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Car Forum / BMW Cars / January 2006

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Hard to shift when cold.

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Peter Bozz - 25 Jan 2006 06:30 GMT
Hi,

When I start the car (a '97 325 TDS) in the morning, I find it almost
impossible to get it into first gear: it simply won't go in. Then I
discovered that if I put it into third (while still keeping the clutch
depressed from the attempt to put it into first), and then back into
first, it usually fits without any trouble. However, after I pull away
and need to shift to second, it again refuses to go in, unless I really
force it down into its slot. The higher gears are never a problem.

As long as the car is cold, the gearbox behaves in a similar way at
every stop light. Only once the car's warmed up, the shifts become
smooth and easy again.

I have to add, this only started recently, when the weather got really
cold down here, where "really cold", by our standards, is about (please
don't laugh) -5C/23F.

What do you think? Is the gearbox oil too old or have they put in the
wrong one at the last change? Something else?

Thanks

-- Peter
Eisboch - 25 Jan 2006 13:59 GMT
> Hi,
>
[quoted text clipped - 20 lines]
>
> -- Peter

Don't discard the idea that the wrong fluid was installed.  Years ago I had
a little manual transmission truck (Ranger) that I had serviced, including
changing the transmission fluid.  They put gear oil in it instead of the
lighter transmission fluid specified by Ford.  In cold weather it was
impossible to shift or put into gear until it warmed up significantly.

Eisboch
John Carrier - 25 Jan 2006 21:30 GMT
It's probable the trans was serviced by a lubricant too heavy for the job.
Your era BMW probably was filled with a synthetic D4 ATF equivalent (great
shifting when cold, a bit less lubrication that optimum).  Many techs
recommend a slightly heavier brew like Redline MTL (which will give the
impression of a slightly balky trans when really cold).
Check the specs to make sure, and then swap out the fluid with a quality
replacement.  You'll need a small length of Teflon plumber's tape for the
drain plug.  Should take around 1.5 quarts.  Make sure you remove the filler
first, its on the passenger side of the trans.

R / John

> Hi,
>
[quoted text clipped - 20 lines]
>
> -- Peter
Peter Bozz - 26 Jan 2006 06:28 GMT
> It's probable the trans was serviced by a lubricant too heavy for the job.
> Your era BMW probably was filled with a synthetic D4 ATF equivalent (great
[quoted text clipped - 7 lines]
>
> R / John

Ok, thanks, I guess I'll go and try that.
 
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