Suction Oil Change
 

I’m changing the W124’s oil, while I lay on the couch. This has been my pampered life ever since I got a suction oil changer. No more jacking the car up, crawling on the ground like a subhuman, getting hot oil down my arm. Just pull the dipstick, feed the tube in, and go lay on the couch. Of course, it helps to have a car where the oil filter is changed from above :-)

I've never heard of that before. sounds excellent!

I sure could have used one years ago when I changed the oil on an ATV Quad bike. The sump plug was so corroded and rounded off I tipped the ATV upside down to get the oil out.

https://www.amazon.ca/Flo-09644-Fluid-Extraction-System/dp/B00GZKRI3G

Hmmm for a motorcycle too...maybe. I've stripped too many drain plugs so this may be nice to use. Although I'd still need to check the magnet periodically.

Which one do you have, John? I need to pick one up for my wife's Q3. (Did the oil change last year with a hand pump - what a PITA...).

I got one that is steel. “Top Sider” https://m.northerntool.com/shop/tools/product_390306_390306

You do have to pump the built-in pump to build the suction, which is easier than pumping up a bike tire, then put the tube in and walk away. I was swayed by it being old school steel. If I were to do it again, I might get one of the electric ones. More couch time!

Those are frequently used on boats with inboard engines, just hard to get all the oil out.

My son gave me one of these: https://www.amazon.com/Mityvac-7201-Fluid-Evacuator-Plus/dp/B0002SR7TC/ref=asc_df_B0002SR7TC/?tag=hyprod-20&linkCode=df0&hvadid=312104220456&hvpos=&hvnetw= g&hvrand=10309953910587052786&hvpone=&hvptwo=&hvqm t=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9031561&hv targid=pla-569065623780&psc=1

I used his to change the trans fluid on my Honda, but have yet to use it on the crankcase oil change. I still have to get under the car to change the filter. Mine is still sitting in the box unopened.

I have a friend that does all of his with a pump. I still do mine the old-fashioned way.

This is the normal way to do it on a 5.0L Jaguar XK(R).

Engine was designed for it.

I would be a little concerned about doing it this way all the time on an engine that wasn't.
What concentrates might be building up down there?

During my education at the University of Youtube, I learned that on the W124, enough oil is left in the pan when drained the normal way, that the suction method isn’t much different.

Thanks - the "Topsider" is actually the one I was looking at!

I 'spose that is what an oil filter is for.

That was my concern.

I bought one for use on the boat and Waverunners then figured, what the heck, I'll try it on one of the cars. Knowing what I typically get out of the drain plug, I'd say that any amount the Topsider left behind was negligible - likely measured in teaspoons.

_

You may not want to lay on the couch too long. As I recall, the W124 holds 6-ish quarts. Not sure how much your pump holds, but you may want to double check.

I have a air operated pump I pulled from a paint spray gun cleaner someone gave me. I place the hose right over the dipstick tube on my Mercedes W123's and it sucks all the oil out in less than a minute. You get more oil out this way than you do pulling the drain plug. And having the oil filter changed from up top. No need to jack up the car!

It holds a ton of oil. 7.5 qt! The Topsider will hold all that and more.

This is so convenient that I'd consider installing a remote oil filter if the stock one isn't accessible from above.

It does take quite a while for the suction to extract all the oil. More couch time! No honey, I can't do the dishes, can't you see I'm changing the oil?

I wish I could do that with the 911, but not recommended because of the complication of the oil tank and separate crankcase drain.

Which W124 do you have? I have a 95 E320 Cab (A124) as my daily driver.

The extraction has another plus.

You can get the oil really hot, and suck it out with minimal chance of getting burnt.

This is also a bonus, as suspended particles come out before they have a chance to settle .

With my luck the tube would get stuck in the filler tube.