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Ships within 48 hours · Estimated delivery Jul 4 - Jul 9
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Description
LAUNCH X431 MCU3 Programmer Kit for Mercedes ECU/TCULAUNCH X431 MCU3 Programmer Kit Mercedes ECU & TCU Reading Tool Professional Mercedes Benz ECU TCU Reading Kit The LAUNCH X431 MCU3 Programmer Kit is a 100% original accessory designed for advanced ECU and TCU reading on Mercedes Benz vehicles. This module is an essential upgrade for professional technicians working with LAUNCH XPROG3 or GIII programming interfaces. Key Features Designed for Mercedes Benz ECU TCU Specially developed for reading
LAUNCH X431 MCU3 Programmer Kit – Mercedes ECU & TCU Reading Tool
Professional Mercedes-Benz ECU/TCU Reading Kit
The LAUNCH X431 MCU3 Programmer Kit is a 100% original accessory designed for advanced ECU and TCU reading on Mercedes-Benz vehicles. This module is an essential upgrade for professional technicians working with LAUNCH XPROG3 or GIII programming interfaces.
Key Features
✅ Designed for Mercedes-Benz ECU/TCU
- Specially developed for reading Mercedes-Benz electronic control units
- Supports both ECU and TCU communication protocols
✅ Compatibility Requirements
- Must be used with LAUNCH XPROG3 or GIII programming devices
- Compatible with LAUNCH diagnostic tools including:
- X-431 PRO, X-431 PRO 3, X-431 PRO 5
- X-431 PAD III, PAD V, PAD VII
- X-431 V, V+, and PRO 3S+
✅ OEM Build Quality & Warranty
- 100% original LAUNCH product with premium-grade components
- Backed by a 1-year manufacturer warranty
- Reliable support — contact us anytime for product guidance
Important Notes
Please confirm compatibility with your existing LAUNCH programming tools before purchasing. This kit is intended strictly for professional automotive diagnostic use.
Specifications
- Model Number: LAUNCH MCU3 USA
- Part Number: LAUNCH MCU3
- Package Dimensions: 12.2 x 5.4 x 2.4 inches
- Warranty: 1 Year
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 519 reviews
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Product Reviews
★★★★★ 4
Nice product
Color: 2-Speed Rechargeable Set with Charging Base
Edit: Customer service actually did offer to replace it. Received the new set and it works fine. Nice set. Only gripe is I think that the motor could be a little stronger. Sounds like it’s struggling at times.
Received a defective item reached out to customer support for Circle joy and they’re basically saying that it’s user error and not a defect in their product, even though I explained to them that the other one works fine. When adjusting the coarseness on one of the grinders, the grinder ends up loosening up, which ends up with you spilling the pepper corns everywhere. It’s a nice set if it worked right but for $40 I expect her device to be a little more polished.
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Reviewed in the United States on April 27, 2025
★★★★★ 5
great for my bad hands, hygenic, easy to use.
Color: 2-Speed Rechargeable Set with Charging Base
so far so good. I cook a couple times a day. I also have bad RA in my joints. this product has really helped already. from the clean size adjustment to the ease of charging. Like i have owned it for years is how easy this product has entered my kitchen routine. strong product and hygenic because you adjust the grind from twisting the body, not messing inside the grinder.
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Reviewed in the United States on October 18, 2025
★★★★★ 5
Easy use and easy charge.
Color: 2-Speed Rechargeable Set with Charging Base
This is so easy to use and easy to charge. The set has made life so much easier.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Great product
Color: 2-Speed Rechargeable Set with Charging Base
Great product
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Reviewed in the United States on June 1, 2026
★★★★★ 1
Good looker but terrible performance
Color: 2-Speed Rechargeable Set with Charging Base
I purchased the product and the base would not attach from the charging module. This is their big selling point. I requested a replacement and sadly the replacement was of the same batch run as the original soo…. Yeah that base would not detach. There are videos showing how easy it is to detach base from charging module. Not theses units. Circle Joy customer service is an @gmail.com. They said base is not designed to be removed frequently. I reminded them the separation feature is their highlighted feature. I was just looking for a base. Circle Joy said no…. If I do not like either unit just return them to Amazon.???? In the meantime, after maybe a dozen grinds, the original unit quit grinding normally and would barely grind at all. I shook it out and it worked again but doesn’t sound right. Two takeaways: 1) Poor product quality. 2) I am sooo done with trying to work with Amazon on replacement items. Save yourself a tone of aggravation and just return the order and reorder if you dare. Otherwise good looking and heavy feel and works great about 10 times. Too bad so sad. Now I have this huge return hassle with Amazon.
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Reviewed in the United States on February 6, 2026