Gas engine
1. Tighten the intake manifold bolt firmly 20 Nm (BP engine - DOHC: 45 Nm).
2. Tighten the exhaust manifold bolts with force 20 Nm (BP engine - DOHC: 45 Nm).
Diesel engine
1. Tighten the bolts of the intake and exhaust manifolds in the indicated sequence from 1 to 10 with a force 25 Nm.