How to: Ford Mondeo & Focus (Duratec HE) thermostat replace 

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I would like to thank you for your help with my car. After watching your vid's I have been able to get a lot of work done that would of cost me a lot of money in a garage.

Craig, thank you! Soon I will replace an EGR and this thermostat. Both videos helped me much to understand that I can do it by myself and avoid overpriced services. The only thing, I just figured out, is that MK3 Mondeo Duratec HE engines have two models of thermostat, one with electric connector (temp sensor or electronic control?) and one without it. The model without it is cheaper and was used in Mondeo manufactured from 2005 to end of production in 2007. Older Mondeo´s thermostat has that electronic connector. I own one of the last (02/2007) so I took a look there and it confirms it. (German model, it is possible that UK models have this otherwise)

Thank you, it helped alot! We managed to remove the hoses before removing the thermostat. Got a bit nervous when the plastic arms on the old thermostat was intact, but it had failed in some other way :)

Just replaced the thermostat on my Mondeo. Same problem with the broken plastic arms. Thanks for your helpful video! Greetings from Germany.

It was soo hard without taking the evacuation gallery off!!! Just changed mine today thanks to you, also put new antifreeze (didn't need to flush cause my thermostat had a tiny crack so I lost 1 liter per day, and I put in only distiled water). It works like a charm! Thanks again man!

Thank you so much Craig, I learn a lot from you, Many thanks

Thx for your video, it just helped me change my thermostat on my '02 Mondeo. I tried to mount the new thermostat with the existing spring clamps but they were too much of a pain in the a... , so I gave up and bought the same kind of clips than you :).

Great vid and I'm gl;ad you posted on talkford because videos like this are a great asset to such forums. Thanks for uploading.

I just did this on a 2008 Focus SE (USA model). On mine, I also needed to remove the transmission dipstick tube in order to get clearance to remove the intake manifold. This was per the Ford maintenance book I bought online for $15 (it's a CD with the service manual, worth every penny). And the manual is right, it wasn't possible to get any clearance until I removed it. There are two bolts. First follow the line down with your hand under the throttle body area and wiring harnesses. There is a bolt securing the tube there. Then, under the car, reach a hand up on top of transmission housing and find where the tube enters it, and the bolt right next to it that secures the tube to top of transmission. Undo that one (by feel alone). Finally, shimmy the tube back and forth while pulling up with some strength to free it from the housing. Oh, and make sure you clean around the area with a rag FIRST to minimize debris entering the transmission from that open hole. To get back in, have a friend push and shimmy from above while you guide into the hole from below the vehicle, again by feel. It's a little frustrating but possible.

Mine was without sensor and there was less space because I had some wires instead. Without flexible wired extension I wouldn't be able to did that. It saved my life. So IT'S A MUST HAVE.

An Awesome Video Craig, I will Be Confidently Taking This On After Watching This, Thanks Craig. Regards Barrie.

If you are going to reuse the old hoses, then also reuse the factory spring style clamps. Reason being is they have embedded into the hose and placing a different clamp there will cause problems. Make sure the old spring clamps are in the exact same position on the hose that they were before you removed the hose. If you are using brand new hoses, then feel free to use either spring style or band style. Also, I recommend spending the extra money and purchasing a Ford or Motorcraft thermostat housing. Don't purchase the cheapy aftermarket 'made in China' part. You are risking a leak or worse. Since this repair is kind of a pain to do, you want the repair to last for years. I know it may cost more, but it's worth it. Use the dealer part here. Great video. Thanks!

Cheers, you have helped many people Craig

Good video :-) Normal operation temp for Duratech HE is 95-105C, mine is running usually at 102-103C. I also suspect my thermostat is broken, run at correct temp, but take a while to get there. Cheers from Norway Richard

Awesome video thanks.. I’ll be changing one tomorrow. 🇳🇿

Moben pliers are the correct tool for these spring clips. We use these clips on the assembly line at JCB Power Systems and they come with a one hit plastic clip on them to hold them in the open position whilst they're fitted. You could probably open them and slip a small washer over the ears to do the same thing.

Very helpful, thank you for such a clearly presented video.

