WanderlustGuru

Greetings, Activating sport mode will initiate the engine automatically.

They need not be XL [Edit: for the MHEV]. The Toyo original equipment tires are SL rated with a load capacity of 107.

Your dealer is either deceitful or incompetent. Request a detailed explanation of how one of those tires fails to comply with Mazda's specifications.

My primary confusion is to the 4MATIC system, rather than the potential protrusion of the rims from the fender.

The new wheels with an offset of 33 will protrude 10mm more than the appropriate ET of 42 - 46.

Consider detaching the crankcase breather tube and operating the vehicle (venting the crankcase to the environment as was customary in earlier automobiles). Your assertion that the issue originates from the exhaust and beneath the bonnet suggests a potential pressure problem caused by a clogged PCV line. I am not quite certain of the configuration of these engines (I can investigate more), but in most cases, the crankcase breather will experience positive pressure during boost and negative pressure (vacuum) during idle. It seems that there may be excessive pressure in the crankcase, causing oil to leak from certain seals under the hood and beyond the turbocharger.

This strongly suggests that the swirl flaps are causing the vehicle to enter limp mode. During the first startup, the swirl flap actuator does a sweep to assess the range of motion. If it identifies a deviation from specifications, it activates limp mode, but the engine management light may not illuminate. The vehicle performs the sweep just at the first startup; so, when it is subsequently turned off and restarted, the engine reverts to full power mode. Scanning it should reveal the error related to swirl flap deviation. Thank you.

Affirmative

The timing chain has fractured and obstructed the oil pickup.

Thank you!

I have fitted the bearings according to the specifications in the provided link, however they are too tight. Engine block code: BBBBA. I suppose it is four green and one yellow.

Does anybody possess the bearing size for the aforementioned item, please?

In the absence of a credible cam sensor signal, the DDE will not initiate injection. Have you verified via the sensor aperture that the cams are moving when the engine is activated?

There is no need for the hostility. I do not question your expertise. I was unaware of the concerns, which is why I am asking these questions first. I have had the vehicle for little more than two years, have driven around 20,000 miles, and have maintained it meticulously; this is the first time it has requested AdBlue.

Thank you, everyone. The text states that "you keep the tank full," however @BENZE220AMG advocates for the contrary. I was unaware of the complexities associated with using AdBlue.