Coolant for E350?
The dealer says my vehicle should use the blue 325.0 coolant but the vehicle has a faint yellow coolant in it (Zerex G05?). I believe this is factory fill but am not certain given the vehicle has 75K miles on it.
For the rear differential, Mercedes says a 85W-90 Hypoid gear oil. I'm a bit apprehensive of paying the $40/ltr the dealer wants and looking for compatible options.
I appreciate any guidance from you experienced MB owners!




Over the years I had lot of experience confirming that MB coolant is superior. Used it even in my Ford trucks.
The older MB coolant was pee-colored and maybe your 2013 had it originally?
Anyway, mixing blue with yellow might make green, what is not the color you want to see in MB.
My advise is to buy few gallons of Distillate Water and do at least 2 flushes of whole system before putting blue coolant in.
Differential oil change? Usually owners don;t go there till 20 years or 200k miles.




The dealer says my vehicle should use the blue 325.0 coolant but the vehicle has a faint yellow coolant in it (Zerex G05?). I believe this is factory fill but am not certain given the vehicle has 75K miles on it.
For the rear differential, Mercedes says a 85W-90 Hypoid gear oil. I'm a bit apprehensive of paying the $40/ltr the dealer wants and looking for compatible options.
I appreciate any guidance from you experienced MB owners!
For the drain plug read the below link especially how not to break the plug and if that happens how to get a new one from Chrysler/Dodge for pocket money compared to the MB option.
https://mbworld.org/forums/e-class-w...your-w212.html
For differential I would not bother before 100 000 miles. I had mine changed at 150 000 miles. If you change it use the MB oil so it will for sure last as long as they designed it to last, i.e. the life of the car.
I have not seen any info for the (silicate?) chem pack. Do you know what the part # is?
Are there any engine drain plugs that can be removed to get out more of the old coolant?




There are engine drain plugs, but hardly accessible. That is why I think spending $4 on DW and do the flush is much easier and efficient. Just be careful with plastic radiator drain.
This all new to me and I appreciate the advice!
I have used the bevo MB site to look up the approved fluids for motor oil and transmission fluid. I will use the MB coolant due to your recommendation and since it is reasonable in cost. Since I'm a firm believer in routine maintenance and its easy enough to do, I would still like to change the differential oil. Doing all this service also allows me to go through the whole vehicle and see if there are any underlying issues. All I get from MBUSA is that my vehicle uses SAE 85W90 Hypoid gear oil. I can't get any other spec. out of them. Is there a spec. sheet on bevo MB that I've overlooked which shows a list of approved gear oils?
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https://bevo.mercedes-benz.com/bevolisten/231.1_en.html
I think I just have the rear axle-standard differential which also points me to 235.7. I have a W212 with the 276 3.5l engine.
Then I come across this gear oil that meets the spec and am real happy since its half the price of the MB oil:
https://www.pelicanparts.com/More_In...6&KeepHeader=Y
Its great that MB has these lists of approved fluids, but it certainly is tricky to navigate. Please check behind me to see if this is correct.




In case like that, I simply go to dealer and buy the stuff over the counter, unless, what happens more often I plan bigger jobs and have big shopping list for internet order.
Anyway, when MB doesn't manufacture oil, but there are better and worse suppliers. IMHO Motul is better in oils and much cheaper than Febi https://www.autohausaz.com/pn/TL-001989330312
I did see the Motul that you mentioned but do not see the 235.7 approval for it. I have seen recommendations for Mobil1 75W-90 as well, which is a great product and might be fine, but also does not have MB approval. So its off the list.
https://mbworld.org/forums/e-class-w...placement.html




According to the chart you posted my 2013 E350 is right in between the switchover years and should use the G48 which shows the 32.0 approval. I think I'll stick with the MB blue coolant, its quite reasonable at $21/gal.




https://www.motor.com/magazine-summa...-or-orange-or/
My older MBs got G-05 for a full flush.
Last edited by Audi Junkie; May 19, 2020 at 12:36 PM.







