Thanks, that explanation was nice and clear. Just an additional thought for anyone thinking of trying the same test... The thermostat for the N43 engine on my wife's e92 320i is either supposed to open at 97°C or 102°C, depending on the part number. So not all of them should open when submerged in boiling water. (From a quick search for the part number, I think the example here is meant to open at 97°C, so it does seem to be faulty.)
@goldendlolig8237 Жыл бұрын
They are 102 degree units too...
@mohammadtz337 Жыл бұрын
By far this is the best demo of how these thing works . I never heard of it until code po597 came on my 2012 chevy cruze. I clear the code with no drive ability issue but i know that it will come back on after driving at higher speed like 60-80 mph for highway speed. I did the resistance and it was 35 ohms and the spec on it is 15-16 ohms
@zzhughesd2 жыл бұрын
Nice little video thanks !!!! I'm stumped, ice cold inlet and output pipe to Thermostat, car boils up, closed off system. I replaced it twice and then checked again.... My 2x new OEM spec Mahle did not open in hot water pan at 100c but didn't also have 12v power to it now know with MAP based Thermostats. 'learning' ... The circuit must not be working guess as on or off the car the Mahle stays closed. That is both the new Mahle thermo's. I took this 12 reg corsa in for crankcase oil leak and came out unable to stop overheat and had a Water pump, thermo, and header tank. Most puzzling, no head gasket issue, drives as should..... Indeed I have tested 20 kilometre driven with housing thermo pipe wide open, thermo in housing totally removed. Once 2x new Mahle Thermo on car boils up in 2k again as radiator loop closed off, thermo closed. I'm stuck to understand why this MAP thermo won't open on my car and on an OHMS test in the house.... these Thermo are not faulty, the car isn't operating them . Can you think where I have gone wrong, temp coolant sensor on order...... Many thanks
@fetlocks39 ай бұрын
Thank You, I have had two failed ones both failed closed, the second brand new OEM out of the box, that turned out to be broken electrical connections inside the thermostat, awaiting replacement from BMW. Not sure if this is the right move, with the cost of new OEM parts, might be better to buy two cheap after market units, worst mistake I made was throwing away the original one because of age but was working normally, you live and learn.
@AhmedHadiPADI_scuba_instructor2 жыл бұрын
Best explanation!!!! If you have a BMW N55 335i and you drive crazy like me and engine temp gets like 120c, replace its thermostat with the Ford f150 thermostat and ENJOY driving fast and crazy or maybe drifting at all time!!! In middle East we call it “change it from electric to mechanic” 🤜🏻🤛🏻
@manliocicchelli8763 Жыл бұрын
Hi I have Z4E85 2.0i i want change termosta map 105° Which termostat i can to install for lower the temperature? Meccanic termostat?
@DavesDiscoveriesChannel3 жыл бұрын
Thanks Gerard for this great video. I'm trying to diagnose an over heating issue on my N43 engine'd E88 -when the heaters are turned off the engine will overheat quickly and the bottom hose rad remains ice cold, your video demonstrates these thermostats fail close so I'll definitely be replacing that ASAP.
@chankchan27232 жыл бұрын
thanks for your contribution
@mistergreen27 ай бұрын
The benefits to reducing emissions and improving fuel economy are grossly exaggerated. This thermostat does not do anything different than a conventional one during engine warm up where the engine is running rich. On the other end of the spectrum this system merely adds another layer of completely unnecessary CEL events and codes, costing big bucks to the car owner for diagnosis, parts, and repairs.
@MiracleMAX3 жыл бұрын
Emissions, emissions, emissions! The reason for most of our failing components. Unfortunately, the manufacturers don't seem to come up with long term components that are able to cope with the strict requirements of emission control.
@GerardBurkeBurkesGarage3 жыл бұрын
That's the money comment right there, 100% agree Max
@dela49943 жыл бұрын
Well explained Gerard like always.🔧
@GerardBurkeBurkesGarage3 жыл бұрын
Cheers Jason ❤️❤️
@CosminRotaru3 жыл бұрын
Can this ever stuck open? I am trying to figure out why the coolant temp on my F30 316i (N13 engine) takes ages to get to 80C and never past that.
