Diesel RVs

Last case I heard was an electronic key that had fallen behind a dresser drawer.

Tom Hanson
Mercedes Benz Classic Center USA
MBUSA, LLC
thomas.hanson@mbusa.com
949 598-4842 direct
949 598-4870 fax

From: Nate <vwnate1@yahoo.com>
To: diesel_mercedes@yahoogroups.com
Sent: Tuesday, July 9, 2013 6:09 AM
Subject: [diesel_mercedes] Keys

As surmised , the very same day that Tom Hansen told me he'd shipped my four new keys , SWMBO called me @ work to let me know she'd found my Coupe's key under the bed ~ apparently I'd left it in my pants back pocket & washed them , when I carried the dry clothes into the bedroom for sorting & folding @ 0-Dark:30 the key dropped to the floor and I kicked in under the bed....

Oh well .

In any case , Tom's new keys cut from the master according to my VIN , fit my 387,000 + mile locks (ALL of them) like the car was new again ~ I am well pleased and got four keys delivered to my door for less than the dealer wants .

I'm driving it again and the AC is working fine , gotta love that R-12 freon . we're forecasted to be 102° F to - day .

-Nate

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Chip,

Congrats on reducing the current drain by cleaning the connections.

Since your's is a 1982, it's got parallel glowplugs, rather than the serial circuit of earlier cars.

The 'dead' glowplug light on the dash is a DESIGNED IN indicator. When it fails to light, it's telling you that at least two of your glowplugs have failed (gone open). When two or three go bad, then you will automatically have trouble starting (remember what the glowplugs are for).

Ask me how I know - mine is a 1981, 300SD. Same engine that you've got. With a lot of cranking, it would light off even into the Los Angeles winter (cooler than Houston summer). But as soon as I put new glowplugs in, the dashboard light came back on and the engine now starts in about 1/4 turn.

In a message dated 7/9/2013 7:29:13 A.M. Pacific Daylight Time, czulli@gmail.com writes:

So...I had been having this recurring problem of burning out the 70A fuse block on my relay every few weeks in my 1982 300CD turbo. I probably put in 8 different fuses in a 6 month period of time.

Then I got to looking at the two screw mounts for that fuse bar and found one of the two screws with a good but of tarnish and corrosion. I took out the screw and both washers and really polished them back to new again along with the copper bottom of the relay itself. Put it all back together and I have not had to replace the fuse link since. It has been maybe 6 months of the 70A bar fuse holding without replacement.

But...there are now occasions when my glow plug light on the dash will not come on. On those occasions I have to start the car without the aide of glow plugs and it takes a good bit of fast cranking before she fires up. (good thing I live in Houston in this summer heat)

So I am still thinking it is something in the relay that does not always get power over to the glow plugs or the ignition might not be feeding power to the relay block.

I would love to have some ideas from the board about what might be going on.

Chip
Houston