A main dealer will use parts supplied from Mazda UK and will charge the recommended retail for that part. It’s something you have to accept if you use main dealer servicing.

It does seem pricy but…

What we don’t know is the diagnosis time and effort. It’s very easy to respond to this post and suggest that the problem took ten minutes to diagnose and the part twenty minutes to fit therefore you have paid too much.

We cannot know how problematic the diagnosis was and how difficult this part is to access and replace.

Remove the Vat from the bill and you seem to have paid (I would guess) about four hours labour.

Has the problem been fixed?

Is this a well known failure that you might expect a main dealer to be aware of?

Consider the other scenario. You could have paid someone to diagnose the fault and bought the equivalent sensor from a supplier. When your favoured garage fitted the component, it wasn’t quite the same part and the engine management light won’t go out. You pay them to remove the part, send it back…etc. It does happen.

Sorry if I sound unsympathetic, but that’s modern motoring for you. Now if you had a French car like mine, the usual suspects on this forum would be bleating on about how you should have bought Japanese!

I would look at it this way. 67000 miles; if it’s the only failure the car has had, that’s only about 1p per mile for “non-wear and tear” component failures. It could be worse.

The Mazda part probably comes from Bosch Japan! Yes,Bosch has factories in Japan.