As an old retiree I have to concur with the above sentiments regarding problems. I fell in love with these new sprinters but boy, why so many problems. Yes, many owners have no problems at all, or they are in a position where either it's expected or it's not a financial issue. At present I only drive a little Toyota panel van. No, it's not a Sprinter but should that make a difference. If one can bake a little party pie that tastes great, you can make a family pie just as good. Silly?. No not really. Reliability can be had if there is a will to do so. While no one complains and the vehicles keep selling, why should they (MB) bother?
While I'm am happy to divest my pension to buy a good vehicle, I expect to just get in, start it and drive it blind for the next 10(?) years. Why not? They are commercial vehicles after all, driven by all comers spinning the ringer out of them. That's why I choose to drive commercial vehicles, cars are worse. Not so long ago vehicles were reliable or at least easily fixed DIY. And are they really any better? economy is much the same, comfort is not the cause of failure, handling is not the failure, stuff that really benefits us is good like brakes and suspension is not the failure. No it's the electronics mostly. Apart from complexity I fail to see any great benefit by their inclusion.
And the concept that owners are fools, so lets take the maintenance out of their hands. Modifications? hell why would you want to do that. We are the Lords you're just a customer. _ I had to add the last bit