B9 service
I’m out of warranty on my 2014 model (35 k miles). Would I be better off buying the three pack service (if it still exists) or do it “a’ la carte”? Thanks

I had my 2013 serviced this past spring for B9 and it was the 6th time it went in for service since new. (I had 36k miles on it at the time).
The OP says the car is a 2014 so it hasn't been 18 years yet, and the OP said it's got 35k miles so it hasn't hit 180k miles yet. So therefor B9 can't mean 9th B service.
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It had 36k miles on it at the time, so very similar to you car.
BTW if you don't have a pre-paid maintenance package, I recommend getting one before you get the service done. It'll almost pay for itself with 1 service.
I paid $1400 for a 3 pack of pre-paid maintance. This one service was over $1200. Next service will include a transmission flush which is also a pricy one.
It had 36k miles on it at the time, so very similar to you car.
BTW if you don't have a pre-paid maintenance package, I recommend getting one before you get the service done. It'll almost pay for itself with 1 service.
I paid $1400 for a 3 pack of pre-paid maintance. This one service was over $1200. Next service will include a transmission flush which is also a pricy one.

will give a quick overview of what the letter refers to. not sure about the number.
It had 36k miles on it at the time, so very similar to you car.
BTW if you don't have a pre-paid maintenance package, I recommend getting one before you get the service done. It'll almost pay for itself with 1 service.
I paid $1400 for a 3 pack of pre-paid maintance. This one service was over $1200. Next service will include a transmission flush which is also a pricy one.

That is for the Assyst system, the web page is found here http://www4.mercedes-benz.com/manual...&part=in-depth
I just purchased a new to me E250 and I currently own a E320 CDI. The service systems are a bit different, but on the 320 there is a maintenance manual page that describe additional items. So on that car you will service A, B, C, D, or E and then addtional work items in the FSS menu with numbers next to them. You then go to the manual and that page tells you what each item is. So, I can't tell you what the 9 is, but looks like you have service B due, with an additional item number 9 due at the same time.
From the user manual Maintenance Assyst Plus (page 327):
The letter indicates which service is due - "A" minor service, "B" major service.
The number (or another letter) indicates any additional maintenance work required.
From memory I might have had B3 for the transmission service.
Next march will be 7 years and I'll likely be around 40k to 41k miles, they will do the transmission fluid flush which is every 7 years or 70k miles. again covered under pre-paid maintenance.




While the car is under warranty you better take it to the dealer for all scheduled maintenance. This is including the extended warranty period. Yes, if you do your own oil changes etc. with all documentations you should be fine but if something goes wrong it is better if the dealer service did all of it.
But, after warranty you do not need to take it to the dealer nor do you need to document the service other than to yourself.
My recommendation is to change engine oil every 5000 miles if you plan to keep your car. I did this between dealer oil services at every 10000 miles anyway.
My car has over 170000 miles on it and I have not flushed engine cooling system yet nor have I flushed the brake fluid either. Reason is I drive 85% highway and my engine life is only about 1/3 of the city driving mileage. I am getting to flushing them both soon though.

While the car is under warranty you better take it to the dealer for all scheduled maintenance. This is including the extended warranty period. Yes, if you do your own oil changes etc. with all documentations you should be fine but if something goes wrong it is better if the dealer service did all of it.
But, after warranty you do not need to take it to the dealer nor do you need to document the service other than to yourself.
My recommendation is to change engine oil every 5000 miles if you plan to keep your car. I did this between dealer oil services at every 10000 miles anyway.
My car has over 170000 miles on it and I have not flushed engine cooling system yet nor have I flushed the brake fluid either. Reason is I drive 85% highway and my engine life is only about 1/3 of the city driving mileage. I am getting to flushing them both soon though.