Thanks for the great video! The needle of the thermometer of my 2002 Monty has not been moving a lot since September. I thought it's not very critical and only recently learned (from my brother) that it actually is quite critical. Also driving at -20 C (in Finland) was not very pleasant because the heater was hardly blowing any warm air. Now I need to find a new thermostat and try replacing. Hopefully the weather is getting a bit warmer before that. I'm having my first car (and I'm already 57) and there seem to be a lot of things to be learned. I like your soft/calm presenting style and clear book English(suits for non natives).

Thank you for this video, very helpfull

hi Craig, great videos. I need to do a cylinder head repair on my 2.0L petrol 2005 Mondeo. I was wondering if you have or may know about a vid that show the process. I am more looking at the disassembeling/assembeling part of the work. I will probebly give the engine head to the shop for professional work. Please advice. Thanks.

great video craig !!!

Great info, thanks!

You should also see some increased fuel economy with an engine running at the correct temps.

thank you after taking out headlight was easy ,

Hello, how do you change the crankshaft oil seal after the oil is replaced by yourself?

Hello, Thank you for the video it's a great help. Do you know what year it will be for the for sensor or no sensor, I have a 2006 2.0 Duratec HE CD4E. Thanks, Alex

Spring type clamps are better. First thing is they are not sharp and don't damage the hose as the ones you screw on. Second, you can get pliers that are made just for taking off these spring clamps, and they work really good, since the grab the clamp properly. Also when you putting the spring clamps back you want to manoeuvre them in the same exact place they were in originally. That will make any kind of leaks much less likely.

HI Craig, thank you for these videos. I too have an HE14 duratec engined car. Mine is a prototype which has always struggled with dissipating heat. I think I have discovered a design fault though. The large hose coming from the thermostat goes to my radiator's upper connection (top hose), however, I have been told that the hose concerned is, in-fact, the water inlet to the engine not the outlet. Can you confirm my belief please?

Great thanks and be Blessed.

Nice job

Great vid! Can I suggest small pointy nose vice grips for the clips and a wee bit of washing up liquid on the inside of the hoses for those of us without a heat gun.

Tell me how to change the oil level in the engine on Ford Mondeo 3 2.0 gasoline Duratec HE CJBB 2003 ?

Update and redux video - a mini-review of the Dorman version; how to reuse old coolant; and musings on both the merits of spring hose clamps (hint: they're better), and using the right tools (vise grips) for the job: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-HPuL2FOiZ58.html

I have a ford mondeo Ghia 2002 petrol , my car heating up fast after a drive of 20 to 30 km and coolant leaking from the Bottom, can any suggestion please to fix the issues.

Hi Craig, Thank you ever so much for your great video. Quick question I have a dilemma, my gauge indicator is in the middle but the diagnostic computer on the dashboard reads me the temperature of 59 C, so which one to believe?

I am a follower of Iraq would like to ask a question of my car up the heat and you cancel Wolf Is of the heat affects the engine

Criag help me, because my fan does not turn on even when it reaches 105 degrees, I already changed the resistance of the fan, ECT sensor and relays, but the fan still does not enter, they only enter when I turn on the AC, please help me

Hi! I have a question about the electrical connector on the thermostat housing. Is this the thermo switch for the cooling fan?

Thanks for good video. What would be the right clamp sizes?

i have a eml on code p1432 heater control circuit car not over heating if i replace part like in video will it solve my problem thanks

good video. I have 2 questions. 1)is this the same for a Ford focus 2.0 tdci mk 2 55 plate. 2) looks fiddly but what sort of skill level do you need for this job thanks

very good video, does this also include the 2001 TDDI diesel for a mondeo?

How long is the extension you used on your ratchet? How critical is the length in accessing the bolts? I have a 2006 Ford Focus (2.0 engine), yours is the only video I've seen that accesses by removing the headlight. I assume that I can do the same on my Ford ...? Thanks, Craig.

