Description

A coolant radiator reservoir is 4M0121405AG, part number for Bentley. To prevent the engine from overheating, the coolant is pumped through the radiator and engine. Additionally, the reservoir aids in keeping the system’s coolant level at the proper level.

In the engine compartment, next to the radiator, is where you’ll find the coolant reservoir. Usually, it is constructed of transparent plastic to make checking the coolant level simple. A cap on the reservoir helps prevent the coolant from evaporating or overflowing.

As a crucial component of the engine cooling system, the coolant reservoir needs to be routinely inspected and maintained. The reservoir needs to be changed right away if it is broken or cracked.
This car part is suitable for the following models:
Bentayga (2015+)