S-Type / S type R Supercharged V8 ( X200 ) 1999 - 2008 2001 - 2009
Sponsored by:
Sponsored by:

S-Type Diesel Dual Climate Heater Control Valve - Tips

 
  #1  
Old 07-09-2013, 07:46 AM
Junior Member
Thread Starter
Join Date: Jun 2013
Location: UK
Posts: 26
Received 3 Likes on 1 Post
Default S-Type Diesel Dual Climate Heater Control Valve - Tips

Hello All.

I'm not a brand new member but don't seen to be able to post in other areas, hopefully an administrator may be able to move this post to the appropriate location (& advise me why I cannot post elsewhere).

Just wanted to share a little recent experience regarding heater control valves for the climate control system on S-types and other similar sized jags - but specifically the S-Type 2.7D.

1. The valve on the 2.7D is located under the front bumper, to the left of the radiator if you are stood looking at the front of the car (Drivers side for all RHD cars).

2. You need to remove the black plastic cover that attaches directly to the bumper in order to access it. You don't need to completely remove it - if you like you can just peel it back half way (be careful not to damage it however!) then the valve is easily accessible.

3. And this is my top tip - FULLY CHECK THE CONNECTOR PLUG BEFORE DOING ANY WORK. My shortfall was having a quick look see, deciding that all was in order then buying a new valve. It was only when I came to change the valve out did I realise that one of the wires had actually snapped off at the connector. Fail!

4. Changing the valve isn't overly difficult, you will need pipe grips to remove the pipe clamps and will obviously loose some coolant, but aside from that you need to remove the 5 off pipes (best to mark them up 1st so you put them back in the same order) then take out the one bolt holding the bracket into the chassis. Oh, & don't forget to remove the wiring plug! Once you have refitted the valve you will need to top up the coolant system and bleed it. I added approx 7 litres to my system after fitting so you clearly won't loose all of it.

5. The valve is a 5 pipe valve & I am reliably informed that all the 5 pipe valves are the same (both petrol and diesel) - only thing that is different is the mounting bracket, but you can easily swap this out for your existing one. If you are in the UK, there are various ebay offers for new valves at approx 95 - dealer cost is 260!

6. If like me, you have a dodgy connector & need to replace it, do not stress. I was concerned that I would have to find one off another S-Type and that it may come with the same corrosion issues as my car. However, the connector is exactly the same as that fitted to a Ford Focus master cylinder! There are 100s of these in every scrap yard and as the master cylinder is rarely removed from the car when the engine is removed, the supply far outstrips the demand. Wire colours are slightly different but if you are bright enough to consider changing out this valve I'd expect that you are capable of getting 3 wires in the correct order.

I ended up fitting the new valve anyway as I had already purchased it and the supplier had made it clear he wasn't keen on returns! So if anyone wants to purchase a very cheap 2nd hand valve & is located in the UK, please let me know!!

The aircon is now ice cold & all is working as it should so the wife is happy again.

Hope this post will help someone with similar climate control issues.

Cheers,

Andy
 
The following 3 users liked this post by AndyL:
ian.fox (10-26-2018), ink. (09-22-2018), SteveSheldon (09-28-2018)
  #2  
Old 07-09-2013, 09:18 AM
GGG's Avatar
GGG
GGG is offline
Join Date: Dec 2011
Location: Durham, UK
Posts: 108,818
Received 10,225 Likes on 8,410 Posts
Default

Andy,

Good post - you'll certainly need the AirCon today!

As requested, I've moved your post from New Member Area - Intro a MUST section to S-Type section.

There shouldn't be any restriction on you posting to any other section. Open up the S-Type section and click on the New Thread button (arrowed in red) to start a new thread:

S-Type Diesel Dual Climate Heater Control Valve - Tips-andy.jpg

Let me know if you still have problems posting here.

Graham
 
  #3  
Old 07-09-2013, 09:23 AM
Junior Member
Thread Starter
Join Date: Jun 2013
Location: UK
Posts: 26
Received 3 Likes on 1 Post
Default

Thanks Graham.

I think it was operator error as opposed to a restriction!

