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Kia Cerato engine pinging

Asked by Kevin Henshall

For about a year, I have been experiencing engine pinging in my 2012 Kia Cerato. It occurs only once the engine is warm and when under load, such as going uphill or accelerating quickly. I have taken it to two Kia service centres a number of times and both claim that there is nothing wrong with the car, and the problem is poor quality fuel. Kia recommends that the car should run on at least 91 RON petrol, and I have tried using both 95 and 98 RON petrol from different petrol stations in different areas, and while the pinging is less noticeable, it is still present. Kia has told me that the knock sensor is working fine. Kia's inability to resolve the problem is frustrating. I am at the point of taking the car to a non-Kia affiliated mechanic to get an independent opinion. Do you have any other suggestions?

Answered by CarsGuide

8 Jul 2016 Graham Smith

It should run on 91-octane fuel without pinging; the knock sensor should ensure that it doesn't occur. Running it on higher-octane fuels makes it less prone to pinging, and again the knock sensor should have it running on the edge of pinging without actually doing it. I would keep the pressure on Kia to fix the problem, and at the same time get the help of an independent mechanic.

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