Hi all,

Just something I have noticed whilst driving my W210 E300 Turbodiesel around today, in the morning when the transmission is cold I have noticed that there isn't much lag in throttle response with regards to the car moving away from stationary.

Then after a fair few motorway miles (I am loving the cruise control/limiter btw!) I find that its slightly slower off the mark.

My guess is that the fluid in the torque converter when cold is thicker and therefore the turbine and impeller have a slightly stronger coupling vs a thinner hotter fluid.

Just wondering if the slight reduction in responsiveness when up to temperature could point to me needing to swap out the fluid - please note that the car shifts fine in all gears + overdrive, it does sometimes jolts slightly when coming to a stop though.

The car does have a transmission cooler as standard, however much like other parts on the car I am not sure 100% if its working correctly - currently in the process of fixing all previous owner's bodges etc.

Just wondering what everyone else's thoughts are on the matter, I am aware that the transmission is 'sealed for life' meaning that Mercedes will get more money when the transmission fails due to the oil breaking down in the future.

I have noticed that the oil dipstick tube is the same as the engine oil dipstick tube with regards to size, so I can simply use a suction device and remove the old oil and replace it with the correct oil (aware the oil isn't cheap).

Thanks in advance!

__________________
UK spec Mercedes W210 E300 Turbodiesel wagon - OM606.962 with 722.6 transmission - rust free!