.us/img240/1960/motorsunroofeh4.jpg hope it helps On 6 nov, 09:56, "weelli...@gmail.com" <weelli...@gmail.com> wrote: > Just so you know, the motor is in the trunk. It is on the drivers side > outboard of the hinges. It is at the mounted near the top. It is [quoted text clipped - 8 lines] > drive unit. It takes forever to operate, but it will keep the rain out > after a few minutes of work. > look:http://img240.imageshack.us/img240/8184/785d1ne3.jpghttp://img240.imageshack.us/ img240/1960/motorsunroofeh4.jpg > [quoted text clipped - 14 lines] > > drive unit. It takes forever to operate, but it will keep the rain out > > after a few minutes of work. This is very helpful. Thanks! On Nov 6, 4:56 am, "weelli...@gmail.com" <weelli...@gmail.com> wrote: > Just so you know, the motor is in the trunk. It is on the drivers side > outboard of the hinges. It is at the mounted near the top. It is [quoted text clipped - 8 lines] > drive unit. It takes forever to operate, but it will keep the rain out > after a few minutes of work. I forgot about that manual unit, and the location of the motor as well, for that matter. Many thanks! This is why a diesel car tool kit comes with a spark plug socket! > On Nov 6, 4:56 am, "weelli...@gmail.com" <weelli...@gmail.com> wrote: > > Just so you know, the motor is in the trunk. It is on the drivers side [quoted text clipped - 14 lines] > > Many thanks! > This is why a diesel car tool kit comes with a spark plug socket! > [quoted text clipped - 20 lines] > > > Many thanks! That's good. I can manually open the roof, lubricate the tracks, and troubleshoot the motor, which I believe is working. |
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