7G Tronic servicing
Discussion
We have a 2008 ML320 Sport with the 7G tronic transmission. What is the general thinking for having the transmission serviced, i.e. every x number of years or y number of miles, and is it a fairly standard thing for a Mercedes specialist or dealer to do? What's the likely sort of cost?
TIA.
TIA.
IIRC typically gets done once at 37,500 miles.
That's recommended by the manufacturer. I would probably get it done every 40k as the oil and filter does get dirty and degrade.
In terms of the job itself, it's less than an hours work. Process is that the pan is drained, pan and filter removed & replaced + pan gasket & bolts (stretch bolts used require to be replaced).
It is then filled back up through the pan with a tool that screws into the drain plug/or shove a hollow bung in to fill it attached to a fluid pump - usually put in 4.5/5 litres. You then connect DAS/Xentry/use infra thermometer to heat up gearbox oil to a temp of 37/40*, remove the filling tool and allow the fluid to drain until it goes from a constant flow to a broken flow.
Most specialists will be able to do it no problem.
IF you are having issues other than the fact you just want it changed, you could have the transmission flushed completely to replace all the oil in the transmission, or go half the way and drain the torque converter when having the pan/filer replaced.
That's recommended by the manufacturer. I would probably get it done every 40k as the oil and filter does get dirty and degrade.
In terms of the job itself, it's less than an hours work. Process is that the pan is drained, pan and filter removed & replaced + pan gasket & bolts (stretch bolts used require to be replaced).
It is then filled back up through the pan with a tool that screws into the drain plug/or shove a hollow bung in to fill it attached to a fluid pump - usually put in 4.5/5 litres. You then connect DAS/Xentry/use infra thermometer to heat up gearbox oil to a temp of 37/40*, remove the filling tool and allow the fluid to drain until it goes from a constant flow to a broken flow.
Most specialists will be able to do it no problem.
IF you are having issues other than the fact you just want it changed, you could have the transmission flushed completely to replace all the oil in the transmission, or go half the way and drain the torque converter when having the pan/filer replaced.
Thanks for that, very useful.
No issues really, at least the transmission doesn't feel any different than it did when we bought the car. I don't like it much, sometimes it seems to shift quickly when I put the foot down but sometimes it seems to wait for a good second or two, but I think that's just how it is. I'm spoiled with the ZF unit in my XKR. This is really just preventative maintenance, ZF recommend a service every 60k miles so wondered what we should be doing for the unit in the Mercedes since the arse has fallen out of the market for used diesel cars, we'll probably just keep this one now until it's dead.
No issues really, at least the transmission doesn't feel any different than it did when we bought the car. I don't like it much, sometimes it seems to shift quickly when I put the foot down but sometimes it seems to wait for a good second or two, but I think that's just how it is. I'm spoiled with the ZF unit in my XKR. This is really just preventative maintenance, ZF recommend a service every 60k miles so wondered what we should be doing for the unit in the Mercedes since the arse has fallen out of the market for used diesel cars, we'll probably just keep this one now until it's dead.
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