ML350
This is my first time using this forum.
I am not even sure if I am in the right place!
I have a 2013 ML350 with 137,000 miles on it.
I was at the dealership yesterday getting a service. They said I needed the following:
Change the brake fluid
Service the transmission
Front & Rear differential service
The total of which is $1150.
Do I need all of this?
I don't want to put my car at risk & I have never declined work, but I'm not sure if this is all necessary.
I looked in the maintenance book & it stated to change the brake build every 20,000 miles.
It also states to do the transmission but never mentions the differential.
I want to note that I did have the brakes replaced 10.000 miles ago by a different shop, and the dealership was annoyed when they saw that another shop worked on my car.
Can anyone please enlighten me?
Any and all help & suggestions are welcome!
Thanks so much for at least reading my post!
Joanne




Brake fluid: Not something normally changed 30 yrs ago, but what with ABS etc, who knows. Can't hurt.
Transmission: I personally wouldn't. Many times, the oil change induces transmission clutches slipping etc. It would be a good thing to do, you're just 75k miles too late. If the shop promises you the tranny won't slip afterwards, go for it
Differentials: Can't hurt, but doubt it'd really be beneficial
The above is my opinion, which is like an a$$hole. Everyone has one *wink*
Brake fluid absorbs moisture, this moisture causes brake fluid to degrade (lowers its boiling point), moisture can causes rust to form on the metal parts of the braking system. Transmission fluids should be changed regularly, because heat is the enemy of the fluid. Front and rear diff? That's a grey area as it just gear oil.....
Sorry - wrong decade for that comment - YES - your transmission requires regular recommended fluid/filter service - or you will be paying for a replacement transmission instead !
The transmission was previously done almost 100,000 miles ago
Brake fluid at 22,000 & 106,000 mi
Doesn't look like the differential has ever been done.
I guess I'm in for a big bill in January!
Brake fluid flush is to be done every 2 years (M-B has called for this for decades)




https://www.mercedesbenzraleigh.com/...ce_Booklet.pdf
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Sorry - wrong decade for that comment - YES - your transmission requires regular recommended fluid/filter service - or you will be paying for a replacement transmission instead !
Uhhhhh, did you actually bother to read the OP's post? 137k miles and he didn't state that the tranny oil had been previously replaced. Only on post number 5 did he realize that it had indeed been replaced already in the past.
Oh, and by the way. The senior national service manager for AAMCO (who worked as a tranny tech for 30+ yrs before getting up in the ranks) stated the same thing.
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Oh, and by the way. The senior national service manager for AAMCO (who worked as a tranny tech for 30+ yrs before getting up in the ranks) stated the same thing.
https://www.mbusa.com/mercedes/servi...SAAEgIFivD_BwE
Last edited by kombifan; Dec 9, 2018 at 09:03 PM.





