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#1
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Intermittent no glow - '85 300d
Last week or so on cold starts the glow relay isn't engaging on the first try. Always comes to life if I turn the key back to O then try again.
I did find an old post by Kerry where he talked about a similar problem and he opened up the relay and cleaned the contacts. Is this the best/usual course of action? Kerry, if you read this, did the cleaning make any difference on the '84 SD?
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Mac 2002 e320 4matic estate│1985 300d│1980 300td Previous: 1979 & 1982 & 1983 300sd │ 1982 240d “Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22 |
#2
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What is the symptom? |
#3
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No glow light.
No preheat (motor starts very hard).
__________________
Mac 2002 e320 4matic estate│1985 300d│1980 300td Previous: 1979 & 1982 & 1983 300sd │ 1982 240d “Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22 |
#4
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The issue with no glow light can be a couple of plugs that are not working. I would check that first prior to condemning the relay as intermittent.
Relays don't usually fail to work one minute and then magically work in the next attempt. |
#5
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I agree on the observation on the relay, in the past they have either worked or not, but I did find the post where Kerry had the same issue on his daughter's car. He opened up the relay and cleaned the contacts, which initially fixed it, but the issue came back soon after. If I return the key to KPO and retry it glows normally and starts flawlessly.
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Mac 2002 e320 4matic estate│1985 300d│1980 300td Previous: 1979 & 1982 & 1983 300sd │ 1982 240d “Let's take a drive into the middle of nowhere with a packet of Marlboro lights and talk about our lives.” ― Joseph Heller, Catch-22 |
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#7
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Cleaning the contacts did extend the period between failures to connect but not significantly. I ended up replacing the relay.
__________________
1977 300d 70k--sold 08 1985 300TD 185k+ 1984 307d 126k--sold 8/03 1985 409d 65k--sold 06 1984 300SD 315k--daughter's car 1979 300SD 122k--sold 2/11 1999 Fuso FG Expedition Camper 1993 GMC Sierra 6.5 TD 4x4 1982 Bluebird Wanderlodge CAT 3208--Sold 2/13 |
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