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

By Nick Marchenko, PhD

Embarking on a DIY journey to replace the rear brake pads and rotor disc of your Chrysler 300 is not only a rewarding endeavor but also a fantastic way to get intimate with the mechanics of your vehicle. This guide will meticulously walk you through the process, ensuring your endeavor is as smooth as the ride your Chrysler 300 provides.

Preparation and Safety

First and foremost, safety and preparation are paramount. Ensure your Chrysler is securely jacked up and resting on stands, with the tire removed to access the brake assembly. Your toolkit should include size 15 and 18 mm sockets for the caliper carrier and glide pins, respectively. A gentle reminder: patience and precision are your best friends here.

Caliper and Brake Pads Removal

Start by loosening the two size 15 bolts holding the caliper carrier. It's advisable to keep the top bolt slightly engaged while you undo the bottom one to prevent the assembly from dropping. With the bolts out, gently remove the caliper and use a C clamp or similar device to retract the caliper piston. If you're curious about further lighting enhancements, consider replacing the map light bulb in your Chrysler 300 for improved interior visibility.

Rotors and Brake Carrier

Proceed to remove the brake carrier by undoing two 18 mm bolts. With the carrier off, it's time to tackle the rotor. A few taps with a hammer around its edge and back should free it. This process may require patience, especially if corrosion is present. A noteworthy tip: addressing a clogged catalytic converter can enhance your vehicle's performance significantly, as discussed in our guide on Chrysler 300's catalytic converter issues.

Installing New Rotor and Brake Pads

Before fitting the new rotor, clean off any corrosion on the hub for a snug fit. Remember to remove the protective oil coating from your new rotor with some brake clean. When reassembling the carrier, apply fresh grease to the glide pins and the areas where the brake pads will sit. This step ensures smooth operation and prevents premature wear.

Reinstallation is the reverse of removal. Secure the carrier and rotor, then fit the new brake pads, paying attention to their orientation and the wear sensors. For detailed guides on replacing other light fixtures, our posts on replacing the third brake light bulb and changing the brake light bulb on a Chrysler 300 might be of interest.

Final Steps and Testing

Once everything is back in place, lower the car and pump the brakes to ensure the caliper piston is properly seated against the new pads. This action fills the system with fluid and prepares your brakes for immediate use. Do not forget to replicate this process on the other side for balanced braking.

Shop From Amazon

SureStop Front and Rear, Driver and Passenger Side Brake Disc 4-Wheel Set Compatible with...

AutoShack BRKPKG039446 Front and Rear Drilled Slotted Brake Rotors Silver Set of 4 Replace...

Replacement Part For 2006-2014 300 SRT8 6.1L 14.17 Inch Front Brake Rotors & Ceramic Pads

After completing the replacement, a test drive is essential to ensure everything is working as it should. Listen for any unusual noises and pay attention to the brake response. Remember, maintenance like this not only saves you a visit to the mechanic but also extends the life of your Chrysler 300.

For enthusiasts looking to delve deeper into DIY maintenance, our guides on adding and checking engine coolant and replacing the engine oil and filter offer valuable insights into keeping your vehicle in top condition.

In conclusion, while the task of replacing rear brake pads and rotor discs may seem daunting at first, with the right tools and a bit of patience, it's a highly achievable weekend project. Not only will you save on labor costs, but you'll also gain the satisfaction of having done the job yourself. Happy wrenching!

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 →