Question about 1998 Lexus LS 400

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How do you replace Disc Brake Pads in a Lexus LS 400? I've done many front Break jobs, but not sure exactly how to replace pads in this car. It seems that there is a way to just slide them in without removing the whole Caliper Assy. It seems like there is a way to slide them in just like bread into a toaster. Of course I 1st need to remove the warn pads somehow. Please clarify how to do this, and if I need to remove the caliper Assy and if so, How exactly? Thank you! Much Appreciated. J

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Hi, jack up the car, remove the wheels.

If you are using a hydraulic jack, this is the jack point I used.

(Unlike many other models, the caliper does not have to be removed to change the brake pads on the Lexus LS430) Push the pin out with a screwdriver as you press on the middle of the metal plate as I am doing with my thumb. How do you replace Disc - tunde007_3.jpg


Open the hood and locate and open brake fluid reservoir cap to allow pressure to be released later when compressing the brake piston


Remove the old brake pads, they should slide out. If not, you may need to push the piston back by sliding a flathead screwdriver in there. Comparing the old brake pads with the new.


The old pads will have metal plates which you can reuse. I applied anti-squeal paste on the outter contact surfaces.


Brake pad sensor On the passenger side brake pads, there is a brake sensor which slides out and should be installed back in the new brake pads.


You can either use a C-clamp to push the pistons back in as the new pads will be larger than the old brake pads. Instead of a C-clamp, I stuck the old pads in between the rotor and pistons and pushed the pistons back. It would be wise to put some cardboard paper to protect the surface of the rotor. Also avoid pushing against the piston rubber surface.

Install the new pads and everything else in reverse, and you are done! Don't forget to close the brake fluid reservoir cap, and pump the brakes before driving off so that pistons meet the new brake pads snugly.

Posted on Apr 01, 2011

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A circle witth dots going around it.I change all the pads but the light still is lit?


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Brake Pad Replacement, Resurface Rotors for your 1998 Lexus LS400


what is the question???? I will guess...please don't hammer my raiting for not answering the "right question" ...

So, if you are doing a break job, and you are wondering if the rotors need to be resurfaced or machined? okay, first thing you need to do is to take a micrometer and check the thickness of the rotor. There will be minimum machineable thicknesess. If your rotor is thinner than the minnimum allowable thickness, you will not be able to machine it, and it will have to be replaced. Looking at the year of your vehicle, when were the breaks last done on it? if it was quite a while ago...you might want to consider replacing the rotors as well. If the question is on how to replace the break pads, i can't realy help you too much there, i can tell you the very basics, but you kinda just have to see it. So if you get stuck, take one side apart at a time.... If you need help on doing the actual pad change, ask back. but the basics are that you have to unbolt the caliper (leave the braket on) and pull the pads out while making sure to keep and eye on how the little springs/clips go in (if you have them, not all vehicles do). Also, caution on which break pads you put where. Some types are specific on which side of the rotor they have to be on. If this is the case, they "usually" give you instructions....Best of luck

May 30, 2010 | 1998 Lexus LS 400

1 Answer

How do i reset brake ware indicator on my 1999 lexus ls400


The brake wear indicator is a small metal stone-like sensor that attaches to the brake pad. Once the pad wears down to a certain level, it begins wearing into the sensor, breaking the circuit open.


Once the light has come on, the appropriate sensor (front or rear) must be replaced to return functionality.
Factory brake pads usually come with new sensors. Aftermarkets do not, and often have no provisions for attaching them either.

Alternately, you can bypass the brake level sensors by splicing the two wires for the sensor together. You will no longer have brake level warnings if you do this however.

Sep 12, 2009 | 1999 Lexus LS 400

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Duration of brake pads? Cost?


pads always depend on the driver. the easier you are on them the longer they will last. the more you ride the brakes the shorter they will last. according to autozone.com front pads will run you about $36 and for the rear pads $30 for some cheapies and $46 for some good ones.

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Replace brake pads and rotor on Lincoln LS 2000 front wheels.


new rotors and new brake pads ...
...full job would include loaded calipers with all new hardware ..if you pay attention to disassembly you will not need a service manual necessarly..all is logical and straightforward...but you are dealing with safety so be sure you are good before taking a drive ...good luck

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