Gearbox Jerking

[chris489]

I have a 2011 Mercedes ML300 4 Matic. When the engine is cold, the gearbox will jerk when downshifting at low speeds. For example when braking to a stop or travelling up hill and the car needs to downshift.
Car has only done 38k (miles)

 

[W210Virgin]

And what?

 

[kianok]

Has it had a gearbox service?

 

[chris489]

Not sure, it has full service history. Next service is D service in 14k

 

[kianok]

Box is due a service at 40k so worth getting that done and see how you go after that.

It's about £150 at an indie.

 

[Pitts Pilot]

I have a 2011 Mercedes ML300 4 Matic. When the engine is cold, the gearbox will jerk when downshifting at low speeds. For example when braking to a stop or travelling up hill and the car needs to downshift.
Car has only done 38k (miles)

LOL

Low transmission fluid level

Cheers,
Robert

 

[chris489]

The transmission is a sealed unit I think. So I'll get it checked at mb.

 

[BlackC55]

The transmission is a sealed unit I think. So I'll get it checked at mb.

It's not a sealed unit.

Jerky down changes are not uncommon on the 7spd.

My ML suffers....

 

[chris489]

Mb have suggested reprogramming the gearbox will cure the problem.

 

[Jonwatson]

My ML is the same must be a feature

 

[Druk]

"Mb have suggested reprogramming the gearbox will cure the problem."



I suffered a jerky downchange and it has had a fluid change; but what made all the difference was a complete re-boot of the gearbox. "The adaptations" I've been told. It took the engineers two hours to do this but it has totally transformed the gearbox. They told me (and I have the printouts...not that I understand them) that the settings were so far out that it needed scrubbed and started from factory default.






.

 

[ALFIEBEARD]

Has it had a gearbox service?

A 2011 should have a 7G+ box which Mercedes say doesn't require an oil change/service until its covered 77,000mls if it uses the blue oil then its the 7G+ .

Probably low fluid level or as others have said needs adaptations.

Alfie

 

[JamesOverton]

My ML is the same annoying as hell

 

[Vlad]

I've just had a new Torque Convertor fitted to my ML and its got rid of the judder.

 

[JamesOverton]

I've just had a new Torque Convertor fitted to my ML and its got rid of the judder.

How much was that? Eye watering?

 

[Vlad]

I've not had the bill yet....but my local indi sends the Torque Convertors off and they get reconditioned which is about £200 of the bill, the rest will be labour for removing and installing the gearbox. Still going to be painful though