What is ABS Bleeding Bidirectional Scanner? Why VD70S Outperforms Manual Bleeding Methods
When it comes to servicing your vehicle’s braking system, air in the ABS module is one of the trickiest problems to solve. Traditional manual bleeding methods—pump the pedal, open the valve, repeat—might work for basic systems, but once the ABS module is involved, you need a smarter tool.
That’s where a bidirectional scanner with ABS bleeding capabilities comes in—and the VDIAGTOOL VD70S is an excellent example.
What Does “ABS Bleeding” Actually Mean?
ABS (Anti-lock Braking System) uses a series of valves and pumps to modulate brake pressure during emergency braking. These components are controlled electronically and can't always be bled using standard methods. When air gets trapped inside the ABS hydraulic unit (like after replacing the master cylinder, ABS pump, or brake lines), it must be electronically activated to cycle and push out the air.
That’s what ABS bleeding via bidirectional control does: it commands the ABS module to open its internal valves and pump fluid, allowing the trapped air to be released.
Why the VD70S Makes ABS Bleeding Easier and Smarter
The VDIAGTOOL VD70S is more than just a code reader. It’s a professional-grade diagnostic tool that includes bidirectional control, allowing you to trigger ABS bleed cycles directly from the scanner screen. Here’s why it beats manual methods:
● Electronic Activation: VD70S sends commands to the ABS module to open and close solenoids during the bleed process—something you simply can't do with a wrench.
● Step-by-Step Guidance: The scanner provides on-screen instructions, so even if you're not a seasoned tech, you can follow along confidently.
● Live Monitoring: Monitor brake fluid pressure and wheel speed sensors in real-time, so you know when the job is done right.
● Multiple System Coverage: Works on most mainstream vehicles with ABS systems, including newer models with electronic parking brakes (EPB).
Manual Bleeding vs. VD70S: A Quick Comparison
| Feature | Manual Bleeding | VD70S ABS Bleeding |
|---|---|---|
| Can remove air from ABS module? | ❌ | ✅ |
| Requires pedal-pumping assistant? | ✅ | ❌ |
| Works on vehicles with EPB? | ❌ | ✅ |
| Provides system status feedback? | ❌ | ✅ |
| Risk of incomplete bleeding? | High | Low |
Final Thoughts
If you're replacing brake components or your pedal still feels soft after a manual bleed, chances are air is trapped in the ABS system. Instead of guessing or paying for a trip to the dealer, a bidirectional scanner like the VDIAGTOOL VD70S lets you perform ABS bleeding the right way—quickly, cleanly, and confidently.
So whether you're a DIYer looking to level up, or a shop tech wanting to save time, VD70S gives you dealer-level power without the dealer-level price.
