When troubleshooting problems like Digbys, it is important that you don't assume anything. Don't assume what the mechanic said is true. Don't assume that the parts you got are good (even new ones). Don't assume what someone told you on a forum is accurate. Don't assume the results of one test is all you need. What you need is corroboration! In this video I will explain and demonstrate what I mean. Link to compression test kit: https://mercedessource.com/store/search?keys=compression
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