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Great information, SDH. I was unaware that the PVC system had an oil-and-air separator. As for the carbon buildup on the intake valves, I've been quite worried about it. The engineers at Mazda are absolutely fantastic. Their automobiles are top-notch.

I understand now, so thank you.

After making the change from 87 octane to 89, I could feel a significant improvement in performance when accelerating from off-throttle. Same petrol station. The mileage on my 2.5-liter non-turbo engine is 45k. Has anybody else had the same thing happen?

This is probably just a rhetorical question, but if you don't reject it, you'll either be left without air conditioning (which is likely also used to cool the traction battery) or you'll have to pay to have it fixed.

I appreciate the thoughtful feedback you've given. I will make an appointment for our Stonic to be serviced as soon as possible. Plus, I'll go with a little before the anniversary. The suggested service window, which is 30 days before or after the first registration date (subject to the mileage rest...

At the tail end of April 2025, our brand new Stonic was initially registered. Everything is going swimmingly thus far. The vehicle is in perfect working order. Our total mileage thus far is 4,500 miles. Our company has a service plan. I was wondering if anyone knew if the KIA service window was one ...

Did any of the individuals seeking possess authentic online Mercedes diagnostics? If not, they cannot reprogram it to see if it is a head unit malfunction. The display code is peculiar, but without the vehicle, I cannot ascertain the source of the problems.

I apologise for the delay. Numerous issues may arise with this; what you are saying could indicate a failure of the head unit if it has lost its setup. You should visit a Mercedes dealership to determine whether they can reprogram the head unit and ascertain whether that resolves the issue.

I envy both of you; I should have remained at the dealership to acquire a MY2026 instead of opting for a MY2025 in June this year, following deception by a dishonest salesman prioritising his own interests over those of the customer.I will acquire a MY2026 sooner rather than later, as it appears the...