gear box oil change

[BIG_G_1979]

Hi guys is there any special tools required to change gear box oil on a e280cdi auto 7speed is it just a matter of draining oil from sump plug

 

[Mrhanky]

Best to do a search as its been asked a few times. No expert but you need to flush the torque converter as it hold a fair bit of fluid. Also there is a filter that need to be changed as well.

 

[lim]

...any special tools required to change gear box oil on a e280cdi auto 7speed is it just a matter of draining oil from sump plug

It's not difficult per se, but you will need the right quantities of the correct fluid, filter, gasket and a hoist (or maybe a pit). Sometimes torque converters have drain plugs - and sometimes they don't - this can apply to the same model of transmission. You should therefore research a number of situations and solutions. If the Tx is a 722.9, I believe they are replenished by a 'fill and spill' method and at a precise fluid temperature. The later is usually monitored using the Star DS.
It may be wiser to get it done professionally by a workshop that has all the spares, tools, know-how and a hoist!

Regards, lim

 

[topliner]

Hi, I found this on youtube it's for an oil change on a w204 auto transmission but it is the same gearbox as yours. I followed the same procedure on my car and all went well.The "extra" procedure shown in this video was the flushing of the gearbox oil cooler.
Hope this helps Mercedes W204 C Class Transmission Service ATF Fluid Oil Change 7GTronic 722.9 Test 0-60 mph - YouTube