Toyota Yaris - noises in the cooling system area

Data sheet
ManufacturerToyota
Vehicle modelYaris
Engine1.0 i (1KR-FE)
Year of manufactureup to 2017
SymptomsCooling system noise

Important safety note Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their work. The information provided on this website is intended for use by suitably qualified personnel only.

Noise at 3200-3500 rpm

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.


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