CheckOrHold

The past 2 oil changes I've had done on the car was at a european car specialist. They put in Mobil 1 0w30 and the temperatures seemed normal. However I did get overheating on the roadcourse after about 10 minutes into each session, not sure if that's normal.
After this last oil change a few days ago, same oil, I noticed the engine temperatures have increased more quickly and leveled out at a higher temperature. Before it would sit around 100C, now it sits at 105C when in comfort driving to/from work.
I plan to take it to the road course again next month and it's worrying me that there could be something wrong. The Merc dealer recommends 5w40. Should I get it changed to 5w40 or is 0w30 fine? Also are there any better oils for when I take it to the road course so it doesn't overheat as quickly?

skratch77

Sorry but you are stupid if you put 0w30 in your car...and tracked it with it.

Your whole top end is probably done also. You basically put water in there. Get that oil out of the motor asap.

Jasonoff

I will give you $500 for the engine.

deadlyvt

“A European specialist” that puts the wrong oil in a car I would suggest isn’t too much of a specialist

CheckOrHold

Thanks for answering my question. I'm working on getting it changed out. And no, the car isn't ruined. It's still running as it was before the previous 2 oil changes just a bit warmer now. And I change my oil often so it hasn't gone through a load of miles with this oil.

skratch77

Keep in mind how soft our cams and lifters are...best to open up the valve covers to inspect them.

G_Money

How long have you used the 0w30?

sventastic82

If you run thinner oil and the temp went up, that is not a good sign. Usually thinner oil reduced the temp considering it provides the needed lubrication.
In your case I would say the thinner oil cant provide the lubrication your engine needs and the additional friction is driving the temp up.

Good luck.

Mort

Normal cruising temps for my car are 105-106C and I run 5w40. I imagine your local ambient temps are hotter than in Saskachewan as well. MB recommends only 0W40 or 5W40 for the M156 as per your owner's manual and the online Bevo specs. The facelift cars oil temps rise very quickly when the car is pushed hard and often reach limp mode in just a few laps on the track when driven aggressively.

https://bevo.mercedes-benz.com/bevolisten/229.5_de.html

https://bevo.mercedes-benz.com/d/d/de/Spec_223_2.pdf
See the note regarding oil viscosity requirements for the M156.

CheckOrHold

Thanks, I went back and they changed out the oil to 0w40. They said they can no longer get 5w40; their supplier no longer carries it because 0w40 is practically the same thing? Idk. I'm going to let the car sit overnight and see how the temps are going to and from work. Worse comes to worse, I'll go to the AMG dealer service department and see if they can get 5w40.

Mort

Just remember that Mobil 1 is not the only acceptable oil and 5W40 will be available in one of the other brands with 229.5 certification.

BLKROKT

You’re fine with 0w40, don’t overcomplicate things. I would throw a couple bottles of MOS2 or Ceratec in though. And hope for the best...

HLG600

Why on Earth would a "European Specialist" shop even stock Mobil 1 0W-30 to begin with? It meets Ford/GM specs only and there is no application for it on any European car.

Then there's that nonsense about not being able to stock 5W-40. FFS...getting oil changes right is the lowest possible hanging fruit there is for a shop.

CheckOrHold

I agree, I was quite upset. They were telling me that 0w30 is listed by Mercedes as safe, but I couldn't find anywhere where it actually said that. Either way, partly my fault for not specifying. I assumed because they were a Euro shop. Got it changed out to 0w40 though so hopefully we'll be good. Looking into getting a ceratec additive as well.

roadkillrob

Delete, missed it up top.

HLG600

Hmm, let's dig into this a bit.

Full Bevo 229.5 list, updated as of June 2020: https://bevo.mercedes-benz.com/bevol..._en.html#close

Mobil 1 FS 0W-30 is listed as meeting MB 229.5 spec. However, this is a) a very different oil than what is available to consumers in the US and b) 229.5 in general is a very broad spec.

Best case scenario, that shop ordered the European version through a commercial vendor and is not completely inept. In any case, however, they were lazy about things as the M156 requires additional consideration.

Bottom line is that this shop took a shortcut and the result is that your engine was exposed to unnecessary risk.

Jasonoff

The shop owes you a new engine if you end up having issues. Not to be a negative Nancy but there's likely damage excessive premature wear done.

It "still running as it was before the previous 2 oil changes" is NOT an indication a problem. For example, having a lesser weighted oil could have multiplied your wear mileage by 5. If you went 5k miles between changes it's more like 50k miles. Would an engine with 50k miles still run as it did with 5k? Yup, but in theory it sure won't last as long under identical conditions.

CheckOrHold

I changed it after 2,000 miles. Assuming there may have been excessive wear on the engine, are there any steps I can take to somewhat remedy it?

Jasonoff

You only went 2k miles on 2 oil changes?

No, there's not much you can do other than putting in the proper lubrication and maybe an anti wear additive like what was mentioned.

CheckOrHold

Yes. Got oil changed from B service at Merc dealer after about 3K miles. For some reason the engine was telling me to add more oil after about 3K miles so I went to a 'specialist' to get it done thinking the dealer doesn't know what they're doing. After the oil change at the euro car specialist shop I no longer got an oil message and everything ran well assuming they used the right stuff and also explaining to them it's an AMG and all that. Then earlier this week I had time off during the week so I figured I'd get another oil change since it's a bit dusty out here this time of year. The next day it appeared the oil temps seemed different so I checked my invoice to see what they used and was surprised to see it was 0w30 so I posted this topic to see if anyone knew anything about 0w30 because I hadn't recalled seeing or hearing anywhere that that is a safe oil to use in my engine.
I don't believe the engine temperatures were actually abnormal, it's just getting hotter out here and I was just being a bit over-concerned (although thankfully I was because I found out about this oil they were using was unacceptable). I contacted the previous owner of the car to see what the normal operating range was since he had it in Florida where it's even more hot than here and the range he said matches the current range it's operating in now.

It is a struggle to find a good shop to take care of my C63 out here in the 'midwest' without having to drive 150 miles to/from Dallas. AMGs and Ms are pretty much unicorns out here. Most shops refuse to even look at my AMG. Hopefully just 2 more months and it'll be on its way back home to Germany.

Jasonoff

I would file a claim against the shop. Protect yourself.

That was a critical error. Don't let them brush it off.

sventastic82

Good luck getting it registered in Germany.
The TÜV will get you. I had it planned as well. Headlights, tail lights and coding had to be changed. 10% import tax. Shipping another couple grand.
I stopped the research after that and it might be more.

You are better off selling the car and buying one in GER. Best thing is you can get a station wagon C63.
You can get them for Way less as well.
In general it’s not worth it importing a car into Germany unless it’s an Oldtimer where the 10% and other regulations are waived.

CheckOrHold

It's different for govt. personnel being sent there for work.

And why is everyone all about the wagon AMGs? Am I missing something about it lol?

G_Money

No, people are weird.

Cwagon

AMG Wagons are awesome.