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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


 
 
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Old 07-27-2001, 03:22 AM   #10
Fuzzy Ewok
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A lot of it hinges on two things...the quality of the aftermarket sunroof and the skill of the person installing it. The quality of the product you buy is completely within the buyer's control...as for the skill of the installer... There is always room for question about any kind of work done like that, but it can be controlled by the buyer to some extent.

The difference in an aftermarket sunroof is that with a factory installed one, you're dealing with a proven, thouroughly tested method that is planned from the initial stages of the car design. The people doing it are either experts at doing it (since they would be factory workers who do it all the time, on the same type of cars) or, more likely, incredibly expensive machines more accurate than a human could be.

With an aftermarket sunroof, you normally have products sold with little or no guarantee against leaks. Sure it's been tested...but as much as a factory installed product? In addition to that, you've got an installer who probably doesn't deal with your type of car all that often. Maybe he/she installs sunroofs for a living, maybe not...maybe it is just a part of the business for his/her company.

No matter how you look at it, you have a person cutting holes in the roof of your car. What's being installed is a piece of glass meant to cover this hole and keep water out with some sealants/weather stripping/gaskets. And on top of that, it isn't just there to let sunlight in, it actually opens, complicating the sealing design even further. The parts aren't supplied by the factory, nor are they installed by people as the car is being constructed.

I'm not saying it isn't possible to have one that works perfect and lasts you a very long time without any leaks. I am saying, though, it's a risk...and a costly one if the coin lands on the wrong side for you. Water damage is bad enough, but when the water leaks through the areas it has to leak through from a sunroof, it carries with it a whole mess of interesting things that leave horrible stains. For every person out there who has never had a problem with an aftermarket sunroof, there is another who has.
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