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Oil Change Surrender! E350

75K views 56 replies 26 participants last post by  mallig  
#1 ·
i spent nearly 2 hours today working on my oil change.... i change my own oil for many other cars but today i learned the e350 is just not a pleasant oil change experience.

First of all, the car is so low off the ground (sport package) that removing the bolts for the undertray takes more effort and contortions even with the car jacked on one side. Then once removed i had trouble locating the drain plug, absolutely confused locating at first that i also ended pulling out the front skid (protection plate).

Finally once located the drain plug, i concluded that the location/orientation of the plug wont allow as much oil to discharge so i decided to put things back, taking another 30 mins as getting the screws aligned for the engine tray was not simple as the last few were tough.

Now I know why there are so many posts of topside draining vs. Bottom plug drain..... I wondered and now i know. TOPSIDE all the way!!

Posting this note for comments on my own self incompetence but also to warn other newbies. FYI, i service all my other cars for oil, trans, brakes, etc. Never really touched this E350 until today after warranty expired .. Actually replaced air filter with K&N and filled washer fluids just fine.
 
#2 ·
Yes top side is easier but I drained the oil 3 or 4 times and outside of placing a deflector to channel the oil my 4M, the change was relatively easy. I'm not sure what you're talking about when you mention aligning the screws on the engine tray!! It should be as simple as removing the bottom plastic shield, loosening the oil drain bolt and let it drain. If you have a 4M then place a shield to deflect the oil from the fron suspension member.
 
#4 ·
Changing oil from top its easy and you wont get dirty or any oil spills. From bottom its easy as well its just requires little bit more work. If you think its hard changing oil in this car then i wouldn't recommend doing any other work on this car.

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#5 ·
Never one to surrender: I purchased extractor and couldnt believe the SLUDGE that came up! The fluid was so dark, my w123 rear diff oil after 30k could only be how I compare. Goes to show you must do things yourself at times.
Only problem is that i could only find 5-30 mobil 1 oil this (sunday) as preferred 5-40 out of stock. Now done and cant wait to see how trip comuter mileage compares now.

TOPSIDE flush again is my reco to anyone. Actually extracted 8 qts. Which is the best yield i expected with this method.
 
#7 ·
I have not found it difficult at all to do the oil on our E3504M, though the drain plug location does indeed cause some splash onto the crossmember, and yes, you have to jack the car up and get it on the stands.

What are people using for the "topside" extraction method? And is there any hard data that his does a better job at getting junk out of the pan? I am getting to the age where I don't mind an excuse for not rolling around on the garage floor if I can avoid it . . . :rolleyes:
 
#8 ·
I use something like this

Image


I only have shop tales that it does as good a job as draining through the pan. If you are really concerned you could alternate between the two. Using an extractor makes it a very simple job. Be thankful the E350 has a nice dipstick as more and more modern cars do not. I use the extractor on the E350 and my two W124s. The pic is the mityvac on Amazon, the nice thing it holds 8 qts although I usually stop and empty it during the extraction and this finish by getting the last qt or so.

I don't miss rolling on the garage floor, you won't either
 
#9 ·
For me it was a case of being the simpler route. The locations of the engine undertray bolts and the drain plug itself would take 15 mins at least since you need to jack car high enough then support with stands. For topside drain, simply reove dipstick, insert tube from extractor, then pump to work triceps! Took out 8 quarts which is only shy of max by half qt.
For my w123, i dont even need to raise car as bolt is clearly visible and raised enough for drain, so in less than 2 mins im draining away.
 
#11 ·
Top Side Oil Extractor is the only way to go.

I was apprehensive at first when I heard about the "Top Side" oil extraction. Believing that some oil would get left behind. However, if you think about it. To get the oil out of the pan, you have to lift the car up. By doing so you trap an amount of oil in the pan. So either way you stand a chance of leaving a small (Very small amount) amount of oil behind. That should be fine. It will get dissolved in the vast amount of new oil and any impurities should get trapped by the filter. Make sure to use the right oil and filter.

