M274 and M270 are known for cracked pistons, particularly the early models. #1 and #2 is usually the issue.
MB definitely knows of this issue, they're common enough that even I have replaced a couple pistons in my shop. And always early models. One was a salvage title with 22k, and wasn't under warranty.
Do not let this go.
MB definitely knows of this issue, they're common enough that even I have replaced a couple pistons in my shop. And always early models. One was a salvage title with 22k, and wasn't under warranty.
Do not let this go.