Turbocharger Installation

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:
Exhaust manifold bolts with high loosening torque need to be disassembled last to prevent bolt from breaking. Due to the relaxed system (when all other bolts are loosened) the manifold can shift a little and reduce the friction at the bolt threads.

Exhaust Manifold Gasket(1) - Install NEW
Exhaust Manifold and Turbocharger Assembly(2) - Install

CAUTION:

This is a self-retaining fastener joint that does not require thread locking compounds. Do not attempt to clean the threads with a standard tap. If a standard tap is used, damage to the joint threads will occur.

Exhaust Manifold Bolt(3) - Install NEW - Do NOT tighten.[9x]
Fig 1: Exhaust Manifold Bolt Tightening Sequence

CAUTION:
Refer to Fastener Caution .

Exhaust Manifold Bolt(1) - Tighten in sequence[9x] 20 N.m (15 lb ft)
Turbocharger Brace(2) - Install
Turbocharger Brace Bolt(1) - Install NEW[2x]

CAUTION:

Turbocharger Brace Bolt(1) - Tighten
1. First Pass: 4 N.m (35 lb in)
2. Final Pass: 25 N.m (18 lb ft)