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Does the Mazda6 have a timing belt or a timing chain and does it really matter? The current Mazda6 has a timing chain and yes, it certainly matters. Got two minutes? Let me explain.
First up, the current Mazda6 has a choice of two engines: a 2.5-litre four-cylinder petrol engine and a 2.5-litre four-cylinder turbo-petrol. Both use a chain and so does the 2.2-litre four-cylinder diesel which used to be offered on this model.
Now, a timing chain or belt has the important job in an engine of connecting the crankshaft to the camshaft(s) and controls the opening and closing of the valves which let the air-fuel mixture into the cylinder and the exhaust gas out.
Timing chains have been used in engines longer than belts, and they're considered to be better because of their strength and durability. Rubber belts are cheaper than chains to make, but they stretch and deteriorate over time, and need to be replaced.
In the case of the latest Mazda6 the chain is designed to be used for the lifetime of the engine – there is no periodic maintenance or replacement needed.
So, there you have it: the Mazda6 has a timing chain and that’s something to be pleased about.
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