OEM Volkswagen Brake Drums

How to Test if Your Brake Drum Is in Good Condition

Drum brakes are often overlooked, but staying on top of their condition is crucial for consistent stopping power. With a few basic tools and a visual inspection, you can determine whether your brake drum needs resurfacing or replacement. Keeping your Volkswagen Jetta safe starts with understanding how to check this key component correctly.

Testing Your Jetta's Drum Brakes

1. Remove the Wheel and Drum

Start by safely lifting the vehicle and removing the drum to access the braking surface inside.

2. Inspect for Scoring or Grooves

Deep grooves or uneven wear inside the drum can reduce brake shoe contact and signal the need for resurfacing.

3. Measure the Inner Diameter

Use a drum micrometer to confirm the diameter hasn’t exceeded the manufacturer’s wear limit.

4. Check for Heat Spots

Blue discoloration or burn marks indicate excessive heat and compromised braking performance.

5. Look for Cracks or Hairline Fractures

Any cracking on the drum surface is a sign of structural fatigue and calls for immediate replacement.

6. Assess Shoe Wear Patterns

Uneven shoe wear may point to out-of-round drums or issues in the suspension and steering system.

Ensure safe, consistent braking with drum components that meet factory specs for your Volkswagen Jetta. Order here for exclusive pricing and online discounts. If you need help, contact us anytime with fitment questions or installation support.