2010 LS with 58k miles spent most of time in Florida and now motor mounts need replaced. Is this a common issue with this year/mileage? What is expected replacement cost at dealership versus independent shop?

 

It is a common issue but not for the mileage. Why do you think you need new engine mounts?

 

Vibration in in steering wheel, driver's seat and floorboard, mostly at idle. Motor torques to side when place in drive. Local dealer dx as bad motor mounts.

 

I would inspect transmission mounts as well. I believe, the manual calls to remove the engine in order to replace the engine. But it can be done by removing the front subframe while supporting the engine. I think, a Lexus dealer will charge, at least, $1k just for labor.

Did they check the control arms as well? There is a chance somebody pushed the car little too hard.

 

It's possible, depends how you drive. I am putting way more strain into mine than the last owner and I don't expect them to live much longer.

Replacement of the mounts is not actually that hard, just get subframe loose. I have a lift so for me it's fine but in the ground may be annoying/hard. Trans mount is very easy

 

The Lexus Dealer will quote you $3,500 for motor mount replacement, citing engine out service as the reason.

It can be done in a few hours with jacks and jackstands in the garage and around $300 in parts, no need to mess with fluids or other shenanigans.

 

On my first LSIV motor mounts went at 50k miles. It can happen.
And yes, it can be DIYed, but not on AWD car. You need a lift on AWD (engine will stay in).

 

What was your cost to replace them?

 

About 150$ for each front mount, 300 in total. But I own a fully stocked garage with lifts. And it's not for squeamish, esp. on awd cars. Oh and alignment afterwards is a must (suspension disconnect during job). BTW every time we do front mounts on LSes - it's so night and day how car feels and drives afterwards. Siiiiiiiilk
Rear (trans) mount is more of a driveline vibration dampener, way cheaper and can be wiggled out/in without too much trouble. No big ride improvement, except if those are torn/sagged a lot.

 

Nice!! mine are probably due also. I feel a vibration when I turn my fan off…

 

Excess engine movement in bay, vibration felt in various places of the car especially when cold (mounts that are _almost_ dead will vibrate when cold but somewhat smooth out after warming up) - telltale signs of bad mounts.

 

thats where I think I’m at. I don’t notice after a few minutes. I think my tranny mounts are fine thou…