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View Full Version : 300 TDI needs new glow plugs. Bosch or original Beru?


sundogcwolfe
December 12th, 2009, 08:49 AM
Need to replace my glow plugs. I have read that there "are better glow plugs available" and I have read reference to Bosch glow plugs. I have not been able to find a Bosch part number for glow plugs for the 300 TDI.

Any body isng Bosch glow plugs? Like them? part number?

It is cold up here in northern Minnesota. Good glow plugs would make me happy. Just like a wool cap and a decent pair of choppers. (And some times a little brown fluid in my coffee)

Cwolfe

Red90
December 12th, 2009, 09:09 AM
There has been a lot of debate on TDIClub on glow plug brands. In the end it does not seem there is any reliability difference between Bosch and Beru. The only important bit is to replace them all so that they match. This seems to affect life.

Sorry, I don't have the number. Pull one out and the part number is on the side.

Follow-up Post:

http://www.bosch.com.au/content/language1/downloads/Glow_plug__Contents_New_layout.pdf
Maybe 0 250 201 039 It seems to be very common.

Dennis
December 12th, 2009, 11:40 AM
In looking at http://www.bosch.com.au/content/language1/downloads/Glow_plug__Contents_New_layout.pdf on page B25, the Disco tdi lists part # 0 250 202 040.

I bought some plugs RDS George years ago. He sold me Champion CH178. I have yet to use them as I only use my glow cycle in the winter. I bought some Beru for my BMW 524td a few years back. They did not last a year. Returned them for a full refund & I now insist on Bosch. The Bosch last a good long time, 3 to 4 years & this car uses the glow cycle every day. I do have a hard copy of the Beru catalog dated 2003, but most of the plug numbers seem to be outdated.

Another note, the plugs need to match the glow plug relay system, the glow cycle is calibrated to match the plugs & relay.

Manimal
December 12th, 2009, 03:21 PM
How do you know when it's time to get new ones?

KevinNY
December 12th, 2009, 04:47 PM
Truck doesn't start or starts rough and runs on less than 4 cylinders for a bit with smoke.

Chaucer
December 12th, 2009, 10:19 PM
I'm starting to think my glow plugs are going out based on Kevin's description. Wasn't there also another way to tell they're going out using a multimeter?

Found it: http://www.d-90.com/forum/showthread.php?t=17185&page=2&pp=20&highlight=glow+plug+meter

Antichrist
December 13th, 2009, 07:22 AM
The only important bit is to replace them all so that they match. This seems to affect life.Interesting. I can see that being a factor on the early 2.25's that had them wired in series, but don't see how good glow plugs wired in parallel would be affected by having one or more bad ones.

diesel_jim
December 17th, 2009, 08:51 AM
Just in case it helps, the BERU # for the plugs is: 0100226129A 12v, probe type,

cold to max temp (850deg c) time: 8 seconds

Antichrist
December 17th, 2009, 11:20 AM
Interesting. I can see that being a factor on the early 2.25's that had them wired in series, but don't see how good glow plugs wired in parallel would be affected by having one or more bad ones.I mean one or more old ones mixed with new ones.

Dennis
December 17th, 2009, 11:26 AM
How do you know when it's time to get new ones?
For Bosch, when the Ohm reading is 0.4 or better (>) they are good. The bad ones I've had always read zero. The ohm reading MUST be done with the engine dead cold.

Red90
December 17th, 2009, 11:29 AM
For Bosch, when the Ohm reading is 0.4 or better (>) they are good. The bad ones I've had always read zero. The ohm reading MUST be done with the engine dead cold.

Bad ones normally read infinite, not zero. Zero would be a dead short and fry the electrical system.....

artm
December 17th, 2009, 09:36 PM
Anyone get pricing on the Bosch or Champion ones?

I've been relying on the Eberspacher coolant heater to get me by in Boston temps but should look into the plugs. That's with one battery. I do recall that when I had two batteries it was never a difficult time starting, with glow plugs engaged and assumed operating.

Reading the Bosch data sheet, it says that newer designs allow for a continued glow period of several minutes after ignition. This seems like a very good idea and perhaps simply implemented with a change of timer.

Worth looking into...