Best Bi-Directional OBD-II scan tools in 2025

Whether you are looking for a professional Bi-Directional scan tool to run a shop or you just want to get something on a DIY budget I got you covered. I tested a bunch of Bi-Directional scanners including smartphones, tablets, and computer tools.

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Quick recommendations

thinkscan 689BT
Free lifetime updates
Thinkscan 689BT

Thinkcar Thinkscan 689BT does it all. You have full-system scan/erase faults and data + all the service and coding features you might need as a DIY or semi-professional mechanic.

(Use “CARHACKER” for 10% OFF on official website)

xtool d7
Budget option
XTool D7

Simple to use, packed with advanced features like ECU coding and with a wired connection, you don’t even have to charge it often.

It will charge itself when connected to the car.

(Use “CARHACKER” for 10% OFF on official website)

Mucar VO8
Mucar V08

Cheapest on this list, and the only one you can buy with free lifetime updates included! So no more payments while it works as a full-functional scanner even with ECU coding.

(Extra 10% off with coupon “CARHACKER”)

topdon phoenix lite
Topdon Phoenix lite 2

Phoenix Lite 2 will not disappoint when working on any car. With large vehicle coverage, you can work on basically all brands.

Launch X431
Launch X431 V+

My favorite scanner for cars I am dealing with (Eastern Europe) but it will not get lost even on American/Asian cars. Great for both diagnosing issues and coding new features.

xtool d9s
XTool D9S

XTool tends to bring more advanced features to their lower-priced scanners and this is Wi-Fi connection which tends to be faster than Bluetooth.

(Extra 10% off with coupon “CARHACKER”)

Kingbolen K10
Kingbolen K10

Similar to others offers full Bi-Directional features, scans all systems, large vehicle coverage,e and even ECU coding to customize settings in car and code replacement modules.

My insights after testing 100+ OBD2 tools

I’ve tested literally hundreds of OBD2 scanners, so let me tell you why I find these the best value for money.

What I found testing different scan tools

The entry-level scan tool will give you access to more functionality + better speed. Even in the entry-level price range for scan tools, there are a few worth mentioning.

(By the way, this is only a tablet scan tool. You can have a scan tool way cheaper if you choose one of these J2534 adapters and use them with your smartphone). BUT, it will be with less functionality and with a mandatory yearly subscription for most of them.

Thinkscan 689BT has free lifetime updates!

Think car Thinkscan 689BT does it all. You have full-system scan/erase faults and data + all the service and coding features you might need as a DIY or semi-professional mechanic.

But with an amazing bonus. Free lifetime updates which is extremely rare in scan tools like this.

Get $99 OFF on the official website while it lasts.

Pros

  • Full-system scan
  • 150+ brands supported
  • 34 Service procedures
  • Bi-directional / Active testing
  • OEM Ecu coding
  • Free lifetime updates

Cons

  • Nothing so far

Mucar VO7 – Entry level for Europe/Asia

Mucar VO7 for VAG

Mucar VO7 is literally cheapest scan tool I ever bought. But using it for a few months now it definitely doesnt seem the cheapest.

I used it for multiple cars for full scan which as expected works fine but also advanced procedures like solving TPMS faults by reprogramming sensors, disabling lightbulb control lights with ECU coding for Skoda Rapid, and coding new features for Toyota Corolla.

Especially for VAG cars, this tool is amazing since it comes with a built-in long coding helper which you can use to perform advanced procedures on your Volkswagen, Audi, Skoda, and Seat same as aftermarket VAG tools like VCDS or OBDeleven.

Pros

  • Full system scan + PDF report
  • 28+ service procedures
  • ECU Coding (even OEM VAG)
  • Camera
  • Good vehicle coverage

Cons

  • Have not found anything yet

XTool D7 is great budget pick

I like XTool products mostly because of their easy-to-use interfaces without any headaches and XTool D7 is not different.

Simple to use, packed with features and with a wired connection, you don’t even have to charge it often.

It will charge itself when connected to the car.

Use “CARHACKER” for an extra 10% OFF on xtool website.

Pros

  • Full scan
  • Full data in all modules
  • 36 Service procedures
  • ECU coding
  • Bi-Directional
  • 3-years free update
  • It charges from car (wired)

Cons

  • Nothing considering price

Find the best price

Topdon Artidiag 900 lite

topdon artidiag 900 lite

This is Topdon artidiag 900 lite and even though I liked it, I feel like there are some better options as a DIY scan tool.

Topdon Artidiag 900 lite is a great entry-level scan tool suitable for every DIY mechanic who is looking to start using a professional diagnostic tool.

It just misses ECU coding and doesn’t have that many service procedures. The brand itself is very good, but I would rather go with their better model like Phoenix 2 Lite.

Pros

  • Cheap
  • Full diagnostic features
  • Access to TSBs
  • Wireless
  • Screen recording

Cons

  • No ECU Coding
  • Only 8 service procedures

Get the best price

Here are multiple stores where you can get Topdon Artidiag 900 lite. Check them out to get the best deal possible.

Otofix D1 lite for US

otofix D1 lite

It uses Autel software which is popular for US vehicles. You might not get ECU coding like with Mucar V07 but it does support more service procedures + they also have cloud live data analysis to help you solve fault codes based on scanned data.

Ideal for home mechanics as you are getting a professional scan tool for an affordable price and updates are not mandatory.

This means after the 2-year free update period is over, you can continue using the tool with the same software, you just will not receive new updates.

Pros

  • Could-based data upload (upload data log to possibly get a solution for your problem)
  • One of cheapest scan tools on the market
  • 2-years free update
  • All bi-directional functions + access to all modules
  • Solid vehicle coverage (80+ brands)
  • 38 Service resets

Cons

  • No ECU coding

Find the best price

Conclusion: Best Bi-Directional scan tools

OK, I provided a lot of examples of Bi-Directional scanners for DIY budget which you can choose from. But if you rather spend more money for better featured tool, here are my TOP 3 Winners

thinkscan 689BT
Free lifetime updates
Thinkscan 689BT

Thinkcar Thinkscan 689BT does it all. You have full-system scan/erase faults and data + all the service and coding features you might need as a DIY or semi-professional mechanic.

(Use “CARHACKER” for 10% OFF on official website)

Mucar VO8
Mucar V08

Cheapest on this list, and the only one you can buy with free lifetime updates included! So no more payments while it works as a full-functional scanner even with ECU coding.

(Extra 10% off with coupon “CARHACKER”)

xtool d9s
XTool D9S

XTool tends to bring more advanced features to their lower-priced scanners and this is Wi-Fi connection which tends to be faster than Bluetooth.

(Extra 10% off with coupon “CARHACKER”)

Video: Best Bi-Directional scan tools

Free PDF: How to choose OBD2 scanner

buyers guide popup

I’ve made you a free PDF to choose the OBD2 scanner in 5 minutes.

✅ Which OBD2 scanner is best?
✅ Which type should you get (DIY, Pro, Hobby)
✅ What is the best scanner for the exact brand/feature (e.g best for BMW)
✅ How to get a Bi-Directional tool for as cheap as $40
✅ Discount coupons for scanners

PDF is 100% free and it is designed to help you pick a scanner in less than a few minutes! Not a boring 50-page guide. 

Just tell me where to send it.

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