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Mercedes 123 Vacuum Door Lock Diagnosis Tip by Kent Bergsma

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Uploaded by on Mar 16, 2010

http://www.mercedessource.com - A possible reason on why your vacuum door locks might not be working. For more info check out my website and my "123 Vacuum Door Lock Advanced Troubleshooting and Repair" manual.

http://mercedessource.com/node/3486

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Uploader Comments (Mercedessource)

  • good video! question...when I lock the driver's door, the other door locks take about 2 seconds to go down. is this about the right amount of time?

    btw, i have spent over well over $1000 with mercedessourcedotcom for parts and my 123 is now tip-top. the $'s i have saved and Kent's instrux manuals are VERY worth it, as i wouldn't have been able to afford to keep the car on the road as my daily driver otherwise. thanks kent!

  • @nhojcam Yes there is normally a delay.

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  • I'm thinking about buying a 240 or 300d sometime in the future, so I'm doing my research before hand to see what I'm in store for. You learn about a particular car and learn about it inside out (mine being Volvo 240's).

    Just wanted to compliment you on the great video's you have. Very informational!

  • nice video! ive got a -83 240D but has no problem with the vacuum locks, just noticed a bit of delay for the rear left door (locks last) to go down but only like a few seconds.. they are as good as bulletproof these cars, gotta love´em!!

  • hi i have some question. my w123 200 always fail of tuning co.

    every time i top up full tank of petrol early morning difficult to start up the engine. if the engine start running will come a bit black smoke.let the car warm up 2min then ok and smooth. if the petrol less very easy to start the engine .

  • I have a 1998 ml320 and the door locks will not pop up with the key. The remote is lost. If you close the door it is always locked. To open the lock I have to insert the key and hold tension on it and open the door handlel. If the key is in the car and I close the door then I"m fu__ed. Got any ideas what it is. Are these vacuum actuated??

  • thank you

  • I've watched a couple of your videos. Awesome stuff. I don't own a MB right now but I want to get a 300 SD. I will definitely be getting some of your tools if I find the right 300. P.S. You would make a great auto shop teacher.

  • I run my w123 on used sunflower oil, there's no difference with gas-oil

  • Smoke machine is your best friend when I look at vac sys issues.

  • Thanks ken, my driver side is not working...but it will soon:)

  • verry helpful

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