[W126 Coupe] Abrupt shifting from 4th to 3rd

[Dawid Loubser]

Hi Bellamy,

The car does have a full service history, and seems to have been  
regularly maintained at M-B. It's only done 95000km though, and the  
last service (90,000) was back in 2004,
so it may very well be transmission oil / filter / etc. The previous  
owner really did not drive the car much.

The car is currently being given it's full 100,000km service by a  
very reputable Mercedes mechanic, and I get her back on Thursday. I  
thus can't have a look at
the detailed service record to check for gearbox repairs at the  
moment, as it's currently with the car.

I do feel silly, however, for it not occurring to me to just manually  
downshift (once you get used to an Automatic, you tend to leave it  
alone :-p)! It probably won't be as abrupt?
Sounds like a good idea to me...

Dawid


On 10 Apr 2006, at 6:03 PM, Mister McGoo wrote:

> Dawid;
>
> Markus is right, have your transmission serviced (mostly because it  
> is a service often neglected).
>
> But the M-B automatic downshift has always has tended to be harsh,  
> particularly 4th to 3rd when accelerating from a turn.  It's  
> typical in the W123, W124 and W126 through the 80's.
>
> When going into a corner, get into the habit of manually  
> downshifting and you will have bags of power to accelerate through  
> and out of the corner correctly.  (Remember to upshift before you  
> reach 160Kph or so)  It's much easier on the transmission and  
> kinder to your passengers.
>
> And your transmission will thank you with many extra years of life.
>
> -Bellamy
>
>
> From:  Dawid Loubser <dawidl at solms.co.za>
> Reply-To:  Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
> To:  Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
> Subject:  [W126 Coupe] Abrupt shifting from 4th to 3rd
> Date:  Mon, 10 Apr 2006 08:45:27 +0200
> >Hi Guys,
> >
> >Thank you for welcoming me and my 560SEC with the steering wheel on
> >the "wrong" side :-) I am still on cloud nine about driving this
> >wonderful car, and there is only on real problem that concerns me:
> >Gearshifting (up and down) between first and third, and up to
> >fourth,  is impressively smooth, even under very hard driving. But
> >shifting  down from fourth back to third, especially under load
> >(say, when I  put my foot down at say 60mph) is incredibly abrupt,
> >it shoves in  with a loud, sudden thump - to the point of alarming
> >passengers.
> >
> >I wanted to know if this is normal? Or, what it could be? To repeat,
> >  all other gears (up and down) are fantastic, but from 4 -> 3 is
> >alarmingly abrupt.
> >
> >thanks,
> >Dawid
> >The MB Coupes Website!
> >W126 SEC Mailing List
> >Postings remain property of MB Coupes, L.L.C.
> The MB Coupes Website!
> W126 SEC Mailing List
> Postings remain property of MB Coupes, L.L.C.

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