2008 Automatic Trans Fluid change interval differences
So, why is the 2008 the odd ball out? Did MBUSA back-spec the maintenance and requires ATF changes every 40K on the 2008 models as well?
Thanks!
Yes, the first year of the 7G Tronic or so they actually recommended no changes EVER. They found out that wouldn't work so well.
They then added the one change at 39,000 miles. Now it's every 40,000 miles.
Honestly, I'd go with the more regular fluid change too. EVERY 39-40k.
In fact, I had mine done this summer at 35,000 miles. I figured doing it with 15 percent fewer miles than spec would only be beneficial, not harmful. I thought for the first change a bit early was even better.
The 2008 book and computer also lets you go 13,000 miles on the engine oil, but that is down to 10,000 now. I think 10,000 makes more sense too.
It could be in my head, but I thought I could "feel," a difference in the car after the transmission service this summer. Even smoother shifting and a bit more willing to go, again, could be in my head, but better a mental improvement than a negative. The real benefit is getting the old fluid out I suppose for longevity.
A great member of our forums also suggested that when you get the new fluid, you have fresh active additives that makes everything nice and slippery again. Over time, the fluid might become a bit less slippery (my term) as the additives that help with this are depleted.
http://www.montereymercedes.com/specials/service.htm
But I'm looking through the maintenance booklets for both 2008 and 2009 models and I do not see a recommendation for transfer case fluid change anywhere at any point in the car's life.
I think the transfer case draining was added to the just having the transmission fluid removed and replaced. You'd think MB would have gotten that right earlier on.
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Engine flushing is quite another matter. Never necessary with proper maintenance.
We agree that proper maintenance prolongs the life of expensive components.
I guess I didn't get my point across.
I was pointing out the outrageous price of maintenance on a poorly built or engineered component that needs more maintenance that was needed on transmissions built years ago or currently built by other car companies.
So the trans needs service at 40K but not at 20 or 30?I'm gratefull to the manufacturers.................
Why not take the dipstick out of the motor and charge $400 for an oil change ...... at that point you would also have to say that changning the oil and filter would be a good idea because the motor oil gets dirty , loses it's lubricating qualities and changing the oil would prolong the life of the motor.....why not add that you would have to change the motor oil every 2000 miles or it could effect your warranty?
Engine flushing is quite another matter. Never necessary with proper maintenance.
the customers just whip out the credit card,not wanting to look cheap
or to even to ask questions about a $400 to $500 service.
actually if I was loaded I would do the same hehehe

I can't afford such feelings { or too cheap }
But I do change my motor oil and filter twice a year { I do about 12k a year}.It costs me less than $50 {I do it myself} and I also get that good feeling ... hehehe

Yes, the first year of the 7G Tronic or so they actually recommended no changes EVER. They found out that wouldn't work so well.
They then added the one change at 39,000 miles. Now it's every 40,000 miles.
Honestly, I'd go with the more regular fluid change too. EVERY 39-40k.
In fact, I had mine done this summer at 35,000 miles. I figured doing it with 15 percent fewer miles than spec would only be beneficial, not harmful. I thought for the first change a bit early was even better.
The 2008 book and computer also lets you go 13,000 miles on the engine oil, but that is down to 10,000 now. I think 10,000 makes more sense too.
It could be in my head, but I thought I could "feel," a difference in the car after the transmission service this summer. Even smoother shifting and a bit more willing to go, again, could be in my head, but better a mental improvement than a negative. The real benefit is getting the old fluid out I suppose for longevity.
A great member of our forums also suggested that when you get the new fluid, you have fresh active additives that makes everything nice and slippery again. Over time, the fluid might become a bit less slippery (my term) as the additives that help with this are depleted.

We agree that proper maintenance prolongs the life of expensive components.
I guess I didn't get my point across.
I was pointing out the outrageous price of maintenance on a poorly built or engineered component that needs more maintenance that was needed on transmissions built years ago or currently built by other car companies.
So the trans needs service at 40K but not at 20 or 30?I'm gratefull to the manufacturers.................
Why not take the dipstick out of the motor and charge $400 for an oil change ...... at that point you would also have to say that changning the oil and filter would be a good idea because the motor oil gets dirty , loses it's lubricating qualities and changing the oil would prolong the life of the motor.....why not add that you would have to change the motor oil every 2000 miles or it could effect your warranty?
DIY servicing is not that difficult & the latest Shell 236.14 approved fluid is just over 5 bucks a quart.
If you want to get pissed then aim that at ripp-off stealers & MBUSA being dumb with their BS filled for life claim.
Just to let you Yanks know how well off you are with your $5 a quart price. Here, I was quoted $18.75 per litre ( quart) for Fuchs. It would be cheaper to pay the $150 freight for the 12 quarts @ 5 bucks each in the US than buy it here.
Mobil & Shell do not distribute this AFT here.



