LEXUS BD Posted November 7, 2013 Share Posted November 7, 2013 Hi All, I bought an 2008 IS250 2 months ago from lexus dealer in perth. The problem that I am facing is that when I change my gear from N (neutral ) to D (drive) there is a lag. ie It takes couple of sec to change from neutral to drive. Also the same happens when I change from N to R. Is it something very normal ? Or do I have a transmission issue? Should i change the transmission oil ? My car has only done only 62k. Any suggestions would be welcome. Thanks Quote Link to comment Share on other sites More sharing options...
I CU2 Posted November 7, 2013 Share Posted November 7, 2013 Mine doesn't do that - have you taken it to the dealer to get it looked at? Quote Link to comment Share on other sites More sharing options...
Tony1234 Posted November 7, 2013 Share Posted November 7, 2013 I'd recommend a transmision oil change using good quality full synthetic fluid. Quote Link to comment Share on other sites More sharing options...
Iggy Posted November 10, 2013 Share Posted November 10, 2013 mine also does that and it always did for the lat 5 years....I just assumed its normal...about 1/2 sec delayed response. Quote Link to comment Share on other sites More sharing options...
BigDenis Posted November 11, 2013 Share Posted November 11, 2013 I'd recommend a transmision oil change using good quality full synthetic fluid. You can't change the transmission fluid in the IS250. Quote Link to comment Share on other sites More sharing options...
E910 Posted November 12, 2013 Share Posted November 12, 2013 You can't ? I must tell my service guys to stop changing it then :P They take Toyota WS fluid. We change it every 90K. In Japan they call it lifetime fluid but thats only because most sell there cars before they get to 90K. WS is similar in spec to Dexron VI & Mercon LV. It's basically a low viscosity ATF for improved fuel economy over older specs i.e T-IV. Quote Link to comment Share on other sites More sharing options...
BigDenis Posted November 13, 2013 Share Posted November 13, 2013 You can't ? I must tell my service guys to stop changing it then :P They take Toyota WS fluid. We change it every 90K. In Japan they call it lifetime fluid but thats only because most sell there cars before they get to 90K. WS is similar in spec to Dexron VI & Mercon LV. It's basically a low viscosity ATF for improved fuel economy over older specs i.e T-IV. You can't, unless you have a part that replaces the heat exchanger built into the side of the transmission - and this is very specialised equipment that had not even been developed until a couple of years ago. Google it. Edit: you can only change a little at a time, you can't change all the fluid with the abovementioned. Quote Link to comment Share on other sites More sharing options...
Iggy Posted November 13, 2013 Share Posted November 13, 2013 Acceptable time lag when engaging a gear: Time lag: N → D less than 1.2 seconds Time lag: N → R less than 1.5 seconds Quote Link to comment Share on other sites More sharing options...
LEXUS BD Posted November 13, 2013 Author Share Posted November 13, 2013 I had it checked with the guys in lexus yesterday. They said it is normal to have a lag of 1 sec. They also said that there is no need to change the transmission fluid as it is sealed and very long lasting. BMWs Merc & Audis dont have a lag time in changing gear ... even mitsubishi lancer as well Quote Link to comment Share on other sites More sharing options...
E910 Posted November 14, 2013 Share Posted November 14, 2013 Specialist tools? A spanner to undo the drain plug? They only change about 3.5-4L but that is enough to refresh the additive pack in the oil & protect your transmission for another 90K Quote Link to comment Share on other sites More sharing options...
BigDenis Posted November 14, 2013 Share Posted November 14, 2013 Specialist tools? A spanner to undo the drain plug? They only change about 3.5-4L but that is enough to refresh the additive pack in the oil & protect your transmission for another 90K Read what "Kurtz" has to say about that method in the following thread: http://www.clublexus.com/forums/is-second-generation/618722-i-had-my-transmission-fluid-changed-at-the-dealer-is350.html Also here: http://www.clublexus.com/forums/is-second-generation/643544-diy-transmission-fluid-change-question-for-is250.html Edit: A "full" transmission fluid change on the IS250 is 7.5 litres, and on the IS350 is 7.9 litres. Quote Link to comment Share on other sites More sharing options...
ilv1004s Posted November 16, 2013 Share Posted November 16, 2013 it is suppose to be sealed for life but iv drained and changed the whole tranny fluid on my ISF the whole thing takes around 2 cans of AT fluid yes it does make a difference Quote Link to comment Share on other sites More sharing options...
Tony1234 Posted November 16, 2013 Share Posted November 16, 2013 it is suppose to be sealed for life but iv drained and changed the whole tranny fluid on my ISF the whole thing takes around 2 cans of AT fluid yes it does make a difference Ok.So my understanding is you CAN change the ATF in our cars! ilv1004s was it a dificult job?What was involved,any special tools required? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.