Toyota Yaris - noises in the cooling system area

On the vehicles mentioned above, unusual noises may occur in the area of the cooling system at an engine speed of 3200-3500 rpm. Checking the coolant level should be the first step. If there is sufficient coolant in the system, a faulty coolant thermostat may be causing the noise. This should be replaced with a modified variant (9091603153). The cooling system must then be refilled and vented in line with the vehicle manufacturer's specifications.

Reprinting, distribution, reproduction, exploitation in any form or disclosure of the contents of this document, even in part, is prohibited without our express, written approval; indication of the document source is also required. The schematic illustrations, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.