Thanks for the work you've done! 6:48 What is this electrical gray connector with a black chip? What is he responsible for?

that is if you put the thermostat on the Ford Mondeo 4. He had no chips. it will greatly affect the car? I have 3 Ford Mondeo automatic transmission 2.0 gasoline. Sorry for my English. Greetings from Barnaul)

Good video. Have you thought about replacing an oil cooler thermostat, if your car has one fitted. I know that failure of one of these can cause over-cooling problems. What do you think?

tenho um mondeo 2.5 v6 170 cv a venda

hey i have a mondeo and i get a p1432 bad thermostat sensor when i start the car it struggles to start and when it works very rich and idle 1200-1300. is it because of the sensor thermostat or is it something else? a car going fine without a problem is just the first start problem. please help me :(

So is it possible to change the thermostat without changing the coolant? How much coolant will flow off the system?

any idea size these bolts craig ? to buy new ones

So how much coolant will flow out if I change the thermostat? Is it possible to do the job without removing the bottom cover?

I have the same problem on my mondeo. Due to covid-19 i can only bring my car in for maintenance in about a week or so is it safe to still be driving like this?

Is it really necessary to remove the inlet manifold? I need to do this and want a pointer. Good video BTW. 👍

Hello, in winter the temp of my engine is not up 90 C, the temp is also 70-80 C. That mean that thermostat is open? Summer my engine temp up to 102 C and fun is switch on normal. Do I need to replace the thermostat?

I would always choose a Jubliee Clip over the factory clamp any day xD

I have replaced the thermostat. It's the 98degrees version. 1.8 92kw. Seems to be ok, but after driving a while the fan will start working and will not stop even when the radiator has cooled down. What's wrong?

¿The electrical connection is the temperature sensor? I mean the one that go to the ECU/PCM and then to the dashboard. Do you know how many temperature sensor this engine has?

My car (Volvo C30 with this Duratec engine) heats up to 76C max (obd reader), I haven't seen any warmer. On the autobahn driving high speeds, the temperature goes down to like 60C something (it's about 5C outside now). The last couple of weeks the car heats up slowly and fuel economy has worsened. The temperature dial is in the middle when temp is 74C. (Probably always between 74and102 I guess). Seems to be the thermostat I guess?

Great vid man. professionally made. How can you tell if the thermostat is faulty?meaning excluding fan and relay faults. Is it better to use the red liquid or the green? mine is mondeo2005 2.0L petrol, middle east HOT summer.

My duratec 1.8L petrol only gets up to around 70-75C degrees so I guess I need to replace my thermostat. do you know why there is an electrical connection on the thermostat? I found some replacement thermostats for my car that don't have them.

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Hi..i take it this thermostat wont fit 2.2 tdci mondeo..havn a lot of difficulty finding one tht does..

super.

Love the Mk3 but not a massive fan of this engine. Thermostat breaks exactly like yours. And it is not cheap to replace. EGR gets bunged up and throws error codes. Again not cheap. Swirl flaps can munch the engine. One in the family had piston ring failure at about 80K miles. Shame as it was a nice car to drive.

my base model 08 focus is set up this way but much more accessible. i attempted this from the top without removing anything. the new thermostat housing was bigger and conflicted with my motor shape. i noticed a gap in between the new thermo and the motor. since i had a view from the top i knew what to shave. i shaved it with a grinder. (this was an auto zone part. BEWARE.) i screamed and cussed throughout the removal. because my pliers kept slipping off those fuckin hose clamps. but after spending a few days with them i realized they have a tab to hold it open. (very hard to manipulate from the top side). i was blood sweat and tears to the finish but it was my first one, so now i'm about to fire it up. if there's a leak, i'm gonna just ride a bicycle. i'm done with cars

Very nice video. However the connector on the thermostat housing is not live while the ignition is off. So you dont have to the battery terminal off. Some people might not have their radio code available.

Ok my

Mr if ya cud moviit your head from filmcamera shud not change ternostats in ur head

something like: "yo, maybe there was a better way of draining it"

Just be careful before you buy thermostat, mine Mondeo 2005 is without sensor.

How do you stop over revving when taking off from lights or intersections when in gear. But not in gauge just now and again. Is this Clutch or motor problem. Email me at Ac Pro Jumpstart in Christchurch New Zealand. acprojumpstart@gmail.com It was left hand drive and has been changed for right hand for our country just a great car and though just brought it I am not familiar with this motor. Ford mondeo 2003 petrol turbo DuraTec HE

What the hell, too many shits to remove just to access a $15 part ! ! ! Stupid Ford design.....