I'll worm a new harness into this thing soon. It's on my list of things. if I dont, this is gonna get a new engine. Diesel. Have not decided yet though...

Where is the MAF so I can clean the bugger.

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

The MAF is in the black intake tube just downstream of the air filter. You will need to disturb the wiring harness -see how that works?-to remove it from the car.

Oh fun, thats what that is.... i'll clean it, report back,

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

on a side note, is the sedan/coupe/Wagon harness the same one? I have one from a sedan and after a little reading there's some that say they are different

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

I b'lieve there is an early harness for engines with a ignition distributor and a later harness for engines without a distributor.

All of the E320s are distributorless, the 300E 2.8 and 300CE had the distributor M104 IIRC.

However, there was a wire harness change mid-year in '95, you can tell by VIN, I believe that the above ^^ sellers have the harness listed by VIN.

If you have the later-style belt tensioner (not the M103-style), you might also have the later harness. Best to check.

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Gone to the dark side

- Jeff

No Idea. I know I need a harness now... eesh.. touch one little thing and it all goes plotz. on a side note, I think I figured out some of the problem. On the front of the engine there's a round thing I assume has to do with timing, there was one of 2 wires that was almost completely sheared off, also the MAF is clean.

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

anyone care to tell me if I need an early or late harness WDBEA92E6RF288812

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

Looks like that VIN takes the early version (up to F302891), p/n 124-440-56-32.

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1988 California version 260E (W124)
Anthracite Grey/Palomino
Owned since new and still going strong and smooth
MBCA member

Past Mercedes-Benz:
1986 190E Baby Benz
1967 230 Inherited from mom when she downsized
1959 220S Introduced me to the joys of keepin' 'em goin'

There are only 10 kinds of people in the world--those who understand binary and those who don't

The front of the engine thing is the cam timing adjustment mechanism. It should also have one or two vacuum hoses going to it. That reminds me that there is at least one vacuum hose that connect to the underside of the intake manifold and, and it is an acrobatic feat to make sure it is connected. Reach in from the front and snake your arm in.
The idle thing could also be a vacuum leak.

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Prost!

I know one of them is missing now too. weee. this should be fun

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

Red- Where does this connect to, and how. Pictures would be lovely (borrowed the pic from the wiki)

Yellow. Wires that broke now

Attached Thumbnails

 

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

It's been a while since I've had a 104, but I believe that connects to the EGR.

__________________

Gone to the dark side

- Jeff

EGR is hooked up

__________________
hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

final update, I got a new harness in. Idle issues and hesitation are gone. It was the control harness.

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed