Author Topic: Injector seals/seats confusion  (Read 98 times)

irvine

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Injector seals/seats confusion
« on: 28 February 2019, 12:42 AM »
Hey team, I’m going to pull the injectors in my 280se (d-jet) and replacing the seats and o-ring.
Problem is I can’t find them for sale anywhere. The only ones are on eBay in the USA and state they fit w116, w124 & w126
Obviously that means the parts listed are for k-jet injectors.

Now my question is what physical differences are there in d-jet and k-jet injectors, are the seats and seals interchangeable??

Thanks,
Neil.

UTn_boy

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Re: Injector seals/seats confusion
« Reply #1 on: 28 February 2019, 08:28 PM »
The injector seals between D-Jetronic and K-Jetronic are not the same and will not interchange. 

The injector seals for your D-Jetronic 280se are still available new from Mercedes for around 1.61 Euros each.  Can you not just go to a local dealership or parts specialist and order them?  They're really inexpensive and readily available.  Part number 116-078-04-73.  Also, the aforementioned seal is the only seal there is.  There is no o-ring.  The big think rubber ring that is on the injector is nothing more than a cushion for the metal bracket that holes the injector down.  It has nothing to do with sealing. 
1966 250se coupe`, black/dark green leather
1970 600 midnight blue/parchment leather
1971 300sel 6.3, papyrus white/dark red leather
1973 300sel 4.5, silver blue metallic/blue leather
1976 280s astral silver/blue MB Tex
1978 450sel 6.9 Euro, Anthr/velour

irvine

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Re: Injector seals/seats confusion
« Reply #2 on: 01 March 2019, 12:18 AM »
Aaahhh I’ve been looking at k-jet parts then lol.
Cheers for the info, it actually makes sense now.

Neil.