@jonanddy Жыл бұрын
yes they can, it's usually one or the other
@serkancandan066111 ай бұрын
Hi friend, Two positions for the electric thermostat? If 12V to open and if not 12V to cloed. Right?
@erikwilhelm33492 жыл бұрын
Great Video. Thanks🙏
@GerardBurkeBurkesGarage2 жыл бұрын
Cheers Erik
@nikolazmuk8050 Жыл бұрын
how many volts should the connection for the thermostat have when it is cold?
@patkelly79993 жыл бұрын
Well explained Gerard, Thankyou:):)
@GerardBurkeBurkesGarage3 жыл бұрын
Cheers Pat 🍻👍💪
@ichbinbaghdady24183 жыл бұрын
nice work & thanx
@GerardBurkeBurkesGarage3 жыл бұрын
Thanks very much
@actrossful9 ай бұрын
How to make thermostat quickly,any idea?
@manliocicchelli8763 Жыл бұрын
Hi I have a Z4e85 2.0i that mounts a map twrmostat with 105° opening in fuel economy the range is always between 107° and 109° in the norm I would like to lower this range in fuel economy by making it remap from the ecu from a computer can you force it to open with a lower temperature?
@levantsulaia380411 ай бұрын
My car is a 528xi and it has this thermostat here. When driving, the temperature drops to 76-80 degrees and the engine runs cold, is there any way to increase the temperature a little?
@biofall383 жыл бұрын
Mini has the temp sensor on the housings
@shemmo3 жыл бұрын
Engineers at BMW "lets screw and overcomplicate the simple things"
@GerardBurkeBurkesGarage3 жыл бұрын
😂
@fieldsofomagh3 жыл бұрын
Can I convert my Yaris to a BMW. I need to control the coolant temp especially at speeds above 200 km per hour. Now that's just down your regular country boreen never mind the motorway.
@GerardBurkeBurkesGarage3 жыл бұрын
Worth a go Tom 😂
@fintan28303 жыл бұрын
Go for it Tom! There's nothing that a lump hammer, a grinder and a welder can't sort out with a little bit of time and patience!
@fintan28303 жыл бұрын
Whats the point in having a thermostat opening earlier to get better emission figures before the engine has got up to operating temperature? Surly this defeats the purpose of the thermostat? Not having the engine up to operating temperature as soon as possible would cause premature engine wear thus shortening the life of the engine. Where is environmental benefit in wearing out the engine faster?
@GerardBurkeBurkesGarage3 жыл бұрын
Emissions is the biggest issue with vehicles off the assembly line, as the restrictions have gotten tighter the additional problems that have followed have made reliability harder to come by. Not just BMW though, VW, Mercedes, Saab, Chev/Holden.
@dre39512 жыл бұрын
I believe the answer is that the mechanical part (wax element, springs, etc.) of the stat is designed to open hotter than for a "normal" stat. Then the MAP is standing by, ready to open earlier when it is needed. So you might think of it as ... it runs hotter almost all of the time due to the mechanical design, but not too hot in those few times when needed (based on driving conditions, monitored and controlled by the ECU). So overall the engine runs hotter, which is better for emissions, better for fuel economy, better for cabin heating, ... and WORSE for everything else, especially for plastic engine parts.
@TommySebola-jn4gc2 ай бұрын
But from my point of view I don't think an electrical thermostat will close with the water temperature because it's already using a 12v supply to close meaning if the solenoid is damaged it won't open with the water temperature as the way you tried to demonstrate to us or maybe I'm wrong?
@user-kl6jp2iq4b3 жыл бұрын
👍
@GerardBurkeBurkesGarage3 жыл бұрын
🙏🙏
@ANDYW031084 Жыл бұрын
This stupid high temp thermostat is killing the engine