Thermostat - Audi Forums
B6 Forum 2002-2005 Audi A4 & Audi A4 Cabriolet / 2004 Audi S4. (Audi A4 Forum, Audi S4 Forum, Audi RS4 Forum)

User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 11-27-2012, 09:53 AM Thread Starter
Newbie
 
Join Date: Nov 2008
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Smile Thermostat

I've been having an issue where the temperature on the dash on my Audi A4 tdi used to show 90 degrees Celcius when the car was warm, but since having a new clutch and DMF fitted the temperature goes to around 85 degrees, but doesn't increase, sometimes it drops to around 70 - 80 whilst driving on the motorway.

I've been to an Audi specialist to check it, and they couldn't see any problems on diagnostics, so don't think its the temperature sensor, they think it may be the thermostat. They quoted £113 to replace it, he said it would take 1 hour as he has to remove the alternator to reach the thermostat.

I phoned the Audi main dealers for a quote, and they said the part is £20.90, £2 for the housing, and it's a 3 hour job, with £119 per hour labour! Total cost is £427.03.

Is this job easy enough to do by a novice by purchasing the part and housing?
ssb1973 is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 11-29-2012, 06:55 AM
Senior
 
mullardel34's Avatar
 
Join Date: Nov 2008
Location: Midwest US
Posts: 368
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
You haven't stated whether your A4 has the 1.8L turbo-engine or the 3.0L V6; the procedure is quite different...

Assuming that you have the 1.8L turbo-engine, here's a step-by-step write-up on thermostat replacement:

DIY: B6 A4 1.8T - Thermostat Replacement

As you can see, it's a fairly lengthy procedure (you have to remove the serpentine belt and the alternator, among other components), so be careful if you decide to attempt this repair as a DIY project. You're likely to lose a signifciant portion of the coolant during the repair procedure, so be certain to purchase the Audi-specific G12 coolant so that you can make-up any coolant loss.

Good luck!

---Mullard EL34
* 2003 A4 3.0L Quattro (6-speed manual)
* sport package
* 18"x8" Moda MD5
* Continental ExtremeContact DWS (235/40ZR18)
mullardel34 is offline  
post #3 of 4 (permalink) Old 11-29-2012, 07:14 AM Thread Starter
Newbie
 
Join Date: Nov 2008
Posts: 5
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
thanks

Hi Mullardel,

Thanks for the response, the Audi's a 1.9 tdi. I've looked through the procedure, and I think I'll leave it to the experts.

Audi main dealer quoted £427
Independent Audi specialist quoted £113
non Audi Generic garage quote £40 labour + £22 parts.

Think I'll go for the generic garage, and buy genuine Audi thermostat and housing.

Thanks for the response.

Last edited by ssb1973; 11-29-2012 at 07:15 AM. Reason: typo
ssb1973 is offline  
post #4 of 4 (permalink) Old 10-31-2014, 09:20 PM
Newbie
 
Join Date: Sep 2014
Posts: 16
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Thanks for great tips
Frankv27 is offline  
Sponsored Links
Advertisement
 
Reply

  Audi Forums > Audi Models > Audi A4, RS4 and S4 Forum > B6 Forum

Quick Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome