'95 E300 DIESEL, '91 600SEL, '92 600SEL
Couldn't disagree more. Balance shaft issues, worn cam timers, timing chain stretch, tensioners, guides, coil pack failures, etc, etc, etc.I think once they got away from CIS-E and went to V-6's and V-8's that the drive train got more reliable/serviceable. But I'm a gasser guy and so cannot speak for the various diesels they used over time.
The only post W124 era engine that gets my vote of approval is the OM648, the last inline 6 diesel made. 200 ponies, gobs of torque, quicker than the gasser V6, etc, etc, etc.
And current gen AMG engines suffer issues like metal fatigue of the pistons (cracking/chipping), dropped valves, timing chains issues allowing piston to valve contact, among other major deficiencies. And used replacement AMG engines directly sourced from MB, with less than 100 miles on the clock go for around 35K just for the block rendering these modern tech marvels instantly "uneconomical to repair".
Sorry, but the Germans have lost their mechanical prowess which they used to be champions in. And they are the better ones vs. BMW, Audi, Porsche. They've all become strictly lease machines. Once the lease is up, turn it back in before the ugliness starts.
And on the topic of AMG, the current line of AMG is nothing more than a electronic retune of the standard variants. Gone are the days of hand building motors, except for the Pagani engine blocks, stress testing each motor before release, etc, etc, etc.