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Car Forum / Mercedes-Benz Cars / March 200587 300td smokes till warms up
wierd deal, my trusty 300td wagon that i love has started smoking untill it warms up. white smoke. is this the injector pump or some such ? White smoke is coolant burning out of the exhaust manifold as it heats up. Check the coolant level - white smoke often is the symptom of headgasket failure or, worse, a cracked head. > White smoke is coolant burning out of the exhaust manifold as it heats up. > > Check the coolant level - white smoke often is the symptom of > headgasket failure or, worse, a cracked head. Sometimes if it's not very dense, it could also be steam as the humidity depending on atmospherics. This would be a happy situation compared to a head gasket or worse... Marty PS Usually if it's a head gasket or crack you will get a good amount of white smoke. I mean a GOOD amount. It doesn't take much coolant to produce a huge cloud. >wierd deal, my trusty 300td wagon that i love has started smoking untill it >warms up. white smoke. >is this the injector pump or some such ? No, it's burning coolant. Roses are red, oil smoke is blue, fuel smoke is black, it's bad news for you.  SignatureNeed Mercedes parts ? - http://parts.mbz.org http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org 633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net 1970 280SE, 72 280SE | Old wristwatches http://watches.list.mbz.org Could it simply be condensation being burned off from the exhaust system??? >Could it simply be condensation being burned off from the exhaust system??? Could be. Assuming you have somethibng other than just waterin the rad then you would be able to smell a sickly sweet odour from near the tailpipe if you'e burning coolant. Burning coolant will be a denser smoke and won't go away just after startup. SignatureNeed Mercedes parts ? - http://parts.mbz.org http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org 633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net 1970 280SE, 72 280SE | Old wristwatches http://watches.list.mbz.org dunno, i think its the head gasket, it has an alum head and iron block and it's got over 350000 miles on it. the local mechanics school is doing gaskets right now so i may drive it over and let them replace it. ive never let it get hot so i doubt that it's got a cracked head. > Could it simply be condensation being burned off from the exhaust > system??? > dunno, i think its the head gasket, it has an alum head and iron block and > it's got over 350000 miles on it. > the local mechanics school is doing gaskets right now so i may drive it over > and let them replace it. > ive never let it get hot so i doubt that it's got a cracked head. Is it loosing coolant? > > Could it simply be condensation being burned off from the exhaust > > system??? just when i thought it might be the head gasket, im not sure again. it's starting to get warm here in texas now and sat morning i started it and drove it a little and it didnt smoke abnormally like it does when it's cold. this is definately a temprature related problem. i think ill take it to someplace where they use uv lights etc. to find leaks. if it's the head gasket, it will show up. > wierd deal, my trusty 300td wagon that i love has started smoking untill > it warms up. white smoke. > is this the injector pump or some such ? > just when i thought it might be the head gasket, im not sure again. > it's starting to get warm here in texas now and sat morning i started > it and drove it a little and it didnt smoke abnormally like it does > when it's cold. this is definately a temprature related problem. > i think ill take it to someplace where they use uv lights etc. to find > leaks. if it's the head gasket, it will show up. It's NORMAL for a vehicle to emit white (steam) vapor when running from cold on a cold day. This is ambient moisture vaporizing. It's hard to tell from here if there is really an issue at all or you are just being paranoid. That said, it's also quite possible that the contraction of the metals during cold temperatures allow for some AF to leak into the combustion system. Are you loosing coolant????: If not, you don't have a problem. Marty never used to do this, obviously something has changed. is that paranoid ? had the car for years and this white smoke just started, seems to be worse when cold. >> just when i thought it might be the head gasket, im not sure again. it's >> starting to get warm here in texas now and sat morning i started it and [quoted text clipped - 16 lines] > > Marty > never used to do this, obviously something has changed. is that paranoid ? > had the car for years and this white smoke just started, seems to be > worse when cold. IS IT LOSING COOLANT??? If not, you are just losing your mind... Marty |
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