Hello-

I have a 2021 GLC 63 S with 2k miles on the clock now.

I’m considering getting a “break in” oil change (even though Mercedes does not mention one in the break in/service information).

In addition, I’m wondering what the consensus is on oil change frequency (the 10k recommended interval seems long) and any other recommended maintenance.

thanks!

 

Well, you have opened up a can of worms here. Lots of opinions on this issue.
IF you ALWAYS want to get the oil changed at the dealer, and MONEY is not an object (meaning you are willing to pay the dealer every time) AND you plan on keeping the car to high mileage, then:
I would pay them to change it now.
Modern engines have good tolerances from the factory so the old "true story" that metal shavings are shed in the first 2-3K miles of a new car is NOT quite true as much these days.
However. If the money is not an object, then BETTER SAFE THAN SORRY!

Secondly on the oil change intervals. How hard you drive the car and the heat it suffers matters on the interval. If you drive the car as if you STOLE it (lots of WideOpenThrottle) then the best idea is 4K or 5K changes. 10K is OK only if the car stays cool a lot and is never pushed super hard.

I would not think that you need any other maintenance at 2K miles.

Happy motoring!!

 

I've always done the 1 year or 10,000 mile oil change interval on my GLC and my previous 3 Audis, which I kept 7 years with no issues. German car engines hold more oil than American or Japanese engines and use 100% synthetic oils as well. For example, the AMG 4.0 biturbo holds over 10 liters of oil and a change takes over 10 quarts typically. My last car, the Audi S6 took about 11 quarts to change on its 4.0 TT V8. The S4's blown V6 took over 8 quarts to change. Even 4-cylinder German engines typically take 5-7 quarts per oil change, so the greater volume of oil and the use of synthetic as required by the VW or MB spec oil allows for the longer service interval.

 

I change every 10k on my non-tuned cars and every 5k on my tuned ones.

 

I do mines at 5K. No scientific reason. I just feel better about it. It only cost me $50 and half an hour of my time.

 

If you want to truly know, spend the $35-something dollars with Blackstone Labs. They send you a sample kit to collect the sample (it's postage pre-paid), and you will get a report that includes information on break-in, oil shear, filtration quality, etc., etc... and they often will recommend going longer or shorter intervals based on how well the oil is performing for you. While some engines are sensitive to oil type, brand, etc., others are not and would be fine running on sand, lol. In all seriousness, how you drive, in your environmental conditions, level of engine wear, even how long you let the car warm up when you start it, and so on plays a role in how well an oil works for YOU, and what might work great for you, may not for someone else. My 8 mile country road commute to work with a single stop sign, is going to be WAY different than some one in a different climate, with a car that has a ton of miles, like to let it warm up 20 minutes, and then drive an hour in stop-n-go city traffic is going to give different results.

All that being said, the recommendations they give are generalizations and not detailed... but you can always follow up with questions. They will say things like 'everything looks good, change the oil sooner, try going another 1,000 miles before your next change, check your air filter and airbox seals, etc...' but they won't say 'try brand/weight XYZ'. Sometimes they will say 'we see best results on these engines with oil ABC', but not always.

As far as collecting the sample, the kit they send (free) is pretty simple. I've done it myself and had other shops take a sample for me during a service; get the engine hot, collect sample mid-pour. Seal it up and drop it in a mail box. Five-to-ten business days later, you've got your report.

 

I believe the "break-in" factory oil is not the same full synthetic that will be used for the rest of the vehicle's life. It's probably not full synthetic or synthetic at all, in order to allow some friction/break-in to occur. I'm not an MB expert on this topic, but this was the case for my Volvo's.

Understanding this, my practice was to change the break-in oil by 5K miles, though I missed the boat on my new GLC 43 by waiting until 9K.

 

Is the rear differential fluid change still mandatory after break in or is it just recommended?

 

My understanding is that the rear diff oil change is not required or recommended on the newer rear ediff.

