What are the differences between the 615 and 616 other than displacement?

Why did MB classify the 2.4 liter Diesel a 616 when the 2.0 and 2.2 are 615?

Sixto
87 300D

I think that's it.

__________________
83 SD

84 CD

the same reason Sixto that a 3.0 is a 617

__________________
Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving

Well, the 615 and 616 are four cylinders, different displacement, the 617 is a five cylinder.

__________________
83 SD

84 CD

615/616 are the same except cylinder bore and injection system.

615.940 was 2.0 and .941 was 2.2L so I don't think it was from displacement alone, I believe it was converting to the mechanical governor instead of pneumatic that earned the number up.