Replacing the rear brakes on a 2018 VW Atlas might seem intimidating without a scan tool, but it’s entirely achievable with the right guidance and a bit of patience. This guide will walk you through the process step-by-step, empowering you to tackle this common maintenance task confidently.
Understanding the Electronic Parking Brake System
The 2018 VW Atlas features an electronic parking brake (EPB) system that replaces the traditional handbrake lever. This system uses an electric motor to engage the rear brake calipers, adding a layer of complexity to the brake pad replacement process.
Why You Don’t Necessarily Need a Scan Tool
While many guides recommend using a scan tool to retract the EPB calipers for brake pad replacement, it’s not strictly necessary. The 2018 VW Atlas allows for manual retraction of the EPB calipers, eliminating the need for a specialized tool.
Step-by-Step Guide to Replacing Rear Brakes Without a Scan Tool
Before You Begin:
- Ensure the vehicle is parked on a level surface and the parking brake is disengaged.
- Disconnect the negative terminal of the battery as a safety precaution.
Tools You’ll Need:
- Basic socket set and wrenches
- C-clamp or brake piston compressor
- Flathead screwdriver
- Torque wrench
- New brake pads
- Brake lubricant
Instructions:
-
Access the Rear Brakes: Use a lug wrench to loosen the lug nuts on the rear wheels. Then, use a jack to lift the rear of the vehicle and secure it on jack stands. Remove the lug nuts completely and remove the rear wheels.
-
Retract the Electronic Parking Brake Calipers: Locate the caliper access hole on the back of the caliper. Insert a flathead screwdriver into the access hole and turn the adjustment screw clockwise until you feel resistance. This retracts the caliper piston and disengages the parking brake. Repeat this process on the other side.
[image-1|vw-atlas-rear-brake-caliper|VW Atlas rear brake caliper| A close-up image highlighting the access hole on the rear brake caliper of a 2018 VW Atlas. The image showcases the placement of a flathead screwdriver used to manually retract the caliper piston.]
-
Remove the Old Brake Pads: With the caliper piston retracted, remove the caliper guide pin bolts using a wrench or socket. Carefully pull the caliper away from the rotor, exposing the old brake pads. Remove the old brake pads from the caliper bracket.
-
Install the New Brake Pads: Before installing the new brake pads, clean the caliper bracket and apply a thin layer of brake lubricant to the contact points where the pads slide. Insert the new brake pads into the caliper bracket, ensuring they are seated correctly.
-
Reinstall the Caliper: Position the caliper over the new brake pads and align the caliper guide pins. Install and tighten the guide pin bolts to the manufacturer’s specified torque.
-
Adjust the Parking Brake: With the new brake pads installed, you’ll need to adjust the parking brake. Insert the flathead screwdriver into the caliper access hole and turn the adjustment screw counterclockwise a few turns. This will push the piston back against the brake pad and ensure proper parking brake engagement. Repeat this on the other side.
-
Reinstall the Wheels: Place the wheels back onto the hub and hand-tighten the lug nuts. Lower the vehicle using the jack and fully tighten the lug nuts in a star pattern to the manufacturer’s specified torque.
-
Reconnect the Battery: Reconnect the negative terminal of the battery.
-
Test the Brakes: Before driving, depress the brake pedal several times to restore brake pressure. Test the parking brake to ensure it engages and disengages properly.
[image-2|vw-atlas-rear-brake-pad-replacement|VW Atlas Rear Brake Pad Replacement| An image illustrating the rear brake assembly of a 2018 VW Atlas with new brake pads installed. The image highlights the correct positioning of the brake pads, caliper, and rotor.]
Expert Insights
[Quote from John Miller, ASE Certified Master Technician]:
“While a scan tool can simplify the process, manually retracting the EPB calipers on the 2018 VW Atlas is a viable alternative. Just remember to follow the correct procedure and exercise caution when working with the braking system.”
Conclusion
Replacing the rear brakes on a 2018 VW Atlas without a scan tool is a manageable DIY project for those with basic mechanical skills. By following these steps carefully, you can save money on labor costs and gain the satisfaction of maintaining your vehicle. Remember, safety is paramount when working on brakes. If you’re unsure about any part of the process, don’t hesitate to consult a qualified mechanic. For expert advice and top-quality diagnostic tools, contact ScanToolUS at +1 (641) 206-8880 or visit us at 1615 S Laramie Ave, Cicero, IL 60804, USA.
