How To Replace The Front Brake Pads And Rotor Disc On A Chrysler 300

By Nick Marchenko, PhD

Hi! Today, we're diving into a hands-on task that might seem daunting at first, but with a bit of patience and the right guidance, you'll be swapping out those front brake pads and rotor discs like a seasoned mechanic. Whether you're a DIY novice or an experienced tinkerer, this guide is designed to lead you through each step with ease, ensuring your Chrysler 300 runs smoothly and safely.

Getting Started: Preparation is Key

First off, safety cannot be overstated. Ensure your Chrysler is securely raised and supported on jack stands. This isn't just a precaution; it's a necessity. Once elevated, remove the wheel to unveil the realm of brakes and rotors awaiting your skilled hands. For an extra layer of accessibility, give the steering wheel a turn to the left, exposing the brake caliper in all its glory.

Tools of the Trade

Your arsenal for this operation includes a 13mm wrench for the caliper bolts and an 18mm backing spanner to prevent any free spinning. A pry bar will also come in handy, not just for prying, but as a symbol of your readiness to tackle what lies ahead.

Shop From Amazon

DEWALT Mechanics Tool Set, 1/4" & 3/8" & 1/2" Drive, SAE/Metric, 205-piece (DWMT81534)

Craftsman Mechanic Tool Set, 215 Piece, Hand Box Set in Metal, 3 Drawers, Red (CMMT45303)

Craftsman Mechanic Tool Set, 230 Piece with 3 Drawers, Sockets, Extension Bars, Wrenches,...

Step-by-Step: Caliper and Pads

Begin by loosening the caliper bolts. A slight loosening of the top bolt before fully removing the bottom one helps avoid unnecessary caliper gymnastics. With the bolts out, use your pry bar to gently convince the caliper to part ways with its resting position, revealing the brake pads that have served you well but are now due for retirement.

As you bid farewell to the old pads, take a moment to admire the simplicity of their design, identical on both sides, making your task a tad easier. Utilizing one of the old pads, reposition the caliper piston back into its lair, preparing it for the new pads that await their debut.

On to the Rotor

With the caliper secured out of the way, the rotor is your next target. Removal is straightforward, though a rubber mallet may persuade more stubborn rotors. Clean the exposed surface thoroughly; a clean foundation is key to a successful installation of the new rotor.

Reassembly: The Home Stretch

Before the new rotor graces the hub, take a moment to address the carrier and its 21mm bolts. Removal of the carrier offers a perfect opportunity to clean and inspect it before placing the new rotor into position.

New pads await their turn, but not before you've had a chance to compare the new shims with the old, ensuring a perfect fit. A little cleanup and some fresh grease on the glide pins ensure everything moves smoothly, just as it should.

With the rotor and pads in place, the reassembly of the caliper and securing of the bolts marks the near conclusion of your mechanical adventure. But the journey isn't complete without a thorough check, a gentle reminder to replace those glide pins with a dab of high-temperature grease for good measure.

Shop From Amazon

Detroit Axle - Front 12.6" (320mm) & Rear Drilled Slotted Rotors + Brake Pads Replacement...

BOSCH 16010287 QuietCast Premium Disc Brake Rotor - Compatible With Chrysler: Select 300;...

Detroit Axle - 320mm Rear Disc Brake Kit Rotors Ceramic Pads w/Hardware Replacement for 30...

Finishing Touches: Safety First

Reattach the wheel, lower the car, and give the brake pedal a few pumps to ensure everything is seated correctly. This not only ensures your safety but is a satisfying conclusion to a job well done.

There you have it, a straightforward guide to replacing the front brake pads and rotor disc on your Chrysler 300. For more DIY tips and tricks, check out our other posts on replacing the map light bulb, the third brake light bulb, and the trunk actuator and button. And for those curious about why your ABS light might be on, we've got you covered too.

Remember, maintenance is key to longevity and safety. Until next time, keep those wheels turning and brakes stopping.

Nick Marchenko, PhD

Industrial Engineer & Automotive Content Specialist

Nick writes in-depth guides on car clubs, engine specs, vehicle ownership, and modifications, combining engineering knowledge with automotive passion.

Full profile → LinkedIn →