Do you need a special tool to change the brakes on 2000 Pontiac Bonneville with four wheel disk brakes?

You won't need any *special* tools in the sense of highly specialized, brake-specific equipment only used for this model, but you will need a fairly standard set of automotive tools. The exact tools will depend slightly on the design specifics of your Bonneville's brake calipers (some use different types of retaining clips), but here's a list of what you'll likely need:

* Wheel wrench/lug wrench: To remove the wheels.

* Jack and jack stands: Essential for safety – NEVER work under a car supported only by a jack.

* Socket wrench set (metric): Various sizes will be needed, likely including 13mm, 14mm, and possibly others. A ratchet will make the job much easier.

* Wrench set (metric): You might need some wrenches for caliper bolts or other fasteners.

* C-clamp or caliper compression tool: To compress the brake caliper piston. This is crucial to allow the new pads to fit. A good quality C-clamp is often sufficient.

* Pliers: Possibly needle-nose pliers for small clips or cotter pins.

* Torque wrench: Extremely important for tightening bolts to the manufacturer's specified torque. Incorrect torque can lead to brake failure. Consult your repair manual for specifications.

* Brake cleaner: To clean the brake components.

* Gloves: To keep your hands clean.

* Safety glasses: To protect your eyes from debris.

A repair manual specific to your 2000 Pontiac Bonneville is highly recommended. It will provide diagrams and torque specifications, making the job safer and easier. You'll find these online or at auto parts stores.

While not strictly "special tools," a caliper compression tool is a significant convenience over a C-clamp, and a torque wrench is a necessity for safety. Don't attempt this repair without the correct tools and understanding of the procedure. If you are unsure about any part of the process, it's best to take your car to a professional mechanic.