- Tried to make it not covered by my warranty. - They diagnosed my car, and told the warranty company that the issue was due to overfilling the oil. This made it so the warranty company did not cover the cost. I took it to the Mercedes dealership, they said the oil was not overfilled, my warranty covered it. Honest-1 quote was $2k, Mercedes Quote was $2.7k, but my warranty covered $1.7k from Mercedes. These guys shot themselves and myself in the foot by trying to put blame on someone. Do not use them unless you need cheap labor (since they don’t pay their staff enough).