However, sunroofs can deteriorate over time, leading to all kinds of problems, and the owners of more than 33,000 Mercedes-Benz models ... E-Class, and CLS vehicles, including models like the ...

The problems reveal themselves ... the piston skirts also show lots of wear. Mercedes used the M278 engine in various models, including some E-, S-, CL-, CLS-, ML-, and GL-Series offerings.

Now in its third generation, the Mercedes-Benz CLS serves to offer potential E-class buyers a more sleek and dynamic driving experience at the expense of some utility. The original CLS was among ...