I see this everytime I open my hood to check things out on my 350. I've seen this on my IS250 as well. Coolant levels are as recommended. Is this normal?

 

There was a TSB for this, I had mine done a few years ago.

 

Your water pump is probably going to go out soon.... happened to me

 

Sweeeeet info, sorry about repost!

 

This has happened to my car too before. around 20K miles

 

Im curious to know what cause this too.

This was happening to me until i bought in my car to have my water pump looked at. I had assume my water pump was going too but my SA told me my water pump was working fine; but I had them do a coolant leak check just to be sure. Ever since, I have had no coolant crusting.

Can you confirm this is the water pump going bad? because i have a pretty good relationship with my SA, i dont doubt him

 

I have the exact same problem with my 350.

 

Same problem! 250 with 12k miles

 

where can i find TSB for this. not in FAQ thread. does it affect certain model year.

 

Lexus of Tampa Bay said it is normal, and not to worry, had water pump replaced cause of a different issue. Bad bearing causing lots of noise.

 

I've been having this issue too.. Same question as everyone else I guess.

 

Have it too, never done anything about it either!

 

when i bought my car it was the same issue and took this to the dealer and they took care of it, and now its there again. it seems like its normal.. it took this picute on Oct 2007

 

Don't think it's the water pump. As the water pump is all the way toward the bottom. It leaks and wine that when you know it's bad. It cant spray up that high.

 

Mine does this too...2011 is350 w/ 18k miles