Biodiesel is ruining their cars. Which also shows how tricky buying a used one is.
Agreed, the chances for this are extremely high in IL, as the state provides huge incentives for the biodiesel suppliers and, by extension, equates to lower prices at fueling stations.
Apparently up to B20 is covered by MB warranty, but there are caveats including the need to monitor engine oil dilution and prolonged vehicle storage.
MB says use ULSD (B5) and not any other biodiesel. It also tries to say which blends are less bad but that's only if you have no B5.
That's how I interpret it too. Even the owner's manual on page 370 says it:
On another note, the N57 found in the 535D and 2014+ x5D found themselves with the cheaper CP4 fuel pump and a timing chain that has a tendency to snap (earlier EU models). The timing chain issue seems to have been resolved since, but that CP4 is in the back of the engine and requires engine removal if it goes bad. The M57 in the 335D was certainly plagued with emissions related issues, but the engine design is solid with quite a few examples now pushing past 200K miles on original turbos. Interesting also that the N57 reverted back to mechanical injectors, which is probably why you hear the more diesel type sound.
Like, racing slick bald.
Can you post a link for this claim?
The hitting a pole and not surviving claim. Yesterday I had my 535D at 140+mph so that claim has me concerned.
Did you check IIHS? Any questions on that? It says the driver gets crushed by the squashing frame. At 140 to 0 sudden stop the brain is mushed on the skull anyway. 55 stay alive. IIHS is 40mph. IIHS created a small offset test due to disproportionately lethal.
What do you think the steering column is pushing in means? The driver's compartment is crushing the driver. They say that. I'll take that as a safety fail. If you need more proof do some research about the lethality of these crashes in pre-IIHS testing and fortified cars. I was convinced.