M80
Senior Member
- Joined
- Jan 21, 2006
- Messages
- 6,099
- Reaction score
- 2,878
- Location
- Derbyshire
- Your Mercedes
- 2014 639 Viano- 651, 5sp Auto. 2009 S211- 646, 5sp Auto.
Viano 2.1 CDI presently with the 36:11 diff.
Not diagnosed conclusively but pretty sure it's that that's whining.
My choices are to refurb this one, the simplest course.
Or replace with a 38:13 diff from the 3.0 CDI.
That would drop the revs by nearly 11%. So a remap would be advantageous following that.
Is a diy recon of the existing diff feasible?
Is there anything super technical / set up equipment required that would make this not feasible?
I have access to Star, if I choose the 3.0 diff option can the ECU be told of the new ratio?
Does this need to go online for that?
I would aim to replace the diff bearings of the 3.0 diff prior to swapping.
Not diagnosed conclusively but pretty sure it's that that's whining.
My choices are to refurb this one, the simplest course.
Or replace with a 38:13 diff from the 3.0 CDI.
That would drop the revs by nearly 11%. So a remap would be advantageous following that.
Is a diy recon of the existing diff feasible?
Is there anything super technical / set up equipment required that would make this not feasible?
I have access to Star, if I choose the 3.0 diff option can the ECU be told of the new ratio?
Does this need to go online for that?
I would aim to replace the diff bearings of the 3.0 diff prior to swapping.