I know where to go now so will be sure to post in the correct section from here on in.

Cheers,

Andy
 
  #4  
Old 04-20-2015, 06:48 AM
Junior Member
Join Date: Apr 2015
Location: ireland
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Thumbs up many thanks Andy L

thanks so much for taking the time thats exactly the info i needed
 
  #5  
Old 04-20-2015, 01:11 PM
Join Date: Feb 2015
Location: fishtoft
Posts: 65
Received 11 Likes on 8 Posts
Default

Great write up and very useful info regarding a replacement connector. I just wish the valve on the 4.2 v8 was as easy to access!! Welcome to the forum.
 
  #6  
Old 12-16-2015, 01:46 PM
Junior Member
Join Date: Apr 2015
Location: ireland
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default

on my S type I found that there was no PWM control signal arriving at the valve plug connector ( if I remember correctly its 12v at the middle terminal with the ignition on) and the control unit in the facia of the heater provides a pulse width modulated ground connection to both valves left and right. the grounded time is controlled independently for left and right to give the requested heat to either side. I did a work round to get them both working using a relay Fused 10A on its battery supply and 1Amp on its ground to the heater ECU and using the remaining "good" ground signal. but I'm not going to give anymore detail, because if you don't know what you're doing you could set things alight so don't try it anyone
 
  #7  
Old 09-28-2018, 09:00 AM
Join Date: Apr 2012
Location: Crawley, UK
Posts: 4,040
Received 504 Likes on 407 Posts
Default

Yes I am updating an old thread from 5 years ago :-) Only found it by chance and via a google search if you would believe it.. :-)

I am going to try getting under my S-Type this Sunday to take a look at my valve which has been more not working, than working, ever since the first of two major coolant leaks - I will see if the connector is corroded, and if not try to get a replacement valve budgeted in after her MOT which is in a couple of weeks.

Many thanks for the info on where it is, and how to change it, and the hint on corrosion (which I am hoping will be more the issue than the valve itself) and this just shows how long info, any info any of us have can be relevant way into the future and I am grateful for that :-)
 
  #8  
Old 09-30-2018, 01:30 PM
Join Date: Apr 2012
Location: Crawley, UK
Posts: 4,040
Received 504 Likes on 407 Posts
Default

I took a look today and the nracket on mine is heavily corroded and where the metal caps are bolted to the plastic on it there is a lot of dried antifreeze. Couldnt get to the electrical connector well enough to remove and reseat it but looking at the dried antifreeze around the cap to plastic seams and corrosion I have decided to order a replacement 5 pipe one.. 33 so not too bad but I only have jacks and axle stands so will see if my MOT centre can fit it for me when she is in for her MOT on Wednesday as it is quite easy for them to get to it with lifts. Will update you with the outcome
 
  #9  
Old 10-05-2018, 09:54 AM
Join Date: Apr 2012
Location: Crawley, UK
Posts: 4,040
Received 504 Likes on 407 Posts
Default

OK MOT completed, one tyre replaced and my replacement dual circuit climate valve installed :-) It took the mechanic two hours to get the old one out due to the corrosion on the mounting bracket, but out it is, and the new one in and instantly getting hot air through, and the climate control now able to not only cool but warm the cabin. I have spent hours trying to clear what I thought was an airlock when it was in truth the DCCV :-) Yet another thing to add to my Jaguar knowledge I guess although hopefully I won't see this issue again :-)
 

Last edited by SteveSheldon; 10-05-2018 at 10:19 AM.
The following users liked this post:
Norri (10-05-2018)
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bamforp
XK8 / XKR ( X100 )
6
02-21-2019 01:40 PM
Jandreu
XK8 / XKR ( X100 )
9
12-08-2016 02:42 AM
ccfulton
XK8 / XKR ( X100 )
4
09-20-2015 05:15 PM
02jagstype
S-Type / S type R Supercharged V8 ( X200 )
19
09-07-2015 07:32 PM
tberg
XK / XKR ( X150 )
15
09-07-2015 07:32 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Quick Reply: S-Type Diesel Dual Climate Heater Control Valve - Tips


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: