STD Maintenance General checks your glow plugs... Monark plugs garbage

checks your glow plugs... Monark plugs garbage

checks your glow plugs... Monark plugs garbage

 
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W116Lorinser
OM617.95

147
01-19-2010, 06:23 PM #1
To start off i bought Monark glow plugs from Mercedessource.com 2 months back. the plugs were made in germany and they said were suppose to be better quality then bosch. THE MONARK PLUGS ARE STRAIGHT UP GARBAGE. 4 of the plugs were burned out and only one of the plugs was working. But the plug that was working only heated up towards the bottom INSTEAD of the top were its suppose toAngry.


I removed all plugs scrubbed and reamed all holes to remove the carbon buildup and replaced with all new original Bosch plugs. i havent driven car in couple days and temperature was same when the car was having problems starting.

THE car started right up without any hesitation on the first try. so i will stress to stick with the original parts on these cars and not with aftermarket.. especially the glow plugs.
W116Lorinser
01-19-2010, 06:23 PM #1

To start off i bought Monark glow plugs from Mercedessource.com 2 months back. the plugs were made in germany and they said were suppose to be better quality then bosch. THE MONARK PLUGS ARE STRAIGHT UP GARBAGE. 4 of the plugs were burned out and only one of the plugs was working. But the plug that was working only heated up towards the bottom INSTEAD of the top were its suppose toAngry.


I removed all plugs scrubbed and reamed all holes to remove the carbon buildup and replaced with all new original Bosch plugs. i havent driven car in couple days and temperature was same when the car was having problems starting.

THE car started right up without any hesitation on the first try. so i will stress to stick with the original parts on these cars and not with aftermarket.. especially the glow plugs.

willbhere4u
Six in a row make her go!

2,507
01-19-2010, 08:14 PM #2
The bosch plugs rock! I have seen autolight glow plugs the official glow plug of nascar I kid you not fail in 1 month

Just ask FI how great the bosch plugs are!!! He has drained his battery a couple of time by accidentally leaving them on and they still work even with a couple hours of constantly glowing

1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running
willbhere4u
01-19-2010, 08:14 PM #2

The bosch plugs rock! I have seen autolight glow plugs the official glow plug of nascar I kid you not fail in 1 month

Just ask FI how great the bosch plugs are!!! He has drained his battery a couple of time by accidentally leaving them on and they still work even with a couple hours of constantly glowing


1987 300SDL 6spd manual om606.962 swap project
1985 300td euro 5spd wagon running

Gurkha
Unregistered

31
01-25-2010, 01:22 AM #3
Beru is the best as per my experience followed by BOSCH.
Gurkha
01-25-2010, 01:22 AM #3

Beru is the best as per my experience followed by BOSCH.

Syncro_G
0-60 in 29 sec

280
02-17-2010, 12:11 AM #4
I was happy with the Monarks but I did have one burn out prematurely.
Now the replacement for that one is showing signs of stress - the insulation is starting to pancake around the post. So I'm going to put the Bosch plugs back in.

Other monark products seem to be great though. the GP relay is working well and I love the hand primer pump - feels much more solid than the factory unit.

-Christian

PS - did Bosch update their GP design? I have a set of the original '85 GPs with 54K miles on them. They look good.
This post was last modified: 02-17-2010, 12:12 AM by Syncro_G.

-------------
'84 G-Wagen turbodiesel
'75 240D 4-Speed

Syncro_G
02-17-2010, 12:11 AM #4

I was happy with the Monarks but I did have one burn out prematurely.
Now the replacement for that one is showing signs of stress - the insulation is starting to pancake around the post. So I'm going to put the Bosch plugs back in.

Other monark products seem to be great though. the GP relay is working well and I love the hand primer pump - feels much more solid than the factory unit.

-Christian

PS - did Bosch update their GP design? I have a set of the original '85 GPs with 54K miles on them. They look good.


-------------
'84 G-Wagen turbodiesel
'75 240D 4-Speed

DeliveryValve
Superturbo

1,338
02-19-2010, 07:35 PM #5
(02-17-2010, 12:11 AM)Syncro_G ..
PS - did Bosch update their GP design? I have a set of the original '85 GPs with 54K miles on them. They look good.

For the 616/617, there are two Bosch designs.

Part number 0 250 201 001 - 11.5 v
   
   


Part number 0 250 201 039 - 11 V
   
   


The 0 250 201 039 is what is typically sold.
I believe the 0 250 201 001 is not manufactured any more. Just "new old stock" is left. I have found the 0 250 201 001 last a much longer time compared to the 0 250 201 039.




.
This post was last modified: 02-19-2010, 07:37 PM by DeliveryValve.

Gota love Mercedes Diesels!



.
DeliveryValve
02-19-2010, 07:35 PM #5

(02-17-2010, 12:11 AM)Syncro_G ..
PS - did Bosch update their GP design? I have a set of the original '85 GPs with 54K miles on them. They look good.

For the 616/617, there are two Bosch designs.

Part number 0 250 201 001 - 11.5 v
   
   


Part number 0 250 201 039 - 11 V
   
   


The 0 250 201 039 is what is typically sold.
I believe the 0 250 201 001 is not manufactured any more. Just "new old stock" is left. I have found the 0 250 201 001 last a much longer time compared to the 0 250 201 039.




.


Gota love Mercedes Diesels!



.

Syncro_G
0-60 in 29 sec

280
05-02-2010, 10:26 AM #6
I recently pulled the monarks and am now running Bosch

several were in great shape after the few thousand miles of use but I had to swap a few that in succession, kept burning out.

word has it monark had a "bad robot" in the assembly line that they have since fixed.
That doesn't make a whole lot of sense to me because from what I observed, the problem looked like it was from using insulators with too low a melting point.

But given 4 of the 7 monark plugs I went through were fine, it does look to have been a batch problem.

At this point I have no reason to go back but down the line, they may be a good option again.

-------------
'84 G-Wagen turbodiesel
'75 240D 4-Speed

Syncro_G
05-02-2010, 10:26 AM #6

I recently pulled the monarks and am now running Bosch

several were in great shape after the few thousand miles of use but I had to swap a few that in succession, kept burning out.

word has it monark had a "bad robot" in the assembly line that they have since fixed.
That doesn't make a whole lot of sense to me because from what I observed, the problem looked like it was from using insulators with too low a melting point.

But given 4 of the 7 monark plugs I went through were fine, it does look to have been a batch problem.

At this point I have no reason to go back but down the line, they may be a good option again.


-------------
'84 G-Wagen turbodiesel
'75 240D 4-Speed

 
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