Both the engine and transmission problems have been solved in South Korea..
"The second series of K2 tanks in 106 units, ordered by DAPA as an option to the contract dated December 29, 2014, was to receive engine and transmission departments of completely own South Korean design and production, including a new Doosan Infracore DV27K diesel engine with a capacity of 1500 HP and an EST15K automatic transmission from the South Korean company S & T Dynamics."
And even using German RENK transmission would not be a problem for Egypt till the South Korean Transmission system is fully ready..
Home-made transmissions earn chance of being used for K2 tanks
https://www.ajudaily.com/view/20200716142720080