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  1. 3rd Generation Optima (2011 - 2015)
    Bought a second hand Kia optima 2011 ex 2.4 and when I went to change the front brake pads, I found out that caliper is for a different model which is why I couldn't fit the OEM Kia optima brake pads. Should I keep it as is or get the original caliper back ? Serial code on the calipers...
  2. High Performance
    Just got a wild bit of inspiration: Active Aerobraking How hard would it be to replace the C Pillar mini windows with a pair of actuated air brakes? Essentially, a flap of metal with holes in it resembling the C Pillar window garnish, but when you press the brakes at speeds above 30mph, it...
  3. Engine and Technical Discussion
    Just saw a video from a channel I follow: ChrisFix, on NRS Brake Pads: My question to you all is: Has anyone installed these before? I'm looking to install some better brakes on my car that are a bit less noisy, so this seems like a pretty good option. What are you all's thoughts on these?
  4. Hybrids
    Car lights come on with bell and brakes go to the floor. Have to try to come to a stop with the grinding noise shut down car, restart and goes away. Comes back occasionally others have had this issue with one confirmed accident
  5. The Service Center
    Hi guys. Has anyone ever experienced their brake pedal being hard to press when trying to start the car with the push to start button? It feels like when you turn off your car and press on the brake pedal a couple of times until the pedal becomes stiff. This has happened to me a few times and...
  6. Hybrids
    Went out to the 2017 Kia Optima Hybrid in my driveway this afternoon and went to start it up and after pushing the start button and the system self check a "STOP VEHICLE AND CHECK BRAKES" warning appeared in the middle of the digital display. Now for the fun part... The car was driven earlier...
  7. 4th Generation Optima (2016 - 2020)
    I went to leave the Kia dealership after they did an oil change on my 2018 Optima sx. I didn’t realize they had set the parking brake. I drove forward about 6 feet. Then I put it in reverse to back up. It wouldn’t move in reverse. I tried the gas twice before I realized the parking brake...
  8. The Service Center
    I just replaced the two front calipers on my Optima, and I have a hugely squishy pedal. I bled the two front lines, and when I do, the driver side comes out yellowish and flows smoothly, no air bubbles. Let me go back a little bit. The reason why I am changing the calipers is that the...
  9. 3rd Generation Optima (2011 - 2015)
    After a short commute yesterday, we noticed a rubbing noise while pressing on brakes. It also stays for a while after release, then goes away until you press on the brake again. Rotors are pretty smooth and there are plenty of meat on the pads. Car has 21k miles. All wheels spin freely, but...
  10. The Service Center
    Never ceases to amaze me the problems with these cars. Vacuum at startup is normally poor, but the 2.0T needs some assistance so they have a vacuum pump installed, similar to what a diesel needs. Well, it happened a few times last year when cold and now this morning @ 13 degrees (F), at startup...
  11. The Service Center
    I noticed that there are 2 different part codes for the front rotors for a 2015 Optima LX. One part code is for Optima built in the USA and the other is for Optima built in Korea. All the tech specs are identical, would anyone happen to know if this part is interchangeable. I own an Optima...
  12. 3rd Generation Optima (2011 - 2015)
    I have a 2015 Optima Turbo w/ 20k miles. Normal driving. Dealer wants me to have “induction service.” TSB #058 recommends against. But he’s also referring to it as a throttle body cleaning# TSB #010 seems to allow for this. Is he confusing the two services. I have always used top tier fuel an I...
  13. New Member Introductions
    i have a 2015 optima and i wanted to cut off the center brake light thats behind the rear glass but i did not know how,any ideas ?
  14. 3rd Generation Optima (2011 - 2015)
    In the 40+ years I've been driving and working on my cars, I've never seen an instance where the rear brakes wore out well ahead of the fronts. The Optima isn't my DD, but is my wife's, so yesterday she tells me she's hearing the rear brakes scraping.. I said rear, are you sure you're not...
  15. The Service Center
    Help guys/gals. Recently took my Optima SX in to Midas to have the pads replaced all around. I should have done the research and bought my own pads and done the work myself, but I was under the gun as the wife had to drive it and I had to leave town for a business trip. So long story short they...
  16. The Service Center
    Does anyone have the details of this TSB? Specifically the part(s) I can order to fix this issue? My Optima is out of warranty. Tsb - outside rear combination lamp water intrusion - this bulletin provides the procedure to replace the outside rear combination lamp pads on some 2011-2015...
  17. The Service Center
    Hi gang, my 2014 SX has about 40K miles and has just recently started this weird thing when I am stopped and holding down the brake pedal. There will be this clicking coming from the pedal itself. I can feel it in my foot and each time I press down. I tried searching for this problem and the...
  18. 3rd Generation Optima (2011 - 2015)
    Attempting to insert Brake light flasher in BronzeKIA unable to get access to rear 3rd light and or wiring at rear deck. have been unable to locate KIA wiring Diagram or remove plastic inserts at rear quarter panel. KIA owners manual cautions against breaking this. Local KIA dealer did not...
  19. The Service Center
    Hello guys,It's time for new rotors on my '15 SX-T, and i've been looking around but can't determine whether the EX (2.4 na) and the SX (2.0 T) have the same brakes. Can someone tell me if they're the same or different brakes?Thanks,
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