Jetta TD Wheel Bearing Replacement (JR Engine)

Hello everyone,
Has anyone ever replaced the Pleuel (connecting rod) and crankshaft bearings of a 1.6TD engine while it was still installed in the vehicle?
Is that even possible?
I'm having problems with the oil pressure, and everything I've been able to find out so far suggests that the bearing shells are likely worn out.

Regards,
Hendrik.

Theoretically, it is possible to replace the connecting rod bearings and crankshaft bearings while the engine is still installed, but this doesn't make much sense because the transmission needs to be removed to get the crankshaft out, and at that point, the engine is almost out anyway! Besides, all the parts are more accessible then, and the timing belt needs to be removed anyway. So, it's better to just remove the entire engine!

Best regards, Daniel.