How to Replace the Coolant Housing and Temp Sensor on a 2003 Volkswagen Jetta 2.0 L Engine

Brian Eslick from How to Automotive www.howtoautomo... takes you step-by-step through the process of replacing the coolant housing and temp sensor on a 2003 Volkswagen Jetta with 2.0 L engine. #AutomotiveRepair
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Owing to factors beyond the control of How to Automotive/Brian Eslick, it cannot guarantee against unauthorized modification of this information, or improper use of this information. How to Automotive/Brian Eslick assumes no liability for property damage or injury incurred as a result of any information contained in this video. How to Automotive/Brian Eslick recommends safe practice when working with power tools, automotive lifts, lifting tools, jacks and jack stands, electrical equipment, blunt instruments, chemical lubricants, or any other tools or equipment seen or implied in this video. Because of factors beyond the control of How to Automotive/Brian Eslick, no information contained in this video shall express or imply warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or information contained in this video is the sole responsibility of the user and not How to Automotive/Brain Eslick. #howtoautomotive

[@megansantana]

Great video! As female just learning to do things on my own, you made this job super easy! Fantastic editing and superb visual aid!

[@HowtoAutomotive]

Alex Santana the company thank you. Super cool you’re taking initiative to learn about your car. I have three daughters that I’m teaching to do their own maintenance.

[@eddytsui4204]

Subscribed. I've watch around 10 videos on this subject, you are the only one identifying what the surrounding parts are. Eg I finally found out what that infernal intrusive metal pipe is and where it goes. Your videos are still helping people years after you've posted it.

[@ijustliketochill8896]

Thank you! Great job, looking forward to this project this weekend!

[@7906jen]

great video, i thought i broke me 03 golf permanently and then i saw your video and had restored faith thank you again

[@MrToddling]

Thanks for the expanded view / explanation on that friggin tab on the sensor connector.

[@jamespage929]

MrToddling mine won’t fit in the hole and clip in

[@_gracieerigney]

I know this video is older but could you answer a quick question? My husband hit a rabbit on the way home with his Jetta and we haven’t been able to figure out what is wrong with it could this sensor keep the car from starting because it turns over but doesn’t start. Just curious before I take the time to do it all

[@michaelfulmer5005]

This help so much. Thank you.

[@wadecarefully]

Anyone have trouble getting those hoses off? maybe my clips are bad but they're stuck as all hell

[@do0rkn0b]

awesome video very thorough. guess this is a common problem.

[@HowtoAutomotive]

It is a common problem. Thank you for watching!

[@arnolds4724]

very good video with great details as well much appreciated going to be changing mine out in the morning its starting to leak

[@gamezthangz3550]

Do I need to put sealant on the housing

[@artgarcia900]

That aluminum hose doesn't budge for anything. Would there be another way of getting ur socket in there?

[@jameshanson16]

A got a question for you I both but I can't remove the metal hose that's just above but everything is rusty and it's a pain in the a**

[@user-uq1ex1cg3y]

I have a 2004 VW Beetle with a 2.0 l engine. The engine is hard to start and when it starts it idles rough at first then it revs up to a really high RPM on it's own. The radiator fans don't work and the AC compressor doesn't work. This all started suddenly. It seemed to be working OK the last time I drove it. Could all these symptoms be caused by a bad coolant temperature sensor?

[@alfredogonzalez2237]

At what temp should the radiator fan kick on?? Awsome video couldnt done it without your help thanks.

[@HowtoAutomotive]

If I remember right it’s around 210° or slightly over halfway on the gauge. It can take for ever to get it up to temp.

[@alfredogonzalez2237]

@@HowtoAutomotive thank you!

[@HowtoAutomotive]

alfredo gonzalez thank you for watching!

[@geolocx]

really good stuff, don't know much about cars and the coolant system but def learning alot from here

[@HowtoAutomotive]

Geovanni Zavala Glad to hear your learning 👍🏻 thank you for watching!!

[@Infernalcx]

do i have to replace the whole housing of the sensor like you did in the video or could a simple sensor replacement work?

[@nateisaak1508]

Check and see if there are any cracks in the housing, and check where the rubber ring for the housing is to see if any coolant is leaking from there. Best way to do this is wipe the housing off then start the car and once the pressure builds check for leaks by the housing. If there aren’t any and it looks good, changing just the sensor should be fine.

