- Mercedes-Mercedes-Benz C-Class: How to Change Your Oil
Step by step instructions for do-it-yourself repairs
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DIY oil change, step by step, with pictures
I have also asked them to update all their dealer/service literature accordingly so that the techs don't keep overfilling the 4Matics by an extra 1 qt.
Are they the only ones that make the dipstick tube adapter? by the way can some one tell me where can I order the original oil filter for the C300 sport (not planning to buy it at the stealership) and the cabin air filter? Please advice. Anticipated thanks.
http://www.amazon.com/gp/product/B00...ef=oss_product
I plan on buying the adapter for the dipstick from fluidevacuators. Does anyone know if this will fit my 2009 c300 4matic, as well as my 2011 c300 4matic? It would also be nice if this fit my 2003 mercedes sl500 r230 - I don't suppose anyone would know that either.
Lastly, I am a bit confused on how much oil I should put into my 4matics. The service manual on my sister's 2011 says 7.4Qt, but mine reads 8.5Qt. Someone mentioned above that this is an error. However, I feel that that error is a bit too important to simply mess up. Has anyone confirmed this in either direction, I would hate to put too little oil back in.
Lastly, is the adapter for the dipstick tube a 3/8" outlet?
Anyway, start with pouring in about 7 qt. Start the engine, run for a minute. Then stop it, wait, then check the oil level. Then add oil as necessary until you get to full.
Last edited by Pete7874; Nov 24, 2010 at 09:58 AM.
I plan on buying the adapter for the dipstick from fluidevacuators. Does anyone know if this will fit my 2009 c300 4matic, as well as my 2011 c300 4matic? It would also be nice if this fit my 2003 mercedes sl500 r230 - I don't suppose anyone would know that either.
Lastly, I am a bit confused on how much oil I should put into my 4matics. The service manual on my sister's 2011 says 7.4Qt, but mine reads 8.5Qt. Someone mentioned above that this is an error. However, I feel that that error is a bit too important to simply mess up. Has anyone confirmed this in either direction, I would hate to put too little oil back in.
Lastly, is the adapter for the dipstick tube a 3/8" outlet?
I tried a MityVac, didn't like it either. I went with a 12V powered electric pump unit from Jabsco, designed for marine applications, but it works fine. Make sure the engine oil is warmed up before suction is applied.
My question is, since plain jane 5w40 Mobil 1 synthetic isn't available, which is the lesser of two evils. ESP or 0w40? I would assume 0w40. Being that it rarely gets above 90 degrees fahrenheit in NY, wouldn't 0w40 be just as good, if not better because I get more cold starts, which it protects better against vs 5w40. Also, I should expect better gas mileage as well?
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My question is, since plain jane 5w40 Mobil 1 synthetic isn't available, which is the lesser of two evils. ESP or 0w40? I would assume 0w40. Being that it rarely gets above 90 degrees fahrenheit in NY, wouldn't 0w40 be just as good, if not better because I get more cold starts, which it protects better against vs 5w40. Also, I should expect better gas mileage as well?
Most dealerships will put in your car 5w-30 motor oil when you take it in for service. The reason being is because they can purchase that type of oil in bulk (50gallon drums). I use 0w-40 oil because I do my own oil changes. 0w-40 should be better than 5w-40 motor oil for cold starts. I can't tell you which is gets you better gas mileage because I've only used 0w-40. For reference sake, I used to get 28-30 mpg on the C350 going 70+ on the LIE from Brooklyn to Riverhead.
Last edited by I am Jeff; Nov 30, 2010 at 12:19 AM.
The MPG thing was just theoretical. Since its thinner, I would assume less friction thus more power and fuel economy (negligible of course).
Plus, I got a 10% discount from a friend that works there, so I got it for just under $50, plus the $15 I paid for the OEM Mann fleece filter. Brings me to $65 for the oil change, I think I did pretty well.
Also, I can't find the OEM Mann, and can only seem to locate one called TYC?
The only thing I can think of why one would want to replace the cabin filter is the fact that it's activated charcoal. With time, this charcoal probably becomes less effective at neutralizing odors...
Plus, I got a 10% discount from a friend that works there, so I got it for just under $50, plus the $15 I paid for the OEM Mann fleece filter. Brings me to $65 for the oil change, I think I did pretty well.
I just phoned my dealership, they said that they carry 5w-40 for gas for 7.37, not bad at all, plus my father just got a $100 gift card for that dealership in the mail for free. But what I am thinking, is that I read the back of the bottles with ESP (emission system protection) it says its for diesel and gas and conforms to 229.51 MB approval. I'm going to check out the bottle my dealer sells and says is the right one and see if its the same thing. If it is, then I can get a gallon (4 quarts for around $21).
Last edited by jctevere; Nov 30, 2010 at 06:15 PM.
I just phoned my dealership, they said that they carry 5w-40 for gas for 7.37, not bad at all, plus my father just got a $100 gift card for that dealership in the mail for free. But what I am thinking, is that I read the back of the bottles with ESP (emission system protection) it says its for diesel and gas and conforms to 229.51 MB approval.
There is also another M1 variety: 5w-40 Truck&SUV, sold at Wal-Mart and other places, but that one does not carry any official MB approvals.

The oil filter is Mann Fleece HU718/5X. I have found this price to be pretty good, they also sell a lot fo 10 for pretty cheap too! http://www.fcpgroton.com/product-exe...008-2010+(Mann)
Don't use M1 5w-30, some dealers just use whatever. Only use 0w-40 or 5w-40 (if you can find it where you live) that doesn't have ESP additive for diesels. Conforms to 229.5 spec, not 229.51.
http://www.handsontools.com/Assenmac...nt_p_2716.html
There was no way I could have unscrewed it by hand. Mine was on so tight, I stripped a couple of plastic wrenches from local auto part stores before I got this metal Assenmacher one.
It is definitely an instore deal. Just click the current circular and you can see the deal. I bought like 30 quarts of oil last time when they ran that promotion. Cleaned the store out. lol
Last edited by I am Jeff; Dec 1, 2010 at 03:27 PM.









