This came in the spare parts bin with my newly acquired W116. It is new, but has no part number on it that I can tell. Anybody know what it is?

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1980 300SD 237k
1983 300D 195k (sold)
2003 Chevy Silverado 190k

Looks like a transmission vacuum modulator to me.
Tom

I had originally thought that also, but there is no fitting for a vac line

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1980 300SD 237k
1983 300D 195k (sold)
2003 Chevy Silverado 190k

My guess is either a coolant temp sensor or boost pressure sensor.

EDIT: Cool keychain

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Chad
2006 Nissan Pathfinder LE
1998 Acura 3.0 CL
OBK#44
"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)

SOLD
1985 300TD - Red Dragon
1986 300SDL - Coda
1991 - 300TE
1995 - E320
1985 300CD - Gladys

A boost pressure sensor might make sense....hmmm

Good eye on the keychain!!...I have to admit I'm a Trekkie

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1980 300SD 237k
1983 300D 195k (sold)
2003 Chevy Silverado 190k

It's a squiddley-spoodge! Actually, I have no idea, either and I am a W116 guy. It looks like something that would go under the dashboard.

is that a sight glass? it might be some sort of sensor for the AC.

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1985 300TD Turbo Euro-wagon
1979 280CE 225,200 miles
1985 300D Turbo 264,000 miles
1976 240D 190,000 miles
1979 300TD 220,000

GONE but not forgotten
1976 300D 195,300 miles
1983 300D Turbo 175,000 miles

http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg

I haven`t seen one like that, but first thought was a oil pressure sender.

Some type of pressure sender for sure.

charlie

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there were three HP ratings on the OM616...

1) Not much power
2) Even less power
3) Not nearly enough power!! 240D w/auto

Anyone that thinks a 240D is slow drives too fast.

80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff

We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works

I was thinking oil pressure sender too.

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1984 300SD Turbo Diesel 150,000 miles

OBK member #23

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(")_(") signature to help him gain world domination

may not even be for a 116. my bin has stuff for cars I don't own anymore. next car I sell, it all goes.

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mjk

'84 300SD 119KMi (Liesl der Diesel)
'84 300D 326KMi when the oil left (former parts car)
'82 300SD 253KMi (new parts car)

Definitely an oil pressure sender. I just replaced one on an 82 SD, but it should fit many years/models. Screws into the back of the base of the oil filter housing. (Be sure to use teflon tape.)

Electric oil pressure sender.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

Yes without a doubt it is an oil pressure sensor. I have a couple including one left over from an 87 300D.

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012

Oli pressure sending unit, I replaced one on my 1992 300D.

My vote is for an oil pressure sender. I've been trying to figure out where to plug in for an oil by-pass filter, so I had my pressure sender out - that sure looks like what I have.

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1995 E300 Diesel
2002 GMC Duramax CC LB 4X4