Automotive Electric Sunroof Repair |
Blair's Texas Window Tinting and more repairs
electric sunroofs now serving the McKinney, Texas area.
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Do you install sunroofs or sell parts for them? | |
No. We have our gained knowledge of repairing them from doing headliner repairs. During our many years of replacing head |
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liners, we've fixed many sunroofs as well, along with repairing the head liners. We just fix existing sunroofs, mostly factory installed O.E.M. sunroofs where parts are available from the vehicle manufacturer. | |
The Most Scenarios We See | |
The broken part shown to the right is typical of what we see in many cases. This requires a complete rebuild. This lift arm attaches to the |
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drive cable that moves everything. When broken, the drive cable doesn't work right and the sunroof
doesn't close properly. This is a very, very common Ford truck part shown
here (we have lotz-o-practice here)... |
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Many times we see the problem is caused by someone in the past has put grease on the tracks to try to lube things up for one reason or another. The problem with that is over time, the grease gets coated in dirt and grit then dries out. This gums up the tracks and slides causing undue stress |
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to all the moving mechanisms. The reason why it dries out
is because that area is the hottest part of the car. It's kind of like
trying to swim through thick molasses in this scenario. Most sunroof
assemblies are designed to run on dry tracks. If you feel like it needs to
be lubed up, don't use grease! Use something dry if you can, such as dry
silicone aerosol sprays or something super thin that will evaporate such as
WD40® or similar. On greased up tracks we are dealing with, we'll clean off
as much of the grease as we can and the spray it down with Liquid Wrench® or
similar. This tends to dilute and wash out dried grease as you use the
sunroof. |
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Other problems we some times see is in the electrical side of things such as blown fuses, bad relays, bad operating switches, something unplugged, or is when |
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you press the operating switch, nothing happens even
but rarely, bad drive motors. The symptoms of this scenario or no noises are
typically heard. |
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Leaking Electric Sunroofs | |
Another common problem we see is people coming in with leaking sunroofs. A majority of them have been told by someone un-knowledgeable or just |
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assume that they need a new weather seal
to stop it. This is completely incorrect. The weather seal is there to do
two things. It keeps out leaves and debris while also eliminating wind
noise. It's not a water seal. |
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An electric sunroof is designed to take on water
and drain it away through drain tubes similar to how gutters work on your
house. What usually happens is one or more of the drain tubes is clogged up
by debris, most of the time being leaves, acorns, pine needles etc. Heck,
we've even found bullet casings, roach egg casings, spider nests, and other.
The picture to the right is an extreme case but it doesn't take much. A clean drain can even be messed up by just the broken off tip of one of those leaves that can leave you with an intermitted leak problem. The sunroof assembly usually has four drain tubes. One on each corner of the pan or track assembly, meaning two up front that runs down the inside of each wind shield pillar and two in the |
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rear that runs down the inside of the sail panels on either side of the rear wind shield. These drain tubes exit and drain through the underside of the vehicle. The front two drain openings usually (but not all) can be seen by simply retracting the sunroof |
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open and looking at the forward two
corners. There you should see a simple hole in the frame leading to the
drain tube on the back side of the frame. If you don't see these holes
because of trash being in the way, then you've more than likely found your
leaking problem. These two areas are where we see mostly being the problem
of being clogged. These drain tubes exit out of the bottom of the vehicle.
If they're clogged, water fills up the pan and overflows or sloshes into the
interior of the vehicle usually noticed when you turn a corner. |
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If no debris is found obstructing the front two drain tube openings then the fix is usually having to remove the sunroof glass-panel to be able to inspect the back two drain tube |
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openings. Usually a small pile of decomposed
debris is found piled up in front of one or both of the rear drain tube
openings. On these, the head liner has to be removed or the back half has to
be dropped to access. |
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Leaking problems other than listed above can be clogs down in the drain tubes themselves or even cracked or un-attached drain tubes. The fixes for this is usually having |
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to remove the entire headliner itself to be able to inspect and repair. Basically, leaking problems 99.9% of the time has to do with something going on with the drain tube system or something completely different from the sunroof itself such as a leaking wind shield, or pick up truck's rear cargo light gasket etc..... To avoid these problems, don't leave your vehicle
parked with the sunroof open under trees or don't open it when the roof is
covered with leaves and debris stuck to it such as after a rain storm,
etc... |
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Can you just get it closed for me? | |
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Some vehicles have the drive motor placement under a console panel located on the head liner between the two visors in front of the sunroof assembly. This is the |
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best and cheapest scenario to manually close it. Other vehicles have their drive motors located behind the sun roof assembly under the head liner. These cost |
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more in labor because to access it, the entire
head liner has to be removed. Some older cars have the drive motor in the
trunk located behind one of the side panels. |
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Do you work on any sunroof?
