User Tag List

Thread: Which thermostat??

Results 1 to 2 of 2
  1. Question Which thermostat?? 
    Join Date
    Aug 2019
    Post Thanks / Like
    0 Post(s)
    0 Thread(s)
    0 Post(s)
    Hi all,

    Currently in the middle of trying to resolve a coolant temp related issue and i'm now fairly convinced its the thermostat based on similar issues and resolutions of others. (I've already replaced both sensors)

    My car:
    Audi A5 2014 (on 63 plate) 2.0 petrol TFSi quattro 165kw engine code CNCD

    The issue i'm having is finding out which thermostat to replace (and location). Searching for thermostat's based on my cars spec always seems to return one of 3 results

    1) A normal looking thermostat operational at 95deg
    2) A slender looking thermostat operational at 115deg
    3) The entire water pump housing inc slender thermostat

    So it seems the car clearly has 2 stats. One looks like what you'd expect to find near the radiator and the other seems to be part of the water pump assembly (maybe it just links to the interior heating)?
    Had a quote today from a local garage to replace thermostat and they're asking for nearly 700 inc parts and labour. they say that includes replacing the water pump. their quote breakdown is:
    Thermostat housing 216
    Waterpump 73.43
    Antifreeze 28
    Labour 225
    I don't doubt that this is a good price however i don't have the money due to other expenses and wouldn't have this sort of money free until after xmas!

    I've read its a 2 hour job but finding conflicting info on how to do it. I believe it's located behind the alternator so that needs taking off but i'm confused by the two types and don't know which one to order ahead of pulling the alternator off and draining the coolant.

    Any ideas anyone?
    0 0 0

  2. Re: Which thermostat?? 
    Join Date
    Dec 2007
    Post Thanks / Like
    0 Post(s)
    0 Thread(s)
    0 Post(s)
    Hi Damaudi
    I have exactly the same engine /vehicle and had the same issues with the thermostat last year.The waterpump/thermostat housing is mounted underneath the inlet manifold towards the back of the engine and is driven by a small toothed belt.
    The issue with these is that they are a electrically controlled valve basically,as opposed to a conventional wax thermostat.
    Mine had sheared the gear off of the motor so was stuck fully opened and consequently threw a engine fault light.
    I had mine replaced with the latest revision and all was good in the world again,it cost me just shy of 500 as I was lucky to get mates rates.Audi book it as a 4 hour job as they say the inlet manifold has to come off to do the job,but it can be done without.
    Hope this helps
    Cheers Paul
    0 0 0

Similar Threads

  1. Please Help Another Thermostat ?
    By Dazzler01 in forum Audi A4 - B6 Forum - 2002 - 2005
    Replies: 0
    Last Post: 30-03-2012, 03:02 PM
  2. 2.5 tdi thermostat
    By tractorboy985 in forum Audi A4 - B5 Forum - 1995 - 2002
    Replies: 1
    Last Post: 10-01-2010, 07:21 PM
  3. Thermostat
    By animal in forum Polo - Derby - Lupo - Fox
    Replies: 2
    Last Post: 08-01-2010, 02:04 PM
  4. where is the thermostat..................
    By Team Davie in forum Polo - Derby - Lupo - Fox
    Replies: 1
    Last Post: 10-06-2009, 12:39 AM
  5. thermostat
    By ginge_83 in forum Polo - Derby - Lupo - Fox
    Replies: 3
    Last Post: 22-06-2008, 07:59 PM
Tags for this Thread

View Tag Cloud

Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts


Disclaimer: VW Audi Forum is an "independant enthusiast website", administered in line with guidelines supplied by VAG in the UK, and is in no way related to any of the Worldwide Volkswagen,Audi,Seat,Skoda,Bentley,Bugatti,Porsche or Lamborghini group of Companies. For official up to date information on any of there vehicles, please visit the official websites. Any comments made throughout this website, are the views of the respective poster, and in no way represent the views of the VW Audi Forum Administration, or the worldwide Volkswagen & Audi Group of companies.

VW Audi Forum do not vet and are not responsible for any information which is posted in this forum. All content is viewed and used by you at your own risk and we do not warrant the accuracy or reliability of any of the information.

Copyright: Certain "words", "phrases" and "Images" used on this website by the Administration are "Copyright" of Volkswagen GB, Volkswagen AG (Germany), Audi GB, Audi AG (Germany), Volkswagen Motorsport GB, Volkswagen Motorsport AG (Germany), Audi Motorsport AG (Germany), Volkswagen Racing GB, Bentley, Bugatti, Porsche and Lamborghini. No image can be replicated by anyone WITHOUT the relevant Companies written permission.

All trademarks and copyrights remain property of their respective owners.

No part of the VW Audi Forum website or forum may be reproduced without written permission from the site administration


This website and forum are best viewed at a minimum resolution of 1024 by 768.


- VW AUDI Forum - The #1 Volkswagen (VW) Group Forum - Volkswagen (VW) - Audi - Seat - Skoda - Bentley - Bugatti - Lamborghini - Porsche - VW Audi Forum -

- - -