BenzWorld Senior Member
Date registered: Oct 2005
Vehicle: W163 ML320, W220 S500, R230 SL600TT, R170 SLK230, W140 S500, More
Location: America the Beautiful
Mentioned: 3 Post(s)
Quoted: 48 Post(s)
Ha! I got quotes for the transmission service from two shops, both about $500. I changed front differential fluid for $12.00 and transfer case fluid for $10, and spark plugs myself for $77. But the rear differential, the exhaust pipe was in the way so the plug couldn't be reached. My oil change was about $95 with a Mann oil filter and 9.5 quarts of Liqui Moly 5W40. Crazy to pay people to do things that you can do yourself! I learned that 15 years ago with my first Mercedes. An indy wanted to charge me $200 labor to change the spark plugs, I found it very easy with only 8 of them and simply remove two screws that hold the coil, then there's the plug. My check engine light was on before I changed the spark plugs but the engine ran perfectly. After changing the plugs, it came back on, I doubt it has anything to do with the plugs. I don't recall the numbers for the codes but they corresponded to rich mixture left and right banks, and errant data from the mass airflow meter. So, I believe that may need cleaning. There is a spray cleaner product made just for those, you don't want to clean them with any other product. That said, mine couldn't run any more perfectly. But soon I may tear into it and access that MAF and clean it. It's the part that the air cleaner housing mouth attaches to with its round mouth, once in there I think it is easy to remove, clean and put back. We will see !!! I don't have an SDS, all I have is a generic code reader I got as a Christmas gift! So I am guessing either MAF or possibly an O2 sensor?? I am glad my suspension seems to be in great shape. I once owned a 1996 W202 C220 that acted crazy, RPM all over the place, engine dying.... cleaned the MAF and it was Perfect after that. I still have the can of MAF cleaner that I used...
Last edited by tonylinc; 08-01-2019 at 11:08 PM.