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Hi Guys - have a question about an overdue b7 service.
The mrs' car is a 2019 GLC300 4matic, coming up on 50,000KMs/32k miles.
She has a warning saying B7 is overdue. I read that B7 is the transmission service.
Seems early for a trans service already?
No issue performing it at home as I wrench on older trucks, but curious as I read somewhere online that there was possibly a TSB saying this was too early?
2016 GLC 250d AMG pack, 2017 GLC Coupe 250d AMG pack , 2002 BMW 330Ci convertible, 2021 BMX X1 sD20i
Can depend on Region/Country due to enviro conditions. Australia is 5 years and/or 125,000km - which ever comes first. Some Dealers are happy to extend to year 6 where km is low. Expensive service, usually includes transfer case at rear on 4 Matic. Buy new gearbox “sump” as filter is encased in it, 10 new bolts, etc.
Its not critical but the fluid is getting somewhat tired and there is a performance benefit to doing it. The official interval is like 50-60k.
I would do it at 40k but it's not an emergency you'll just notice hard shifts during cold mornings because the fluid has thickened and isn't giving you the line pressure and you'll get shudders.
Hi Guys - have a question about an overdue b7 service.
The mrs' car is a 2019 GLC300 4matic, coming up on 50,000KMs/32k miles.
She has a warning saying B7 is overdue. I read that B7 is the transmission service.
Seems early for a trans service already?
No issue performing it at home as I wrench on older trucks, but curious as I read somewhere online that there was possibly a TSB saying this was too early?
Thanks for input in advance.
Did it at 40K miles, i have old fluid pictures posted on this forum somewhere. It was very dark. Make sure you drain torque converter and do adaptation required Xentry after an oil change.
Did it at 40K miles, i have old fluid pictures posted on this forum somewhere. It was very dark. Make sure you drain torque converter and do adaptation required Xentry after an oil change.
If you go into the ASSYST PLUS menu it should list which services the car is saying to do.
I'm sure it is different to get into from my W204 but i'll post it anyways. I've read the service scope list is the same for all models.
Mine said service BH is due.
So I went into the assyst plus menu:
Then it showed this:
So I had service 2,3,11 and 13. I looked on the list to see what those services were. The services made sense since my car just hit 150,000 miles. It lined up with what the Maintenance Manual in the glove box was saying to do.
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