[isthenew]

Hello All,

This regards my 1989 300SE with 235k miles, which makes it the in-line 6 (M103) engine. Yesterday I replaced my fuel injectors. Which, because I pulled the fuel distributor, was pretty simple. Except for a couple minor problems:

I stripped a couple of the 5mm Allen head bolts. And I broke one of the metal brackets that hold the injector in place/mount the injector to the engine.

I can not find either part to purchase replacements.

Does anyone have the part numbers? Or does anyone know interchangeability with other engines so I can hit a u-pull-it yard?

 

[isthenew]

Sometimes pictures help. Here’s a proper bracket and bolt from the top.

Here’s a proper bracket and bolt from the side.

And here’s my broken bracket and a stripped bolt.

Thanks

 

[Heikkif]

On M116 engine the spring bracket would be 1160700740. Try to find photos of that. Those allen heads get easily damaged. One way to get them out is to hammer star shaped male socket into the elongated hole. That is if there is room to do that. M6 is the size if I recall correctly. Other way is to try drill the screw hollow. I have red here that impact wrench and valve grinding paste at the tip of the socket opens them without stripping.

 

[isthenew]

Great! I’ll look at that part.

For the bolt, I have those reverse threaded, cutting sockets. And it was easy-peasy.

But to get the socket on, I tried to bend the spring bracket. Which is how that broke. Which gave me easy access to the bolt head. ...The socket bit into the bolt so hard it stuck. So I used it to tighten the bolt back in.

The last picture is actually after I replaced the fuel injector. It’s actually pretty snug. And will do for now. But I’d like to replace them.

...I think I lost a rubber mount for the fuel distributor too. I have a 10mm bolt that goes into a hole in the fuel distributor, at the engine. But there’s only engine there. And it feels like a gap underneath the FD.

 

[isthenew]

Looks like that’s the spring clip! Thanks!

Anyone have the part number for the bolt?

 

[isthenew]

...Reread that. I have at least one M6 bolt. I’ll give it a try.

 

[MBL87560SEC]

Looks like that’s the spring clip! Thanks!

Anyone have the part number for the bolt?

That bolt is N000912006004.

...I think I lost a rubber mount for the fuel distributor too. I have a 10mm bolt that goes into a hole in the fuel distributor, at the engine. But there’s only engine there. And it feels like a gap underneath the FD.

The mount is A1039880111.

 

[plinker17722]

Just the same on any W124 And W126 and some 190E with the M103 lump ...And i did the same thing on my W124 .And the secret is to hold the injector bracket with another spaner so it wont move . And the injector securing allen bolt head was not holding in the wrench .Only way i could remove it was to damage the bracket to get a good grip on the allen bolt head .Then replace the bracket after . pick and pull was my way out .

 

[Heikkif]

At a junk yard one has to get those allen screws to open without damaging the brackets. 1030780541 is not expansive on Ebay or at dealer either I would imagine. Dealer probably has the rubber mounts too.

 

[plinker17722]

I have 2 sets opf seals cages and O rings,, plus injectors i removed from my M103 .But so far away i am unable to be of help to you . These would have been a gift i wont need them any more ,.Car will go later this year so parts no longer of use to me,, only to the new buyer .