Date registered: Aug 2005
Vehicle: 2002 E320 Wagon, 2002 ML320
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RE: 4matic transmission service
I hear the older 300e 4matics (early 90's) had some problems, but nothing on the newer ones. Getting the transmission fluid flushed and filter changed every 40k-60k miles is a must for any benz, sealed or not. At the very least, drain and drop the tranny pan and replace the filter. Better to remove the torque converter plug as well and drain that too, since the pan only has part of the total fluid. I think post-99 models are the ones without torque converters, so you might be ok. It's not too hard to do yourself if you are a little mechanically inclined, here is a link to DIY (with torque converter plug) at mercedes shop: http://www.*****************/Wikka/Trans7226Fluid. If you don't have torque converter plug, then you would need to flush the system. One way is having a shop use a machine, but I'm leery of that. Another is a DIY method where you attach a hose to the transmission cooling line and flush from there by draining two quarts, then adding, then repeat several times. There are a few write ups on this that you can find by searching this site or *****************.