 

I recently got my 2012's oil changed at an indy shop for 192 dollars! I'd imagine the dealer charges more. They would be glad to relieve you of your money for some oil.

 

Never heard of changing at break-in, well unless you just completed the Paris-Dakar rally. 😉 Seriously, I believe MB prescribes every 30-50K miles.

Thanks for the reminder though!

 

My glc and amg user manuals have nothing on service intervals.
The only information i found is Service A/B. MBusa has "AMG 2000 break in service" listed under express service, its all very vague.
Is there an actual service interval guide?
And yes i found somewhere on MBusa that the transmission fluid is changed at 30k lol

 

Quite honestly the car tells you when you are due for which service by mileage or time and whatever else it factors in. I used to do halfway oil changes at 5k miles since I drive my cars relatively hard, but quite honestly it's a waste of money. Lots of old school opinions out there with no real world evidence to back it up. The engines I did it with also burned oil, are you listening Audi. The AMG V8 doesn't burn oil. Today's synthetic oils don't require that anymore and AMG doesn't use break-in oil. BMW M I believe still does and explicitly requires a service after break-in. The nanoslide coating on the cylinder walls has unmatched tolerances these days, so if you have metal shavings in your oil, then you have bigger problems.

The rear locking differentials used to require an oil change at 2000 miles, but that is no longer the case, even though it's still stated in the US owner manuals. They changed the friction material of the clutch pack during the 2019 production run. You can still do it as a piece of mind. I did it on my C63S, even though I had it confirmed by AMG Germany that my VIN no longer requires it. The rear differential still needs regular fluid changes, but I believe the interval is every 30k miles. The transmission also requires fluid changes. It's all part of the service schedule. First two services are A and B, then A1 and B1, then A2 and B2 and so on. They each come with a list of items to take care of.

 

The word is "shouldn't" my GLE63s burned a quart every 3 months and Mercedes said it was normal.

 

Haha...yeah that's the standard response these manufacturers have put forward for years. My Audi S4 two cars ago burned a quart every 1000 miles. My RS5 after that was better and only burned a quart every 3-4k miles. Audi still maintains that 1 quart per 1000 miles is normal. Those cars were all not keepers, IMO. If your GLE burned that much oil I'd say good thing you replaced it. Some oil certainly gets burned, that's normal as it makes it past the piston rings or through the crankcase ventilation system into the combustion chamber, but IMO it should never be as much that the oil level reaches the min level between regular oil changes. I know past AMG engines such as the 6.3l V8 were known oil burners, but it's refreshing to not have to stock up on oil in my garage anymore to regularly top it off or drive to the dealership for a free top off.

 

Yes sir and that was before it was tuned....

I got nervous secondary to a small ticking noise, almost like a lift would make. Between that and the oil, plus the car was just too big for me and difficult to make it fast, it was quickly traded in for a M....

 

Anyon know the part number to the 2021 amg glc 63 engine oil filter and the oil pan drain plug?

 

I think one of these:

Mercedes-Benz GENUINE MERCEDES Engine Oil Drain Plug

Part Number 0009909518 Manufacturer GENUINE MERCEDES Manufacturer Part# A0009909518 Interchange Part# 0009906708, 1780140300

Genuine Mercedes Oil Drain Plug

P/N: 0009909518 Genuine Mercedes
Cross References:

• 0009906708
• A0009909518

Mercedes S63 AMG, E63 AMG S, GLC63 AMG, S560, GLC63 AMG S, AMG GT 63 S, Maybach S560, AMG GT 63

Oil filter:



SKU: MER-2781800009

Mercedes Engine Oil Filter - Genuine Mercedes 2781800009

CL63 AMG, CLA45 AMG, CLS63 AMG, CLS63 AMG S, & more

 

Thanks!!

 

I'm at 4800 on the odometer right now..... srsly considering getting the oil changed.

 

How serious?

 

Taking it in tomorrow..... can't hurt right?

 

A 200 dollar oil change

OT: are you affected by the smoke or drought in any way??