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Old 12-08-2003, 09:04 PM
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Join Date: Aug 2002
Location: NE Okla
Posts: 1,104

Think that your whole problem is the car just really didn't want to leave Oklahoma. Maybe you should consider leaving it here for us Okies!
1961 190Db retired
1968 220D/8 325,000
1983 300D 164,150
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Old 12-10-2003, 02:58 PM
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Join Date: Dec 2003
Location: Festus MO
Posts: 762
A quick update....

I tested all 5 glow plugs - none of them were working. I have ordered a set of 5 new ones, along with a block heater. I got the new design pump primer also. I'll be doing some wrenching this weekend. If new glow plugs, pump primer, and a block heater won't get it started, there is something major wrong.

I briefly tried the tow-starting routine the other night, but I couldn't get the engine to turn over with the trans. in drive, second, or low. Is this an indication of a trans. problem, or just a result of the car sitting for over a year? I towed it to speeds up to 30-35 mph with no success.

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Old 12-10-2003, 03:49 PM
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Join Date: Dec 2003
Location: Festus MO
Posts: 762

Before unhooking anything, I checked for 12 volts at each glow plug while the relay was "on". All 5 plugs had 13 volts. The power supply is OK.

Then I started looking at the individual glow plugs.

I disconnected the wiring harness from the glow plugs (at each glow plug). Then I made a "hot wire" to hook to the positive terminal of the battery. I used this jumper wire to check each plug, looking for some sparking/arcing as the wire touched the trheaded terminal of each glow plug. None of the glow plugs seemed to be drawing any current when tested this way (i.e. no spark or arc when the test wire was applied). Then I pulled the first glow plug out of the engine, grounded the outer housing, and put 12 volts to the end terminal. It did not get hot.

That was my "shade-tree" test method. Let me know if this methodology is not applicable.

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Old 12-10-2003, 04:29 PM
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Join Date: Jun 1999
Location: Land O Lakes, FL
Posts: 3,086
Originally posted by Jetmugg
I tested all 5 glow plugs - none of them were working
That sounds very odd. Tested them how? Did you check the strip fuse in the glow plug relay?
Rick Miley
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Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
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Old 12-10-2003, 07:18 PM
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Join Date: Aug 2001
Location: Evansville, Indiana
Posts: 8,150
Dead glow plugs, for sure. I'd bet the PO just ignored the lack of a glow light and kept trying to start it till enough of the GPs were dead that it wasn't gonna go. You really have to have at least 4 or them working some to get it to start!

Replace all 5 -- I'd bet they are all dead. Should have about 0.6 to 0.8 ohm resistance when good.

1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
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