First of all I'm cheap. I had 1 go bad. So I replaced that only one. It was a Bosch that I replaced with a Bosch. So far so good.

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92 300D 2.5L OM602 OBK #59

I needed a quick fix so I went to NAPA... uh oh, Autolite. It has been a few weeks and so far so good. Quick starts on cool mornings. I guess I will wait to find out how bad they are.

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1981 240D 143k 4 spd manual -SOLD

2004 VW Jetta TDI 5 speed 300k -still driven daily

Order the "Real" ones from Phil . . . I had mine in TWO (2) days! That way when yours die, which they will, you will have the proper plugs to put in . . . just a thought . . . although a good one!

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82 240D Manual 277K and still rolling!
02 Volvo S60 AWD For Sale

I like my Bosch Duratherms from NAPA.My improved glow plug controller stays on like maybe 5 minutes.So I can start at dead cold,and haul butt.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

I had 2 of the Autolite Glow Plug tips swell to the point that they were difficult to remove from the Cylinder Head.
And, after only 6 months use here in Sunny CA.

Any place that is cold is even going to be harder on them.

Because the Winters here are so mild I was not worried about them burning out and not working in a short period of time; but, having trouble getting the 2 out because of the swollen tips scared me.
I do not like the idea of having to retrieve a tip out of the Prechamber or some of the other adventures people have had with stuck Glow Plugs.

Anyway I pulled all of the Autolites out of my Engine. So I have the old ones that still work and several New Autolites that I guess are for extremem emergency use only.

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84 300D, 82 Volvo 244Gl Diesel

Our mechanic only uses Bosch

For my '83 300D I've heard of the typical Bosch 80006 glow plugs (Bosch p/n 0-250-201-039 (35T)) but I've also heard of the Duraterm glow plugs. What's the difference between these?

Do the Duraterms require a different relay? I've been searching but came out more confused thanks.

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http://farm8.staticflickr.com/7271/7...144c3fc1dc.jpg

More than just your customer need to read all of this thread Roy!!

Real people with real GP failures & not a multi-meter in sight !!

My guess is that the ones with a short in the body & no heat at the tip would have been about right on a resistance test. Thats what I found in the past.

Pull them out & test them when you do your valve adjustment. It makes turning the motor over easy for the valve adjustment. Do it a month before the cold sets in.
Nice glowing plugs like Christmas tree lights !!

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Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving

I normally go for bosch but after reading here will consider Beru. I would not hesitate to substitute NKG in a pinch though as I have always found them to be good for spark plugs.

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

As I recall reading somewhere, the Bosch Duraterm's have 2 heating elements in series to greatly reduce the likelyhood of coil burnout by throttling down current consumption if the glow plugs are left on for an extended period of time.

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85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked

I have the bosch duraterm and they lasted longer then the beru
I am all bosch duraterm now , great glow plugs

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E300TD year 2000. RUSTY SOLD
cost a fortune to maintain on the road
but run well on WVO
Second Merc died due to corrosion ( NOT rust) How can mercedes get away with that for so long?
Third lasted a month then went away...
Fourth now... Corroded too...

props to bosch duraterms. i had all kinds of starting issues in my '82 300d a couple years ago with new monarks. on a $100 whim, i decided to try the duraterms. my '82 now starts like a new car, even in 0˚F weather. only the tips on the duraterms get hot, which is what you want, so all the sizzle is right there in the prechamber where you want it.

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john
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'98 E300 TD "Lukas" 156K
'11 C300 "Mia" 10K, Gorgeous!, Wifey's Car