04 golf tdi sensor?

Thread starter Adrian rushforth
Start date Jun 4, 2019

A

Adrian rushforth

Member

#1

Can anyone tell me what this is on the ccv breather tube, is it a sensor?

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C

CopaMundial

Veteran Member

#2

CCV Heater

https://www.idparts.com/ccv-heater-a4-p-7472.html

A

Adrian rushforth

Member

#3

Thanks what is the purpose of this heater?

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C

CopaMundial

Veteran Member

#4

Water vapor condenses out of the crankcase fumes. The heater prevents that from freezing and blocking the small breather hose.

A

Adrian rushforth

Member

#5

Ok that makes sense thanks for response

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