DuxDeluxe
LIFE MEMBER
My 2009 c250cdi was a 5 speed box, the 7 speed came with the facelift in about 2011Yip, didn't have that in the 2009 C220D either. Perhaps a different gearing system?
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My 2009 c250cdi was a 5 speed box, the 7 speed came with the facelift in about 2011Yip, didn't have that in the 2009 C220D either. Perhaps a different gearing system?
It does, it's all in the throttle control, slip it into manual or whatever is on the newer ones, especially on hills, and drive like it was an old lorry, and you will stop that. I know what I mean anyway!Only things I would say about the Merc auto box is the continual hunting for gears at lower speeds. I have a C350, a great car, more than enough power but it does jump a little. I don't know if the MH box is the same. It's not a major problem for me, I don't care but others may think it is a big issue that is why I am mentioning it.
I have the same engine/gearbox & the same problem if I need to take it round the back of the house, with the additional complication of a bit of a slope.I have ordered my MH (3650kg) with the comfortmatic box upgraded to 150BHP, hope it's going to be fine. I intend to park in my drive which will require slow manoeuvring in a tight space. I hope it will be fine ?? Apologies if this is hijacking the thread.
I have the same engine/gearbox & the same problem if I need to take it round the back of the house, with the additional complication of a bit of a slope.
It is more difficult to do fine control than with either a manual clutch or a conventional torque converter automatic, but it's not too bad on the flat bits. Once you get a bit of a slope as well, it's easy to overheat the clutch. In those circumstances you need quite a few revs on before it starts to move at all & then it's off like a racehorse unless you control it with the brake. If you ease off on the throttle the clutch disengages & you are going nowhere - or straight back down the slope again! The automatic clutch just doesn't have the control finesse that is achievable with a manual clutch, so you have to balance it against the brake, as you would in a full auto.
Balancing a slipping clutch with the brake causes every mechanical sympathy nerve in your body to start screaming & it's not long before the clutch overheat warning start screaming at you too, but if you want inch perfect manoeuvring, backwards up a slope with an angled entrance into an alleyway only a couple of inches wider than the van, you don't have a lot of choice. They've now installed one of those raised bus stop kerbs right opposite the entrance too, reducing the effective road width. Can't complain, as a wheelchair using family, we have to applaud better access to public transport.
The good news is that it does get a bit easier with practice!