Might want to check your glow plugs, relay, and CHECK YOUR FUSE. The 84
SD was getting a bit balky, even in warm weather, I replaced a couple of
glow plugs and the relay (which did not appear to be relaying very well
for reasons unclear), and it fires right up (though I have not yet tried
it today after last night way down in the 20s). I CHANGED THE FUSE too,
first thing, but it was OK so that was not the issue. Sort of minimal
stuff that you should probably check as a matter of course, but makes
quite the difference.
Note: changing the glow plugs really benefits from a 10mm (I think)
gearwrench as that is about the only thing I could fit in there easily
to loosen/tighten everything. The relay is easy to change, make sure
you disconnect the battery first.
--R
On 12/14/2010 10:14 AM, andrew strasfogel wrote:
This is a new problem for me. The 1985 300TD recently had a valve
adjustment so I wasn't too worried about it starting in the cold.
Well, I should have been! Yesterday, with a temp of around 23 F.,
after sitting in the street for a mere 6 hours the 300TD barely
started up without running down the (relatively new) battery. I had
to key the glow cycle three times for an additional 10-20 seconds each
time before it fired up.
So how do I diagnose whether this is bad glow plugs or low
compression? Or could it be something else? The car never fires up
quickly in the best of circumstances, compared to the '83 turbo diesel
wagon, although it has adequate power and acceleration. Fuel is
clean, too (I recently changed the tank strainer and other filters).
As always, TIA.
Andrew
1983 300TD starts like a 300TE
1985 300TD needs to be wound up
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To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com