How to Perform Professional ABS Brake Bleeding With the Autel MK808S
Got soft brake pedal? Here’s how to perform a professional ABS bleed with the Autel MK808S.If you work on hydraulic brake systems --- like those in a 2012 Buick Enclave --- you know the headache: after a fluid change, the pedal feels spongy or goes straight to the floor. This usually means air is trapped inside the ABS valves. Standard gravity bleeding or the old “pump the pedal” method won’t cut it here. To get the job done right, you need a professional scanner like the Autel MaxiCheck MK808S to walk the system through a proper ABS bleed.
How-To Guide: 2012 Buick Enclave ABS Automated Bleed Procedure
If you notice a soft or spongy pedal after a brake fluid flush, follow this standard procedure with the MK808S to purge residual air from the system. (Note: Steps may vary by vehicle; always follow the on-screen prompts.)
Step 1: Connect & Identify
Plug the MK808S into the OBD-II port and turn the ignition to the ON position. Use AutoVIN to quickly read and verify the VIN, then select the “Buick” software.
Step 2: Access Service Functions
From the main menu, tap the “Service” icon. Locate and select “ABS Bleeding” from the maintenance list.
Step 3: Initiate the Automated Bleed
- Select “Automated Bleed”. The MK808S will now display detailed on-screen instructions. Prepare your bleeder kit and follow the sequence (typically starting with the left front wheel):
- Crack open the bleeder valve and attach the hose to your catch bottle.
- Tap “Confirm”. The MK808S will activate the ABS pump to force fluid through the circuit (you’ll hear the pump run for about 30 seconds).
- Watch the hose until the fluid runs clear with zero bubbles.
Step 4: Complete the Cycle
Follow the tool’s prompts to repeat the process on the remaining wheels (RF, RR, LR).
Critical Tip: Constantly monitor the brake fluid reservoir level. Top it off immediately if it gets low. If air enters the system again, you’ll have to start the entire process over.
Why the Autel MK808S is Great Value for DIYers and Small Shops
Skip the $2,000+ flagship scanners. For around $449 (just $389 on sale!), the MK808S delivers pro-level performance without the premium price tag:
-
Bi-Directional Control & Active Tests: Send commands directly to the vehicle. Test fuel pumps, roll up windows, cycle wipers, or fire up the ABS pump for bleeding—features once reserved for high-end workshops.
-
OE-Level All-System Diagnostics: Covers 150+ global makes, diving deep into Powertrain, Chassis, and Body systems. It even generates professional PDF diagnostic reports.
-
28+ Service Functions: Beyond ABS bleeding, it handles key maintenance tasks: Oil Resets, Throttle Body Relearns, Injector Coding, and more.
-
Lightning-Fast Workflow: Equipped with AutoVIN and Auto Scan, it identifies the vehicle and scans all systems in seconds, cutting down your bay time.

The Bottom Line
When a standard gravity bleed leaves you with a sinking pedal, the ABS Automated Bleed function is the final piece of the puzzle. The Autel MK808S transforms your home garage or independent bay into a professional-grade workshop --- it’s far more than just a code reader. By giving you dealership-level control over critical systems, it turns frustrating, multi-day headaches into routine maintenance.
Whether you’re a DIYer aiming to stop wasting money on steep labor rates or a new technician building out your arsenal, the MK808S delivers precision and efficiency at a price point that actually makes sense.