I picked up this pump at a local auto parts store for $10.  It has a long extension designed to go all the way down your dip stick tube into the oil pan, you can then manually pump your oil out and into a waiting recycle container.  Very nice if you want to save some money on oil changes and don't have access to a lift or jack stands.  This item works best if the oil is warm, not hot.

Of course I run Mobil 1 oil in all my cars.  I use the 5w30 in my 190E because my Corvette uses the same.  Mobil has other oils more suited for older/higher mileage engines, so don't use 5w30 just because I did.  For filters, my preference is for the K&N.  Its hard to out do the OE filters, but the K&N has a bit better filter system in it (filters to 3 microns) and is easier to install (just need a socket wrench) and they run about $10 at the local auto parts store.





This is just a regular oil recycle canister which can be picked up for around $20 at your local auto parts store.  Your local auto parts store should also take your old oil for recycling.  One end of the oil pump goes into the dip stick tube, the other into this canister.  Pretty straight forward.





This is my OE Mercedes oil filter.  It requires a special tool for removal, pain in the ass IMO, I prefer the method employed by the K&N, all you need is a 1/4" socket wrench, we all have those laying around!





Here are the two filters side by side.  I won't waste allot of time playing up how good these K&N filters are and they are only a couple of more dollars than the OE filter.






On the 2.6l W201 (and W124) you really need to remove the OE air filter assembly, then you get easy access to the oil filter.  Be careful removing it though as you can spill allot of oil all over your engine if your not careful.  When installing your new filter, you take just a small bit of new oil and run it over the filter gasket before you install it.  Also, don't torque the filters down with gorilla strength, tighten them till their snug, then tighten just a bit more.


My local dealer charges $75 to change the oil in a W201 6 cylinder!  That's with normal dino oil also.  Six quarts of Moibl 1 cost me about $23 at my local Costco and the filter costs me $10.  The math is easy on this one!