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Classic Cars Mercedes 300D Suggestions
2231 messages, Last post on Nov 11, 2009 at 9:21 AM
You are in the Classic Cars Forum. Your Host is mr_shiftright
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I just replaced the battery and the security horn will not turn off until 30 seconds or so. I ran the car to charge the vacuum system so the locks will work and turned the car off. I locked the doors, unlocked the doors, and started the car but the horn started to go off again. Any ideas on hoe this will stop? -Ryan
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Replying to: wineguy321 (Aug 31, 2009 2:04 pm)  That's what I'd do, anyway.
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Engine will just not stop unless I raise the hood and press on the button marked STOP. 'Erwin' (the car) is a real work horse but when thumping on the closed hood and shouting in German finally failed to stop the engine, I figured I needed help. I assume the problem is something to do with the dratted vacuum system; maybe there is a leek in one of the lines to one of the FOUR doors. I can do without central locking, and wondered if there were a SIMPLE way of fixing things so the engine will stop when I turn the ignition key to the off position? With many thanks. James
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Replying to: jameslei (Sep 14, 2009 7:04 pm) Follow that link -he uses pictures, too! (And he sells the parts -only took a couple of days to get them). Easy job-Good luck!
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Replying to: brillanze (Sep 14, 2009 7:22 pm) |
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Hi This is my first post so howdy. My 300d really shakes at idle. It smooths out when i apply my foot to the accelerator and increase the rpms but its probably too high like 1000 . I got a replacement vacuum boost hose that runs from the vacuum pump to the brake booster because the little tap broke off. I do remember when that little piece was good and I would remove it, that the idle would drop. Now it doesn't seem to affect the idle at all??? Any suggestions. I'll probably get a gauge to read the vacuum. 1st step.
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Replying to: bbiofuels (Sep 15, 2009 7:18 am) But if you have low vacuum, I'd do a valve adjustment pronto. Also check your air filter for oil fouling, a common problem on these old diesels because of engine blowby from years of internal wear. |
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After 3 years of consistently good behavior, my 1982 300D won't start. The glow plug light comes on. Once it goes off, the engine cranks normally, but it doesn't start. Afterward, I can smell the fuel (biodiesel). I've checked and replaced both fuel filters. The little manual fuel pump works fine on my car. The air filter is all fine. I had the compression tested a year ago: all cylinders were around 310. The battery was fine, but all the cranking has run it down. Now I've hooked it up to a battery charger that also has a boost setting, so I can still crank with plenty of power. I'm thinking I should more thoroughly investigate the glow plug system using this HowTo from Diesel Giant. Any suggestion on how I can get the car started? One other thing, it seems that part of my throttle linkage is missing. Most of it is there and working, but this part (not sure what it is), doesn't have the linkage connecting to it anymore. I'm not sure how long this has been the case, but there it is. 
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Replying to: goldcar (Sep 18, 2009 6:20 am)
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Replying to: Mr_Shiftright (Sep 18, 2009 7:42 am) By fuse, it is really just a hunk of metal, right? Also, do you know what that box is in the middle of the picture and how worried I should be that some of the throttle linkage is missing?
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