I went away for 4 days and when I returned, the car shut off normally. For a day... Today it ran on again, so I dropped it at the shop.
Diagnosis: Vacuum pump diaphragm was leaking oil, causing attached hose to swell and intermittently fail. The tech was able to clean it off and make it tight again, but this will likely recur, so I need to replace this part. https://www.ebay.com/itm/VACUUM-PUMP-DIAPHRAGM-MERCEDES-300-D-123-130-W123-03-1979-11-1985/272409085197?hash=item3f6cd8c50d:g:IEIAAOSwmLlX~IX~&vxp=mtr On Sun, Feb 18, 2018 at 10:28 AM, MG via Mercedes <mercedes@okiebenz.com> wrote: > OK Do a Google search for Diagnosing Mercedes vacuum shutoff. It's all out > there in exhausting detail. If you don't understand what you find then take > it in and get it done. > > > Andrew Strasfogel via Mercedes wrote: > >> Well, I will probably have to do that, but I was looking for some guidance >> on how to diagnose it myself. >> >> On Feb 18, 2018 7:36 AM, "MG via Mercedes" <mercedes@okiebenz.com> wrote: >> >> shortcut all the talk and take it to your indie and have him fix it. >>> >>> Andrew Strasfogel via Mercedes wrote: >>> >>> My '83 300TD won't turn off except by manually pressing the shutoff under >>>> the hood. >>>> >>>> Vacuum locks are OK. I've BTDT but too long ago to remember. Any >>>> suggestions on how to go about diagnosing the cause? >>>> >>>> Andrew >>>> 1983 300TD >>>> 362 k >>>> _______________________________________ >>>> http://www.okiebenz.com >>>> >>>> To search list archives http://www.okiebenz.com/archive/ >>>> >>>> To Unsubscribe or change delivery options go to: >>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>>> >>>> >>>> >>>> _______________________________________ >>> http://www.okiebenz.com >>> >>> To search list archives http://www.okiebenz.com/archive/ >>> >>> To Unsubscribe or change delivery options go to: >>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >>> >>> >>> _______________________________________ >> http://www.okiebenz.com >> >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com >> >> >> > _______________________________________ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
