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Lexus IS250/350 High Mileage 100K+ Maintenance Info

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Old 08-23-10, 11:23 AM   #1
XhyDra
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Default Lexus IS250/350 High Mileage 100K+ Maintenance Info

As many of us are soon to approach the 100K mile mark on our Second Generation IS's, I wanted to ask owners that are past that mark to post up a sum of their experiences and maintenance information.

Mostly if anything major failed or needed replacing due to premature wear.

Another concern is 100K+ IS250's, the reason being several techs have noted that these cars have excessive carbon build up that should be addressed every 30k or so by manually cleaning the valves. One tech noted on an online reply that he had rebuilt several IS250 engines and replaced failed transmissions between 120-130k miles. That's a very high concern especially with the carbon issues us IS250 owners are having.

I want to add that please do not turn this into an IS250 carbon build up discussion, there's a thread for that. Please keep to the topic, just user experiences and information on high mileage Second Gen IS's.
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Old 08-23-10, 11:30 AM   #2
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What kind of tech were you talking to?
Rebuild due to what reasons?
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Old 08-23-10, 11:34 AM   #3
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Quote:
Originally Posted by Stock4AG View Post
What kind of tech were you talking to?
Rebuild due to what reasons?
Lexus ASE Master Techs I personally know, and the rebuild was posted on another website, I believe a tech chimed in. I will ask my techs when I get a chance.
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Old 08-23-10, 11:44 AM   #4
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Well in the worse case I would think they only have to take out the head only and rebuild it, to get it to perform like new.

at 100k the rings and bearings on the shortblock should still be good.

People go to dealership to get new engines and transmissions but there are usually many reasons for it, usually out of the norm..

I believe you but just my thought... despite all the little things the 2IS, usually toyota does a good job on things that spin. Except maybe the valve being coked up that needs cleaning.
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Old 08-23-10, 12:27 PM   #5
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Originally Posted by XhyDra View Post
Lexus ASE Master Techs I personally know, and the rebuild was posted on another website, I believe a tech chimed in. I will ask my techs when I get a chance.
What website? And what were the causes for the transmission rebuilds?

this is the first I'm hearing of any issues with the auto transmission on the 2IS... (heard plenty with the manual in the 250 though)
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Old 08-24-10, 06:14 PM   #6
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I am not buying the story of transmissions failing at 120k. Never heard of it before. If it was an issue we would have heard about it on this site.
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Old 08-25-10, 12:20 PM   #7
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I'd be surprise even if they do not change the ATF at all, the transmission are failing left and right at 120-130k miles. Usually those cars with well known transmission failure happen with a pretty wide spread of range, say, from 50k miles to 150k miles, and a car that came out at 2006 will probably have a lot of these cases already if it is a design error (i.e. Acura TL, Honda Accord V6, early Ford Taurus, VW Jetta, all all those European luxury brands).

You'll always see a couple odd cases here and there in all brands and model.
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Old 08-25-10, 12:20 PM
 
 
 
 
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