Mercedes-Benz GLS-Class Timing Belt or Chain (2026)

The listed Mercedes-Benz GLS-Class engines have timing chains and are interference engines.

Scroll down to see detailed timing belt data for your particular model year of the Mercedes-Benz GLS-Class.

Check out the Belt Or Chain specifications for other makes and models.

2026 Mercedes-Benz GLS-Class - Timing Belt Or Chain

The listed 2026 Mercedes-Benz GLS-Class engines have timing chains and are interference engines.

Timing Belt Basics

The primary purpose of the timing belt or timing chain is to maintain the timing (syncronization) between the crankshaft and the camshaft(s).

A timing belt is made of a rubber compound while a timing chain is made of chain similiar to a bicycle chain.

A timing belt wears out over time and must be replaced at the manufacturer's specified interval. Timing belt failure can result in serious engine damage.

Although a timing chain will wear over time it is usually good for the lifetime of the engine but it should be routinely inspected.