4.4 volt glow plug compatible with 7 volt module?
11-13-2017, 02:28 PM
#1
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GL350 Bluetec
4.4 volt glow plug compatible with 7 volt module?
Hi guys,
I have a 2010 GL350 Bluetec. The glow plug light and check engine light lit up a few weeks ago so I ordered new glow plugs which are Bosch 4.4 volt glow plugs. When I removed the original glow plugs I noticed that they were NGK and 7 volts. Didn't think much about it so I installed the new 4.4 volt plugs.
Now, I'm worried that might not be a good idea as I believe the 7 volt NGK plugs are ceramic and the 4.4 volt Bosch plugs are metal.
My question is whether this would damage the glow plug module which obviously is designed for 7 volt plugs. Or would the module fry the new 4.4 volt plugs or would the plugs somehow damage the module that's designed for 7 volts?
Just trying to get some clarity on my scenario, thanks!
I have a 2010 GL350 Bluetec. The glow plug light and check engine light lit up a few weeks ago so I ordered new glow plugs which are Bosch 4.4 volt glow plugs. When I removed the original glow plugs I noticed that they were NGK and 7 volts. Didn't think much about it so I installed the new 4.4 volt plugs.
Now, I'm worried that might not be a good idea as I believe the 7 volt NGK plugs are ceramic and the 4.4 volt Bosch plugs are metal.
My question is whether this would damage the glow plug module which obviously is designed for 7 volt plugs. Or would the module fry the new 4.4 volt plugs or would the plugs somehow damage the module that's designed for 7 volts?
Just trying to get some clarity on my scenario, thanks!
11-14-2017, 12:36 PM
#2
you have the newer style glow plug system which is 7 volts.
the old one was 4.4 volts
they are not interchangeable and when upon cold start the plugs are loaded for a longer period of time (time is outside temperature - dependent) the 4.4 volts will burn up. when they burn up they might short which will take the controller with them too.
you have been warned.
btw, it is very rare for plugs to go bad... but very common for the controller to die resulting in check engine light and glow plug indicator lit up.... when plugs die they dont generally light up the check engine light.
the old one was 4.4 volts
they are not interchangeable and when upon cold start the plugs are loaded for a longer period of time (time is outside temperature - dependent) the 4.4 volts will burn up. when they burn up they might short which will take the controller with them too.
you have been warned.
btw, it is very rare for plugs to go bad... but very common for the controller to die resulting in check engine light and glow plug indicator lit up.... when plugs die they dont generally light up the check engine light.
