Fuel injectors early type vs. late type

[paults1]

Will the late type Fuel injectors work ok in an early 230sl. Early type #A000 078 0723, #on the injector DC8C45R1. Later type #A000 078 1123,#on the injector DC8C45R2. Is there any consequences if I use the later type?

Regards, Paul '63 230sl

 

[mbzse]

Yes, you can install Bosch "R2" injectors in your Pagoda engine
As far as I know, the "R1" is no longer available.

Mercedes as a matter of fact do state that you should not mix R1 and R2 injectors in one engine

[PeterPortugal]

Well Hans, you surprised me there.

Due to their very different size and shape I did not think it was an option.

I shall bear it in mind if I come across a set for sale.

[WRe]

Hi,
the R1 injectors have been replaced by R2 injectors, R1s are no longer available. They are more or less the same, afaik a slightly different spray angle.
As Hans mentioned only one type should be used, no mixing of both.
...WRe

[mauro12]

I have just bought a set of 6 brand new bosch injectors and the car run terribly. No idle , no acceleration and huge smoke.
I will put back the old one but honesty how is possible that a new injectors fail so badly? Maybe they are fake bosch?