The best info comes with the head gasket! On the early engines like yours, MB always recommended hot re-torque.
The 12mm bolts are torqued in three stages cold; 40, 60, & 80nm. Hot torque is 90nm. You can multiply by 0.7 to convert to ftlbs if needed.

The 10mm head bolts torque in three stages as well; 20, 40, 50nm & the hot torque is 60nm.

Never put pressure on the cooling system until the HOT torque is completed.

Make sure to follow the torque sequence starting in the middle of the cylinder head, also lightly oil the bolts.

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