Low probability might be an air leak in the fuel system that allows air in so the injection pump looses it's prime. ;-)
I'd start with the preglow system as already discussed, keep this idea in mind if that route doesn't solve the issue. Valves adjusted recently? -- Max Dillon Charleston SC '87 300TD '95 E300 On December 28, 2017 4:27:45 PM EST, Andrew Strasfogel via Mercedes <mercedes@okiebenz.com> wrote: >On my W123 300TD, I am having a hard time getting it started when the >temperature dips below 20 F despite the car being plugged into the >block >heater. It takes 2 minutes of multiple glows and attempts before I can >get >it fired up. Once I get it started the engine runs as if it were >preheated. > >Question: Does this sound like a glow plug issue? Do the plugs wear >out or >simply fail? If one is dead will the other 4 start the car, albeit >laboriously? > >Happy 2018 to all, > >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