at Blair's Texas Window Tinting & more |
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We'll usually work on any sunroof we can get parts for (if parts are needed). It's usually not a problem getting parts unless it's an extremely old vehicle where the |
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dealer has
discontinued parts for that
vehicle or if it is an aftermarket sunroof that's been installed after the
vehicle was manufactured. |
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We prefer not to work on aftermarket sunroofs because you never know what kind of rigging you'll find once you get in there. For example, look at the picture to the left. |
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Yes, that's right. The installer who put this
sunroof in used CARDBOARD glued in place with silicone as a support bracket.
Generally the design, installation, and engineering on these are pretty
poor..... Sometimes, it might just be easier and cheaper to replace it with
a simple pop-up style sunroof. |
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What do these repairs usually cost? | |
The majority of the broken sunroofs we see are related to
broken guides, lift arms, and drive cables. Generally what happens is the sunroof hangs up on
something while opening or closing and jams. The motor continues to run and
the pinion drive gear on the motor either shucks or breaks the teeth off the drive
cables or breaks the guides and lift arms. These parts are usually available
and out the door repair costs on this scenario is usually around 1200.00-1500.00 to change them out. This is parts and labor by removing the
head liner and sunroof unit to install them (rebuild the sunroof unit on the
bench). If we don't have to remove the head liner which is kind of rare, then
this cost will be less....... |
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It is what it is... | |
Just bear in mind though, that through our many experiences, a used one will probably come already pre-broken in some dumb way (old brittle plastic parts) or break on you prematurely anyway. We've seen it too many times making one working assembly from 2 broken ones. One of them being the used undisclosed broken replacement that got delivered to us from a supplier. That in itself is labor intensive driving up the cost and ending up with old used stuff that works ok but who knows for how long... Due to the costs of this usual scenario, if you can, might as well spend a bit more and just go ahead and fix it right, use it, keep it clean from your new found knowledge here, and forget about it.
It is what it is... |
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Will my worn out head liner survive all this work? | |
Also, just to say the words, if we have to remove the head liner board and your material on that board is in rough shape, now would be the best time to recover it while it's out of the |
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vehicle for a fraction of the cost as opposed to going through the same process at another time to take care of repairing the head liner material. Sometimes, this becomes a "have to" because the material is in such bad shape that it doesn't make it through the removal of the board process without falling off in our hands due to a rotten, worn out foam backing. To see what's involved in head liner replacements go here:
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NOTE: It's definitely worth mentioning and we're not trying to scare
you into coming to us however, that we have had many come
in that had unqualified personnel working on their sunroofs that did more
damage than good which drives up the cost in repairs that shouldn't have
been needed. We see this scenario more that you'd think (even from auto
dealerships), so that's why we're mentioning it here for you to be careful
as to who you let work on it....... |
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My sunroof works fine but the shade panel needs to be recovered. Can you just recover that? | |
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Vehicles where it comes out through the top after sunroof glass removal. |
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Removing the sun shade panel on about 60-75% | |
of the vehicles out there is done by removing the sunroof glass and then the shade panel comes out of the top. These are the cheapest to do and can be done for around 200-300.00 on most vehicles with this type of design. |
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This is on a Mercedes. On these, it's worth mentioning that the plastic vent pieces usually (but not always) need to be replaced as well because they usually crack and |
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shatter upon removing them. They have to be bent to unsnap them loose and being this is the hottest part of the car, they are usually cooked plastic and very brittle from the sun's effects. |
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Sliding it forward to disconnect the rear slider tabs........ |
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Out and ready for the work bench..... |
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Vehicles where it comes out through the rear after head liner board removal. |
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On these types of vehicle designs, the whole | |
head liner board has to be removed which is labor intensive. On these types, more than likely the headliner itself needs to be replaced as well which recovering shade panel is included in the head liner replacement job. So basically, you might as well get the headliner board recovered as well |
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because the cost to just recover the shade panel will be almost as much as if you had the whole headliner done.... |
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Almost out.... |
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Out and on the work bench...... |
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Call Us @ (972) 783-6005 | |
During our normal business hours to set up an appointment or to ask any other questions that you may have. |
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