[@themachine8009]

Does that car has an interference engine?

[@HowtoAutomotive]

Yes it is.

[@drulessman2892]

So my jetta after driving up to temp works fine shift well then it just revs in gear and feels like its barely grabbing gear.. cool it off works fine .. for another twenty mins.. i replaced valve body got 1200 miles out of it and same issue ... any recomendations

[@HowtoAutomotive]

Dru Lessman I would start by pulling codes from the TCM and ECM. Sounds like one of the solenoid in the transmission that controls the shifting has stop working when it gets hot

[@abellopez4304]

Good job. Do you have any idea why my 2004 jetta After you dive for 15 minutes. And turn it off if you drive it again like 10 minutes the epc light comes the car don't accelerate

[@HowtoAutomotive]

Abel Lopez Sounds like a problem with the throttlebody. I would start by pulling code and see where that takes you. You could also try to clear adaptations.

[@Royce1982]

Question.. Those hoses you disconnected are they supposed to be really hot when car is running?

[@Ncoconstruction]

The hoses hold coolant and the coolant can reach temps of 200 degrees Fahrenheit so yeah

[@philgibbs4045]

Just what I need.... Many thanks.

[@HowtoAutomotive]

Thank you for watching!

[@sinceremilkto144shalazayas5]

hey great vid man..question, if the sensor is bad does that make your heater in the car to stop working?

[@HowtoAutomotive]

Lon Don if the coolant is leaking and gets Low enough it will stop working. Start by fixing the leaks and recheck. Hope this helps thank you for watching.

[@sinceremilkto144shalazayas5]

+How to Automotive thanks a lot for the tips... I'll keep you posted if you don't mind

[@sinceremilkto144shalazayas5]

+How to Automotive thanks a lot for the tips... I'll keep you posted if you don't mind

[@HowtoAutomotive]

Lon Don that would be cool 👍🏻

[@alexrobles3141]

Hello. Need some help here I have the same car as this and it is giving me code p0113 air temperature sensor, but I don’t know where it is locate it. Can u help me please.

[@HowtoAutomotive]

Sb-erevo R the air temp sensor is built into the mass airflow sensor.

[@alexrobles3141]

How to Automotive so the mas air flow sensor is the intake air temperature sensor?

[@Dbest1989]

Great video

[@HowtoAutomotive]

Thank You!

[@coltonrooster]

And a thankyou...

[@jdb87]

Thanks for this video!

[@HowtoAutomotive]

Jeffrey de Boer thank you for watching!

[@sc-dx9bc]

will a bad temper sensor cause really bad gas mileage?

[@HowtoAutomotive]

s c yes it can. If it thinks is running cold it will make the car run richer. I would check for vacuum leaks on this car is very common.

[@sc-dx9bc]

How to Automotive thanks!

[@HowtoAutomotive]

s c thank you for watching!

[@sc-dx9bc]

How to Automotive so on a 2003 2.0 I should look for vacuum leaks? not only is my check engine light on giving a read of something with the coolant. it started to hesitate the other day and the engine light started flashing?

[@HowtoAutomotive]

s c that means the car is miss firing and you should not drive it. This could be anything from spark plugs to the mission coils to severe vacuum leaks.

[@blackdogleg]

why is that coolant not pink?

[@HowtoAutomotive]

blackdogleg this car had been leaking for a long time and the customer was filling it up possibly mixed it.

[@lokiman666]

Your using the wrong coolant you need pink

[@HowtoAutomotive]

Loki Man that exactly what were used in this vehicle. I even say it and mention it in the video. The coolant that came out of it was 90% water.

[@hm3426]

I agree with you, Loki. Is the G12 or G13 pink coolant. I hear that the green one does a lot of damage in the long run. My friend has a Golf which I did the water pump, thermostat, radiator fan and temp cooling sensor and all for free. Why? The man is on disability and has financial trouble. He had the green stuff in it. I told him is the pink one that these cars use .

[@hm3426]

Ok.

[@juanfranciscorodriguezquir1907]

jetta 2.5

[@HowtoAutomotive]

Juan f Rodriguez quiroa what about the 2.5?

[@darienms38]

How to Automotive - Any idea where the coolant temp sensor is located on a 2012 Jetta SEL 2.5? Thanks.

[@stgeorge5862]

What a fucking mess