Insightful reading here:
In order to enjoy the best that cross-border travelling in Africa has to offer it is important to be aware of all the relevant regulations and required documentation needed. Some countries have specific regulations in respect of motor vehicles being driven across their borders. Getting ready for...
aa.co.za
From the article, for Mozambique specific:
The Carnet de Passage is not required for Mozambique.
Required Documentation:
Valid passport of the driver
Certified copy of vehicle registration papers in the name of the driver
Letter of authority from the registered owner if the vehicle is not owned by the driver
vehicle is still being financed, carry a letter of authority from the bank (must include dates of travel) together with the vehicle license papers.
Valid driver’s license
Temporary Import Permit for vehicle: Compulsory
Third-Party Insurance: Compulsory
Red Warning Triangles: 2 triangles required (does not need to be displayed on car)
Reflective Jacket: If more than two people are travelling in the car, then two jackets will be required (to be used when changing a tyre, at an accident scene, or if loading)
Immigration Fees
Declaration Form for Vehicle
Yellow and Blue Mozambique Warning Triangle: Two stickers required if towing a trailer; one in the front of the vehicle (on the bumper) and one on the rear of the trailer
ZA Sticker
International Driving Permit: Recommended