I ask out of curiosity, which W211 diesel engine is the most defective? It would be good if it were quite often found in Polish models. Thanks in advance for your answer
They are not the most defective. The disadvantage of all can be considered the cost of repairs and the price of spare parts. Although it's better to fix a normal row than some V AMG monster.
They come with many engines and the same engines are also found in other Mercedes models. I have no idea how to connect the author's question to the W211 model. In general, from what I noticed, the V6 units are quite emergency, or Poles import a large amount with damage - I noticed following the ads when I was looking for a Mercedes ML.