Table 1 shows one common engine and engine cooling related problems of the 2007 Mercedes Benz R Class.
| Problem Category | Number of Problems |
|---|---|
| Check Engine Light On problems |
While driving car the check engine light came on and started running very rough. I took it to the dealer where they told me it was some sort of balance shaft/cam gear problem. They said it was a terrible design flaw that affected many, many cars. They said driving it was risky.