Hey guys how often do you change your oil on your w220's? I got 125k just wanted to know how often I should change it.

 

I've always done 3 months, 3000 miles even for vehicles that can supposedly go longer. Refer to your manual for what Mercedes suggests.

 

According to the Mercedes Service Manual and Mercedes WIS, services "A" and "B" are always 13,000 miles apart. So oil should be changed either once a year or every 13,000 miles. 0w40 full synthetic of course.

I prefer to follow what Mercedes recommends for oil change intervals. I guess it's up to the owner if they'd like to follow that advice.

 

I've followed that on my 2006 S500 with no problem. I'm interested on why this changed from 10K to 13K after 2005 though.

 

Its every 5k

 

Thanks guys I think every 5k is safe because my car does have 125k.

 

if you are using synthetic oil, As MB recommends, you are wasting your money changing at 5k increments.

It is far more important to use the proper oil, than to change at 5k miles. The recommended MB interval when using the proper oil is 10-13k miles

 

+1

UNLESS you are a road racer, then I change it every season. Note: I would HIGHLY doubt ANYONE here is racing their W220

 

My S55 is new to me, but in ten years of owning BMW/Audi and now MB, I have always changed the oil twice a year, or about every 5k. I use my regular indy mechanic for the work, as opposed to an instant oil change place. I figure it can't hurt to have the mechanic look at the car regularly in any event. It's not like a major expense.

 

If you want to know when to change the oil on your car with your specific driing style and motor conditions google a place called blackstone labs. I've used them for years to determine the health of my oil and motors.
The last sample I sent them said I could run for 15k between changes and still have plenty of lubrication life left in the oil. My truck on theother hand can only run 6k per change

Worth a look, plus when I trade in my cars I can hand over a lube test that shows my engine is healthy which is a great way to get top dollar on your trade.

 

yes, blackstone oil analysis routinely shows MBs with synthetic oil to have no problem with 15k mile intervals

as noted above, if you are racing, you want to change more frequently.

also, if your aftermarket warranty contract has more stringent requirements (some require every 4 months/4000 miles regardless of factory recommenation) you MUST follow it to avoid denied warranty claims

 

Babyman1737 said:
According to the Mercedes Service Manual and Mercedes WIS, services "A" and "B" are always 13,000 miles apart. So oil should be changed either once a year or every 13,000 miles. 0w40 full synthetic of course.

I prefer to follow what Mercedes recommends for oil change intervals. I guess it's up to the owner if they'd like to follow that advice.

CarboyS asked:
I've followed that on my 2006 S500 with no problem. I'm interested on why this changed from 10K to 13K after 2005 though.

I did a bit of research a little while ago on this exact same item. My MY02S500 was manufactured during MB's 229.3 spec. Later (I think around 2005) MB issued a new oil spec, 229.5. When I read the specification and my memory may be jagged on the exact mileage, the 229.3 was rated at 13kkm with a regular paper filter (mb). Using the 229.5 + the special wool filter (again mb) could extend the exchange limit to 20kkm. I'm using Castrol 5w-40 which is rated to 229.3 at the FSE calculated change requirements. This was confirmed acceptable by the local MB dealer parts manager.

Maybe Eric could expand on this for us? especially if I've been lied to.

Tower

 

I prefer 8K or once a year, whichever comes first.

 

I go extremely short trips, so I end up with a lot of condensation in the oil, so I change once a year, about 4k miles.