What is a B5 service?

She basically has a 2014 model as far as the engine and transmission goes. I changed the single engine air filter myself this past summer.
I looked at the updated MB Maintenance Manual online and it does not have this service.
1. Can anyone explain this "B5 service" to me? What is performed and how expensive is it?
2. Since she has not had the 4yr 40k miles transmission service is this a good time to do it? Can we wait to this spring when she will have the 40k miles?
BTW The Dealer service writer keeps telling me that the transmission service is at 70k Miles.

What does the "5" mean?

I asked what the "5" meant and she said "That is for the technician." I could not get her to tell me what it was.
Mystery continues.

(I refused to be a victim of NA intervals - or lack of same - with our 5 speed transmissions.)
Last edited by grane; Nov 13, 2016 at 11:03 AM.

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I only know about service intervals for engine/trans combos sold in the U.S. In the U.S., the old 7G Tronic was 39k intervals, the updated 7G Plus has totally different fluid and new internals, hence the longer time between service.
Of course, it can't hurt to get it serviced sooner if you want. Just make sure an MB specialist or dealer does it, because it seriously MUST have the correct fluid.
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I only know about service intervals for engine/trans combos sold in the U.S. In the U.S., the old 7G Tronic was 39k intervals, the updated 7G Plus has totally different fluid and new internals, hence the longer time between service.
Of course, it can't hurt to get it serviced sooner if you want. Just make sure an MB specialist or dealer does it, because it seriously MUST have the correct fluid.

, implying that a deeper pan and overflow tube is required for the 7GT+ transmission? Is this is what the 5 means, and bulletin-required update would be performed at the B service? I don't quite follow you, sorry it's been a long day. Please explain.
Last edited by grane; Nov 20, 2016 at 05:08 PM.
Last edited by Toppthat; Nov 20, 2016 at 07:07 PM. Reason: Spelling






