722.9 gearbox
Thread Starter
Newbie
Joined: Aug 2010
Posts: 14
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1989 w107 500sl 2004 r230 350 sl 2006 164 320 ml
722.9 gearbox
Hello, I have a 2006 ML320. I have just done a gearbox service (ie. changed oil in box, new filter, drained torque converter, flushed out oil cooler, refilled box and checked at 45 degrees centigrade and let excess drain off). It took about 8.5 to 9 litres. Before the service the only problem with the box was sometimes on slowing down and pulling away when it was a little clunky. Now the box shudders badly under throttle going up steep hills, especially if it changes up from lower gears. On the flat it works OK but is still a little clunky at low speed when slowing down and pulling away. Has anyone any ideas why? Will it settle down?
Dave
Dave
Super Member
Joined: Dec 2009
Posts: 748
Likes: 93
From: Dhahran, KSA
2020 E 300 Coupe and 2019 GLS 400
Do you have access to a Star Diagnostic system? maybe try resetting the gearbox adaptations and/or check codes. If not, perhaps disconnecting the battery for a whole day might help. I've seen many people complain after a transmission service, it might require some time & driving to adapt. Posting in the correct W164 form will get you more answers:
https://mbworld.org/forums/m-class-w164-72/
https://mbworld.org/forums/m-class-w164-72/
Thread Starter
Newbie
Joined: Aug 2010
Posts: 14
Likes: 0
1989 w107 500sl 2004 r230 350 sl 2006 164 320 ml
Hi.Solo Wing. I don't have access to a Star but read codes with OBD diagnostic code reader. Nothing about gear box problems, jus glow plug control. Before gearbox service had code torque converter running hot but cleared since service. The juddering seems now to be when accelerating as well as going up hill. Thanks for saying about posting on W164. I have it posted on both. Thanks Dave.
