
Knowledge & Guides
MHOT Blog
Practical guides on automotive tools, repair work and buying from a Chinese manufacturer — written for workshops and distributors.
Latest articles
From the workshop & the factory

Cooling Systems
How to vacuum-fill a cooling system without airlocks
Why vacuum refill beats gravity bleeding, and the 3 steps that get a system air-free the first time.
Read guide →
Wheel Service
Removing a seized wheel hub: tools that actually work
When a hammer fails, a proper hub-removal kit saves the bearing. A step-by-step field guide.
Read guide →
A/C Service
R134a quick-coupler adapters: what fits what
A plain-English chart of coupler sizes, thread types and the mistakes that leak refrigerant.
Read guide →More guides are being written. Check back soon.
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