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Mercedes 230e after having another transmission put it the car it overheated coming home and blew a head gasket, is the cooling system connected in anyway to the transmission

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  • Cars & Trucks Master
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There is normally a cooler in the radiator that cools the oil for the transmission. If the new transmission has a problem and generated excessive temperature in the oil that would be transferred to the engine coolant and could cause it to over heat. I would have the radiator check for blocked cores and the cooling fans were working before I started on the transmission shop as if the radiator was borderline before, it would not handle the extra load from the transmission. If it checks out ok then I would be asking why the oil got so hot that it overheated the engine As a side suggestion after you have sorted out the problems ,it is always a good idea to consider a air cooled system for the transmission oil as it removes the extra heat going into the radiator.

Posted on Jul 23, 2013

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Posted on Jan 02, 2017

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SOURCE: over heating

try having your radiator pressure checked , or replacing your cap

Posted on Sep 16, 2008

juggernautxt
  • 145 Answers

SOURCE: blown head gasket .... ran the car hot

sealers usually end up costing you more in the long term than the short term. these sealers react to heat and air. so you end up doing nothing more than plugging up you radiator, water passage ports, water pumps get damaged. causing more over heating problems than they solve. no i would go for what the shop gave you as a quote. that seems a pretty reasonable quote for the position you are in.

Posted on May 07, 2009

  • 6982 Answers

SOURCE: 1999 Cadillac Seville STS Overheating

Sounds more like an ignition control or coolant flow problem. Or, a/c fan not coming on with a/c.
Getting the water pump question out of the way, the pump either works or not. If it leaks it will cause an overheat due to coolant loss on flat ground or grades...doesn't matter. If the pump bearing or seal is bad it will still pump, it will just be loose and noisy. Coolant flow through the radiator is also essential...I don't think you have a problem there because generally this happens with less maintained higher mile cars.
A bad map sensor can cause your problem because it changes both ignition timing and fuel mixture, either of which can cause very high temps in combustion chambers especially when under a load. Mass air flow sensor can also do this but usually will cause idle problems. If fan is not on with a/c if the remainder of your cooling system may be enough to maintain decent temp control but cannot do this under a load. A/C turned off removes some load and therefore allow you to get up hills. Operating marginally, you can be pushing some coolant out of the system at times without even knowing it.
Now, about your engine: These engines are in my opinion a very poor design to begin with. Even with the best maintenance and low miles, they don't handle temperatures well. at this point, I'd be concerned that after repeated overheats and near overheats, your head gaskets may have started to fail, even though they were not the cause of the problem.Keep that in mind.
Have the items I mentioned tested. If you finally have the problem solved I suggest you change the thermostat as well...Overheating makes them unreliable.

Posted on Jul 27, 2009

c17hydro
  • 2984 Answers

SOURCE: My 1998 Oldsmobile Aurora, is overheating!

You didn't mention replacing your water pump....that is what it is if you have NOT replaced it.

Posted on Oct 09, 2009

Testimonial: "Yes, I have bought the tool and pump to replace and after it is fix, I will contact you Thank you Tasha"

GeoffW1
  • 3961 Answers

SOURCE: 1994 Toyota Camry LE V6 Overheating, Steaming Engine--Blown Head Gasket??

It is best to be systematic about this. It could be either the water loss or the overheating which is the basic cause, either one could come first.

- there is a test for combustion gases in the water jacket, from a blown head gasket. This will very quickly cause overheating, and the excess pressure will blow the water out the overflow reservoir. If the car has already overheated and died, this is unfortunately quite likely

http://www.youtube.com/watch?v=1_SIwHMLmkM


- the temperature sensor in the block may have failed. This will prevent the fans from running when the engine overheats, and you can see this. The fans are not driven by a belt. P68....

http://www.turboninjas.com/camry/eg2.pdf


- the thermostat may have stuck closed. You will have to get it out and test it, but this is not difficult. See p328


http://www.turboninjas.com/camry/eg2.pdf


- this model of Camry has a plastic top tank to the radiator, which eventually cracks. Look there carefully.

- it may be that a radiator hose has gone soft and closed up. Check they are allowing good coolant flow.

- it could be that in a car this age that the radiator has silted up and is not allowing coolant through. Disconnect the top and bottom radiator hoses, when cool, and run water through from a garden hose to get some idea about that.

Posted on Sep 29, 2012

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Possibly blew a head gasket allowing combustion gases to enter the cooling system and force coolant out of the overflow tank. This can be verified by doing a compression check on each cylinder.

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A blown head gasket or intake gasket does not always put coolant into the oil or produce smoke.. If the gasket blew between an oil vein and coolant vein then there is a possibility that your actually pushing the oil into the coolant side.. When the car is cool... look at your antifreeze and see if it has the oil slick look to it.. That being said it could be a head gasket or it could be in the intake as well..

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To have high pressure in the coolant system you have compression pressure escape into the coolant system. If you simply replaced the head gaskets without checking for cracks or having the head machined to eliminate warped head then you have pretty much wasted your money as the problem still exists. You will have to pull the head again and have it checked out. Put a coolant system pressure tester in place of the radiator cap and start the engine and see if there is a rise in pressure on the gauge.

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Sorry to say the head gasket is still shot, and you probably have cracked the cylinder head too.
The excessive pressure in the radiator and the overheating is compression going from the cylinders to the cooling system. You may not be leaking coolant into the oil as fast as you were, but its still letting compression into the radiator.

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white smoke from the exhaust and overheating would almost certainly mean a blown head gasket.
the head gasket has gone between a cylinder and a cooling channel so exhaust gasses can get in to the cooling system resulting in the boiling and water from the cooling system is getting into the cylinder resulting in the white smoke (actually steam) from the exhaust.
the exhaust manifold is a separate issue that can be replaced when the head gasket is repaired.

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ah why r u working on car replacing the head gasket when you know so little on working on cars. you MUST put gasket sealant at least when replacing any gasket

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is cooling fan coming on? I assume it's electric. Also, be sure you don't have air trapped in the system.

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It's possible that engine coolant is making it's way into the cylinders (in other words a blown head gasket). I had a Pontiac that blew a head gasket, it was blowing white clouds out the tailpipe. It's a pretty involved job to repair but it is doable by a backyard mechanic. You'll want to check for oil in the coolant and coolant in the crankcase oil. Also do a compression & leakdown test on the cylinders.

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