MarkP80
Active Member
Hi all,
Started what I thought would be an easy job on my W203 C180K at the weekend, changing the thermostat. However, when I went to drain the coolant, with the slightest touch the coolant drain plug sheared off. Now, I don’t know if this was a bodge by a previous owner, or if the plastic plug has just degraded with time, but I obviously need to fix this (although there’s no leak at the moment).
So, the drain plug should be a couple of inches long, with a couple of o rings on it - so most of that is still in the radiator. What I’m not sure about is how the female part in the radiator is constructed. Is that bit plastic as well? What am I actually looking at in the photo below? I can see what appears to be the sheared plug, then is that an o ring in the female part? And by the looks of it, the female part is red plastic as well - is that correct? Or is that a red washer which comes out?
I’d really like to know how the radiator socket is constructed, before I try getting the plug out, as I don’t want to damage the radiator in the process. Does anyone have an exploded view of this section?
Any help would be much appreciated.
Cheers,
MarkP
(And apologies if I’ve uploaded those photos incorrectly, I was having a few problems with that process!)
Started what I thought would be an easy job on my W203 C180K at the weekend, changing the thermostat. However, when I went to drain the coolant, with the slightest touch the coolant drain plug sheared off. Now, I don’t know if this was a bodge by a previous owner, or if the plastic plug has just degraded with time, but I obviously need to fix this (although there’s no leak at the moment).
So, the drain plug should be a couple of inches long, with a couple of o rings on it - so most of that is still in the radiator. What I’m not sure about is how the female part in the radiator is constructed. Is that bit plastic as well? What am I actually looking at in the photo below? I can see what appears to be the sheared plug, then is that an o ring in the female part? And by the looks of it, the female part is red plastic as well - is that correct? Or is that a red washer which comes out?
I’d really like to know how the radiator socket is constructed, before I try getting the plug out, as I don’t want to damage the radiator in the process. Does anyone have an exploded view of this section?
Any help would be much appreciated.
Cheers,
MarkP
(And apologies if I’ve uploaded those photos incorrectly, I was having a few problems with that process!)