Vw Passat 1.8T overheat diagnosis 

Thanks!

Thanks!

thanks for watching.

Thanks.

Thanks

overheating is leak, thermostat, waterpump, head gasket or clogged radiator. Its difficult to tell the difference between a thermostat that doesn't open, a radiator that is clogged., or a waterpump that isn't pumping. I cant be much help without checking the car. Can you drive it here from Mexico without it overheating? :)

@@CoolAirVw I think is not possible to drive where you are 😄 Last thing to do is to put a new radiator, probably needs the 100% of water flow to cool and I will pray. If it doesnt work, I will review the head gasket. Thank you for your response. Have a great day. Greetings from Mexico.

@@CoolAirVw Hello my friend. I discovered the issue on my passat. It was the new thermostat. It opened but not enough to allow the flow of coolant while driving. I buyed and installed the original equipment thermostat (vw, audi, seat) and the overheating was eliminated. Clearly original equipment are expensive but so much better quality. I hope this experience helps to another DIY readers. Thank you and have a great day. 👍

@@ulises5319 Excellent!

Kansas city area of Missouri

My VW.PASSAT 1.8T.is running extra hot but I discovered my clutch fan was not blowing hard enough. So B4 that my thermostat housing was cracked an I repaired that but then it started running super hot an istop driving it but could that cause the water pump to leak or go out...so my mechanic looked at it an noticed the fan clutch blowing weak.so should I still get a water pump an timing belt.? Or see how the fan clutch work but I notice s leak toward the front of the car towards the right .please reply .Watsgud132@gmail.com

certainly seems that way. You always have to worry about the head gasket though.

you can certainly try.

It seemed to work taking it for a drive now to if it worked

Possible head Gasquet failure

I have a 01 doing the same thing. Did you ever resolve the problem?

waterpump could be busted or the small hose on the reservoir could be clogged.

The radiator hose gets hot but it takes a min for the thermostat hose to heat and wen it do it stop flowing through the expansion tank and the radiator hose fells like it’s about to bust

@@jarviswashington2149 Please use punctuation so there is no miscommunication. I want to give helpful advice but if I cant understand what your saying its pointless. I'm not sure you can rule out bad head gasket because I don't understand what your saying. But, Its difficult to tell the difference between a waterpump impeller broken, a thermostat that isn't opening, a radiator that wont flow, and the small expansion tank hose clogged. Pull the thermostat housing and inspect the waterpump impeller. If impeller is broken then that is your problem. If not then reassemble leaving thermostat out. If it no longer overheats with thermostat removed, then that is your problem. Check out the small vent hose to the reservoir, if it is flowing well then the problem must be the radiator clogged. Hope this helps.

Lol I’m sorry if you couldn’t understand but I fixed it

@@jarviswashington2149 What was it?

Yes.

How much is a diagnosis for an overheating problem?

It also has good heat now and a new thermostat

You didn't mention your problem in this post.

I would assume most mechanics get consent. I phone call is not that hard.

Yes, and They still come to me today.

Hindsight is 20/20.