This sits in my trunk, wedged above the fuel tank. It looks like an egg crate. What is it?

Need your car in your signature. But, it is almost certainly your vacuum reservoir.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

Pay no attention to the man with the Presidential names. What you speak of is the antiair reservoir. It's the secret to Mercedes-Benz™ longevity, their timeless good-looks too many other wonderous things to list here. Don't open it or you'll release the antiair and then you will be unable to stop your engine or lock your doors.

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Never a dull moment at Berry Hill Farm.

I'm going to vote for vacuum(AKA anti-air) reservoir... mainly 'cause that's what mine is.

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I suggest we solve high gas prices with environmentalists... unfortunately they don't burn well.
1982 300CD, 220K miles: This vacuum system will be the death of me yet! (OBK #26)
1977 F150 400 C6 2wd, 10.2 sec 1/8 mile with 2.75 gears.
1965 Mustang. Mostly stock... LOL!
2001 Ram 2500, cummins, 5spd, 202k miles.(girlfriends)

Two pictures,apparently, are not worth 2000 words!!!

Even better, we can vote on his car type!
Ummm.... Mercedes... diesel... 80-something....
I'm gonna go all in for 1984 300d.

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I suggest we solve high gas prices with environmentalists... unfortunately they don't burn well.
1982 300CD, 220K miles: This vacuum system will be the death of me yet! (OBK #26)
1977 F150 400 C6 2wd, 10.2 sec 1/8 mile with 2.75 gears.
1965 Mustang. Mostly stock... LOL!
2001 Ram 2500, cummins, 5spd, 202k miles.(girlfriends)

all i see is alot of junk in your trunk. i too will say a 1980ish mercedes

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-Trevor

OBK #12
1980 300SD 333,XXX miles - Totaled
1986 Mazda RX-7 212,XXX miles - impounded and auctioned off
2005 Jeep Liberty CRD Limited 33,000- SEGR, Provent, Fumoto

85 300DT, or D/T or D/Turbo.. whatever you want to call it

Anyway... speaking of vacuum.. if I lock and unlock my car more than 3(ish) times without starting it, the other doors stop locking... do I have a vacuum leak or is this all I should expect?

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1985 MB 300D/T

Fell off the WVO bandwagon when people started trying to charge $2.50 a gallon for dirty vegetable oil.

Are you hitting on him?

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http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

I'm not to sure about that model, but the vac. doors usually work off a seperate pump.


the dashpot is usuall the problem in the system. also check all the lines under the hood (they get the most oil on them, which leads to cracking...)

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-1983 VW Rabbit LS Diesel (5speed, VNT/Giles build)

Then the 300D is unusual.

Yeah, I'm gonna agree. There's 1 vacuum pump on mine. I do not know of a car with 2. Now you can have 2 vacuum reservoirs I think. The second goes in the engine compartment and looks like a coffee can.

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I suggest we solve high gas prices with environmentalists... unfortunately they don't burn well.
1982 300CD, 220K miles: This vacuum system will be the death of me yet! (OBK #26)
1977 F150 400 C6 2wd, 10.2 sec 1/8 mile with 2.75 gears.
1965 Mustang. Mostly stock... LOL!
2001 Ram 2500, cummins, 5spd, 202k miles.(girlfriends)

it dost have a resevor


when you turn the key, the pump kicks in and creates vac.

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-1983 VW Rabbit LS Diesel (5speed, VNT/Giles build)

My 86 will lock/unlock days after it was shut off - I can hear an electric vacuum pump operate whenever I turn the key in the latch to "unlock" - but I have no idea if that applies to the 123 or the earlier models.

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~Michael S.~
Past cars:

1986 300SDL
1987 300SDL
1982 240D
1982 300SD


Current:

1987 300SDL

As long as you turn the key far enough to start the engine.