Hello Leigh Sr., I have a 2015 W212 E350 Sport M276 RWD Sedan, it's got 45,000 miles on it and was just informed both my front timing covers are seeping oil. It does not seem serious now but I want to see if I can repair it myself as I was quoted almost $1000 by independent shops (Dealer wanted $1400). I am willing to buy all the tools needed but was wondering if the intake plenum needs to be removed to gain access, I see a lot of other parts that will need to be removed as well to gain access but I think I could manage. Any tips to doing this job? what is the best way clean off the old sealent? Or if you feel this job is not for the beginner then I will take it to a shop. I know that is a lot of infomation I am asking for but any tips and equipment I will need would be most useful. Cheers, Garrett Hu