Torque converter

[Rabt]

Evening,
I was quoted today from Mercedes of £2700 to supply and replace the torque converter on my 2010 ML350. Apparently there is only one available in the UK.
The car has been in twice to diagnose the fault on their system. Is this a reasonable price to do the repair?
Thanks
Rab

 

[ajlsl600]

Go to a good indie. But it's a big job.

 

[Rabt]

Thanks for getting back.
That was my next option but I cant seem to find any in the Edinburgh area. I will keep looking.
Someone mentioned it may be the oil and filter, but this was done about 4 years ago and the car has only done roughly 3500 miles since then.