Good luck. A good oil extractor can cost you between $70 and $150. Invest in a good one and you will save money in the long run. Seriously!!!!
 
#18 ·
No longer available at Costco(too good of a deal), the same unit under the name Welbilt is available from northerntool.com for $100, which is $14 more than Costco if I recall. The Costco unit was a Thorsen but it is the same unit.
I do not recommend a manual unit, if you have an air compressor, it will do the work for you, there are no moving parts, it works on the Bernoulli principle.
 
#14 ·
Its off the website. I also bought mine there last year, but noticed that since then Costco is not selling them. Try Mityvac, those are also a great bang for the buck. Actually, you will probably find more people have those than the Costco ones that Roadking and I have. Both do the job nicely!

Also, you can get the oil filter off eBay for about $11 with free shipping. Surf around.

Good luck!
 
#17 ·
#49 ·
Noodles,,,Question on oil change

You know about my situation here in Panama,,,nothing is easy regarding parts or tools..
Reading about topside oil changes,,,,How about if I just put a 1/4 " plastic hose down the dip stick hole, then use my air compressor to put 5 t0 10 punds of air in the oil fill hole?,,,Whatcha think? Jim
 
#32 ·
Boat engine oil has always been changed like this. Stop by your local West Marine or boat supply store and get one of these.

Amazon.com: Liquivac Topside Oil Changer: Automotive

Dan
For what it's worth the Topsider is a piece of crap. I bought one years ago and it never worked worth a damn. Not enought suction. Bought a MityVac and haven't looked back. Used it on 5 different MB and it works like a charm.
 
#24 ·
From the looks of the oil changer on Amazon you insert a small tube into the oil dipstick tube. On my boat, there is a threaded fitting at the top of the dipstick tube (about the size of a garden hose fitting) which you attach the suction device. I have a mighty vac and suspect that a small tube is used inside the dipstick tube but wanted to be sure, and to see how others are doing it.
 
#25 ·
Yes the clear hose goes down the dipstick hole. Your engine is probably a Mercruiser with that fitting? You don't have to use it and I think you get more oil out with the clear tube.

Dan
 
#26 ·
Just want to report back. After removing the extremely black, close to sludge ol the dealer supposedly serviced 6k ago, I am getting nearly 420 mi to the full tank, more than 400mi as usual. i drive slightly aggressively too and almost always between 80-85 on highways. Now other difference is usng 5w-30 grade oil as I could not get 0-40 or 5-40 the weekend I did the extraction. Will keep this non MB spec in my engine for a few thousand miles before changing.
 
#28 ·
Read about the MityVac here then watched a few videos on it so I ordered the 7201 from Amazon . I'm a paraplegic and you can imagine the PITA it is getting under my vehicles to do maintenance. This should make things a lot easier.

Caught oil on sale at Advanced auto and bought 4 - 5qt jugs for just under $100. 2 Mann oil filters $10.00 (BOGO)

Waiting on a coupon to get a B/A charcoal cabin filter and 2 B/A main filters for $37.00

PM me if you want the discount info. on the oil and air filters.

As a new MB owner I'm glad to see general maintenance doesn't have to be expensive. :thumbsup:
 
#30 ·
Acually i find this 5w-30 oil starts up my 350 much quieter than Dealer supplied oil- which i question now and has been in my car for 6k miles. i did manage to get 0w-40 5 qt jugs at autozone but will use for my Porsche!
I'll risk going a bit longer with the non MB spec and hope I dont report a BANG in my engine soon.
 
#31 ·
I've been using the extraction method to remove my oil since I purchased the car (6 years ago). In the back of my mind I always wondered whether or not extraction removed all the oil. I have read a number of arguments against this method. Well, I now know for sure that extraction is very effective. Last weekend I replaced my oil level sensor, which required removing the lower oil pan sump. I extracted the oil first using the Mityvac, and when I removed the pan, I found that all but about 2 tablespoons of oil was extracted. There was absolutely no sludge at all on any of the engine components or in the pan.