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#1
06-05-2008, 12:04 PM
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Glow plug dash light blinking...
...So when I get ready to warm the plugs up to start the car, the dash light starts blinking. Is that a bad relay or do I have a bad glow plug? And this is for a 1980 300SD.
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Current: '95 E300D 282K '85 300D - 253K '11 Subaru Forester Before: '97 E420 - 135k '80 300SD - 269K '66 200D - ???K 
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#2
06-05-2008, 02:53 PM
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I suppose the filiment in the bulb could be having problems or a loose/poor ground somewhere, but I think you will end up having to do a check of the Glow Plug system.
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84 300D, 82 Volvo 244Gl Diesel
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#3
06-05-2008, 06:59 PM
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Do Benzes have any kind of water separator on them? (besides the one on the fuel filter)
-Jason
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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket  Tesla Model 3. 205,000 miles. Been to 48 states! Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels. 2014 Cadillac ELR 2013 Fiat 500E.
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#4
06-05-2008, 07:50 PM
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Glow and H2O
Diesel Giant has a "Glow System" test sequence on his web site.
No other water separator,Unless some genius PO has replaced the stock secondary with a WS equipped Racor unit!(Bleed the H2O out and be warned electronically when it's time to!)
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'84 300SD sold 124.128
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#5
06-05-2008, 08:16 PM
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I'll check out D. Giant's test. Funny thing is now it's working just fine. It has been an intermittent issue for a while just gotten worse lately. Did a visual and no corrosion on the terminals and the "fuse" link looks good and tight. Thanks!
__________________
Current: '95 E300D 282K '85 300D - 253K '11 Subaru Forester Before: '97 E420 - 135k '80 300SD - 269K '66 200D - ???K
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#6
06-05-2008, 08:27 PM
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Reason I asked is the 2nd generation golf / jetta diesels are equipped with a (rather large!) separator unit by the fuel tank, and when it gets water in it the glow plug light will flash.
-J
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#7
06-05-2008, 09:08 PM
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Quote:
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#8
06-05-2008, 09:21 PM
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nod nod blink blink
blinking tells you that something is going south but NOT how fast.
mine blinked periodically for years until finally the relay went out (after I had the plugs replaced). get ready.
__________________
1979 300D 220 K miles 1995 C280 109 K miles 1992 Cadillac Eldorado Touring Coupe 57K miles SOLD ******************** 1979 240D 140Kmiles (bought for parents)  *SOLD.SAN FRANCISCO/(*San Diego) 1989 300SE 148 K miles *SOLD
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#9
06-06-2008, 02:17 AM
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Quote:
However Deliveryvalve and I are about to finish up on modifications to the stock filter housing so that a lower Micron, longer filter with a drain on the bottom can be used. I believe Deliveryvalve said the filter media inside of the filter is designed tor repel water. Here is the thread where we posted the information concerning what we are doing. He is shiping me the parts so that I can modify them. Also there is info from other members concerning using a Staynadyne water separator. Lowest Fuel Filter Micron Rating Also in this thread is my setup (that is on my car right now) to mount a (NAPA 3528) 2 Nominal Micron filter (the stock filters are 10 Nominal Microns) in place of the stock secondary spinon filterwhich is a large filter but has no drain. I found out that the CAT version (1R-0750) of the filter I am using is a 2 Micron Absolute filter an I have one comming from Ebay to replace the NAPA filter.
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84 300D, 82 Volvo 244Gl Diesel
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