2016 X5 4.0D

[jameswright77]

The vehicle has 57,000 miles and experiences a minor shudder when accelerated aggressively in lower gears; a scan via Bimmerlink indicates gearbox error 440011, suggesting the gearbox is nearing the end of its lifespan, though no warning lights are illuminated.
When I operate the vehicle normally, it functions flawlessly; however, it only exhibits issues when I accelerate aggressively. I have scheduled a gearbox service for the end of September; will this remedy the problem, or might it necessitate an entirely new gearbox?

[Bluewhaleeee]

What is the method to ensure uniform tread depth on both axles of your tyres?

[jameswright77]

It is likely not the case; I am uncertain, as they all possess tread yet vary in brand and tread design. Predominantly all pre-owned components from the prior proprietor.
I aimed to evade expending £1000 on new or identical tires all around, in case it was merely a transfer case service. However, I have learned that tires play a vital role in the xDrive system.

[GoodBoyCar]

One should invest in quality tires initially; this expenditure enhances your confidence and significantly improves safety.

[LostintheSea]

Expense for a new transfer case along with four tires ?????.
The y x5 was equipped with a set of economical tires, all exhibiting uniform tread depth well above 2mm, which I maintained for two years without any issues.