81 300SD, I have no key and car has not started in over 1 yr
can I get in without damage?

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81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

82 mercedes 300 SD...mi Unknown
83 Mercedes 300D ????ksniff..gone too
84 Mercedes 300D 148k........SOLD
85 Mercedes 300TD 386k and holding some one elses project

seems to me you need to get power to the aux pump in located in the rear of the car. A charged up battery should do the trick assuming the aux vac pump still works

if you can unlock the one of the front doors this should activate the pump best I can tell from the diagram and the functional description...have power to car, get in car, close door, lock and then unlock and that should actuate the rest of the locks.

you sure there's not a body in there, or is that why you want to open it in the first place?

__________________
1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)

If things get hairy, you can remove the rear seat, look for a large yellow vacuum tube, cut it, and suck on it to actuate the lock. I think there are three maybe 4 tubes there. One set is for the gas cap, the other for the lock. (I think the yellow with green is for the gas cap - but I am not sure!)
"Fix" the cuts with a small piece of standard rubber vacuum tubing.

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It is a truism that almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so. Robert A. Heinlein


09 Jetta TDI
1985 300D

No......I am not sure there is not a body and no one knows where the PO got to.

that should be easy enough, thanks

__________________
81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

82 mercedes 300 SD...mi Unknown
83 Mercedes 300D ????ksniff..gone too
84 Mercedes 300D 148k........SOLD
85 Mercedes 300TD 386k and holding some one elses project

Does this model have the emergency release cord under the backseat?

dunno.

ANYBODY KNOW?

__________________
81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

82 mercedes 300 SD...mi Unknown
83 Mercedes 300D ????ksniff..gone too
84 Mercedes 300D 148k........SOLD
85 Mercedes 300TD 386k and holding some one elses project

I had the same problem with an '83 SD that I recently purchased. I tried all the keys which came with the car, but none of them would turn the lock. I looked for a cable release, but the car doesn't have one. I tried sucking and blowing into the yellow line under the back seat, without success. I tried hitting the lock with a hammer and a block of wood. I ended up drilling the lock out, and then finding that the lock was seized. If I had lubricated the lock before trying the keys, one of them might have worked.

From my search of this problem, I learned that some cars alarm systems can prevent the trunk from opening. I looked under the front passenger side carpet to see if the alarm was unplugged, and found that my car does not have an alarm.

I didn't find any bodies, but I did find a good spare tire, and a new set of jumper cables.

Since you don't have the key, have you contacted a dealership to obtain a key, based on the VIN of your car?

If you don't have the key, and your car doesn't have a cable release under the back seat, you might have a problem. If the trunk lock is in the locked position, you'll have to break something to get it open.

See post # 11
http://www.peachparts.com/shopforum/showthread.php?t=191373

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82 300SD 202K
82 300SD 233K
83 300TD 340K
82 300TD 98k euro (parts on the hoof)
85 300TD 282K
83 300TD 197K

I do believe that is what I will have to do. I will not get a chance to get started on it till the middle of july. Do I need to maintain the pressure while trying to open or will the pressure put it in the unlock position?

__________________
81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

82 mercedes 300 SD...mi Unknown
83 Mercedes 300D ????ksniff..gone too
84 Mercedes 300D 148k........SOLD
85 Mercedes 300TD 386k and holding some one elses project

you don't need to be able to start it to get the vac. pump to work. You just need to put power to the car (e.g. hook up a live battery and make sure fuses are intact)...as stated these don't work like a 123..and if it did, a mityvac (as a substitute for the engine vac pump) would sort you out anyway assuming there's not a massive leak back there.

__________________
1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)

I see what you mean Bob, problem is I don't know what, if anything works on this car

__________________
81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

82 mercedes 300 SD...mi Unknown
83 Mercedes 300D ????ksniff..gone too
84 Mercedes 300D 148k........SOLD
85 Mercedes 300TD 386k and holding some one elses project

well quick, get a battery on the car. we all want to hear what happens next.

__________________
1982 300TD 210K miles ("The Replacement" aka "The Anvil") - SOLD
1979 300SD 245K miles (never ending project)
2007 Pinarello F3:13
1995 Ducati 916 (SOLD, sniff)
1999 Ducati 900SSie (SOLD)

No need to maintain pressure. Just apply until you hear the lock actuators move to unlock position.

__________________
82 300SD 202K
82 300SD 233K
83 300TD 340K
82 300TD 98k euro (parts on the hoof)
85 300TD 282K
83 300TD 197K