I own a 2005 GLS. I am quite an easy, conservative driver. Im wondering
if an auto transmission,with 30K fluid changes, last to 165,000 miles without
majot problems or repairs?

It should.

On Elantraclub, I wrote 3 DIY's (2 are on the diy page) for the automatic. 1 is for an aux transmission cooler and the other is adding an aux filter on the cooler line. I also wrote a DIY on flushing the tranny. The trans flush DIY also is on the DIY section here as well.

I keep forgetting to ask James (SuperGLS) about adding the DIY's to the section here.

As long as you take good care of it It shouldn't have any major problems.

If you're launching hard and redlinging often it might develop trouble quicker, but since you're a good, conservative easy driver, you probably won't have that wear and tear to deal with.

Mine blew at 30,000 miles so who knows, but it was under warranty...

Kens GLS...when you say yours "blew" at 30,000, what does that exactly mean?
I know some fellas here have a tendency to exaggerate.

When I bought the car back in 01 in knew then something was wrong with the tranny, it just felt like it was slipping so I took it to the dealership many times and I was told there's nothing wrong.So one evening I was backing out of my driveway and reverse would not work so now i'm pissed so I put it into drive and I hear a clanking noise, so I said f#$k it WOT never shifted (auto) boom or grind I should say... Towed it to the dealership and they put a new tranny in...

why 165k miles?

i got a 2001 gls, and mine has 102,000 on it, and i havent had any problems, i have done all my transmision flushes, my radiator flushes, and my regular oil changes and it still runs good, no problems, well i want to get an engine with less miles on it, but so far mine runs great. havent used it in 6 months thou.

Ok guys, especially CC, I can not find the tranny flush DIY. What am I missing OR was it taken down for some reason? As CC knows, my 04 has 70K miles on her and I want to flush the tranny. I'm very mechanically inclined. I'm pretty sure it is straight foward like an oil change, but since I have never done a tranny flush I just want to make sure of everything at hand. I want to make sure there's no special tools or special procedure that hyundais require. Thanks for helpin me out and forgive my ignorance.---Hon-day04

On XD's they don't call it a tranny flush, but a fluid change. All you have to do is drop the fluid and refill it with Diamond spIII or hyundai trans fluid, no other brands. You don't need to replace the filter until the transmission needs to be rebuilt. Just drain and refill, quite easy.

Taken directly from hmaservice.com

AUTOMATIC TRANSMISSION FLUID REPLACEMENT

Disconnect the hose, which connects the transmission and the oil cooler (inside the radiator).
Start the engine and let the fluid drain out.
Running conditions : "N" range with engine idling.


CAUTION
The engine should be stopped within one minute after it is started. If the fluid has all drained out before then, the engine should be stopped at that point.

Remove the drain plug from the bottom of the transmission case to drain the fluid.
Install the drain plug via the gasket, and tighten it the specified torque.
Tightening torque : 32 Nm


Pour the new fluid in through the oil filler tube.
CAUTION
Stop pouring if the full volume of fluid cannot be poured in.

Repeat the procedure in step (2).
NOTE
Check the old fluid for contamination. If it has been contaminated, repeat the steps (5) and (6).

Pour the new fluid in through the oil filler tube.
Reconnect the hose, which was disconnected in step (1) above, and firmly replace the oil level gauge. (In case of this "replace", this means after wiping off any dirt around the oil level gauge, insert it into the filler tube.)
Start the engine and run it at idle for 1~2 minutes.
Move the select lever through all positions, and then move it to the "N" or "P"position.
Drive the vehicle until the fluid temperature rises to the normal temperature (70~80C), and then check the fluid level again. The fluid level must be at the HOT mark.
Firmly insert the oil level gauge into the oil filler tube.

OR
http://www.alldatadiy.com/alldata/AFI~V7235596~C40370~R0~OD~N/0/89012112/92767231/101522117/110695772/34853741/34860071/34860072/34860119/34860136

when I changed mine I let it drain for 1/2 hour and it took 5.75 quarts.

is diamond III the mitsu chrysler hyundai stuff?

because thats not right.. WEbtech has been known to have typo's.

it even shows a drainplug on the AT which does not exist.

anyway.. the transmission should last to 165k with proper maintenance and no neutral drops or prolonged visits to redline.. an aux transcooler will significantly prolong the life.. from what i've read and heard testimony of. so figured i'd get one too.. lol.

There IS a drainplug for the the A/T. That's how I drained my fluid :rolleyes: I'll put up a pic just for you. Also...you can check your manual and see that there's hyundai and diamond listed in there.

well thats why i'm not sure if Diamond is the mitsu chrylser stuff..
because shops list it also... but it has been analyzed as not the same stuff as OEM SPIII..

i spoke to a hyundai tech who said the drain plug picture for my 2002 was non existent and was a webtech mistake. you probably have it on yours. but not mine. the fluid on mine. i was told had to be done by the hose.

what do you drive what year? Just wondering, and I am not trying to be a smart ***. All the auto's are interchangeable 01+ so I figured if I have one u do too.
http://i21.photobucket.com/albums/b293/zx2uner/1-1.jpg