C5 2007 heater

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sam3b
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C5 2007 heater

Post by sam3b »

Just bought a cheap 2007 C5, which is a late MK1 facelift model.
Problem is the (dual zone) heater had the usual problem with the flaps but it now seems that a previous owner has absolutely trashed the whole unit trying to insert new flaps so I need to get a complete replacement heater.
Question is ... is that dual zone heater unit the same as the early MK1 (I've got a 2003) or the same as the later 2008-on MK2 or the same as any particular Peugeot (407, I guess) but which years ???
It's a very low-mileage 1.6HDi and in really good condition apart from that so willing to spend a reasonable amount.

Thanks 🤔

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GiveMeABreak
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Re: C5 2007 heater

Post by GiveMeABreak »

Assuming you're talking about the housing unit, these are completely different units and are not compatible. Even the 407 version of the housing that looks similar to the MK II C5 is different in certain areas - especially at the side with the control mechanisms.

Having had a check on the Bi Zone system for the MK II C5, there are no other vehicles coming up with this part number, ditto for Peugeot.

sam3b
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Re: C5 2007 heater

Post by sam3b »

Thanks, Marc ... I was hopeful but obviously not this time as finding one is proving a nightmare ... breakers don't want to have to take the dash out of the car !

sam3b
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Re: C5 2007 heater

Post by sam3b »

One thing, Marc, do you have the part no for the unit (the box that contains the matrix and flaps) for the 2004-2007 facelift C5, please ??

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GiveMeABreak
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Re: C5 2007 heater

Post by GiveMeABreak »

Hi Sam, I can get you the part numbers, but please note we are charged by PSA for data now, so ask for a £10 Forum donation for live parts data and parts diagrams. This will cover you for up to 2 years though if you need any other parts info.

If interested, see details and links below, and then just pop your VIN up that will be auto masked from public view on post submission.
A response to your question by a Forum Admin will require detailed vehicle information that requires you to have made a current contribution to the Forum.
Donate

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sam3b
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Re: C5 2007 heater

Post by sam3b »

Thanks again, Marc ... Munny has changed hands 💲💲💲
I can't see anywhere to add the VIN though 🤔
VIN VF7**************[VIN obfuscated, can be read by forum staff]

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GiveMeABreak
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Re: C5 2007 heater

Post by GiveMeABreak »

Hi Sam, thanks for the donation - your member status has 'hulked out' and gone green. :mrgreen:
Sam Evap A.PNG
So item (1) which includes the housing (A) and the Refrigeration Pressure Release Valve (2) is as per part numbers below and costs £1020.86 inc. VAT from Citroen as of today.

6450RH: Evaporator Housing
6461J7: Refrigeration Pressure Release Valve

So you can at least search on this to see if you can get a second hand part.

admiral51
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Re: C5 2007 heater

Post by admiral51 »

sam3b an easy way to allow admins to have your Vin so they do not have to ask or search for it is to pop it in your car details in your profile, it will be masked as in mine.
And welcome to the forum, you are in good hands here, not mine but everyone else's :lol:

Colin

sam3b
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Re: C5 2007 heater

Post by sam3b »

Thank you, Marc and Colin 😎

What I hope is a final couple of simple (for you) questions ...
I located a 2nd-hand heater box (complete and with new flaps) from The Netherlands at a very fair price and with 6 months guarantee (they checked the VIN and it matches) ... arrived yesterday.
Passenger side - bulkhead on left.jpg
Driver side - bulkhead on right.jpg
Can you tell me the part numbers for the 4 stepper motors (I'm guessing they're all the same) and also, when installing them, how do I synch the position of the flaps with the setting of the temperature (for the lower mixer motors) and the positioning (for the upper air direction motors) when installing them ???

Million thanks in advance ...

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GiveMeABreak
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Re: C5 2007 heater

Post by GiveMeABreak »

Hi Sam

Nicely done.

As for the Motor Reducers, they are 2 types fitted as you can see below.
Sam X7 Heater.PNG
Item (1) is part: 6447RF
Item (2) is part: 6447RJ

Here's a guide on removing and refitting them including the Air Quality Sensor:

Removing

Reduction motors for distribution and mixing flaps (left side)
Sam Guide A.PNG
Disconnect the connector at " a ".
Remove:
  • The bolts (1)
  • The reduction motor for distribution flaps (2)
Carry out the same operation to remove the reduction motor for mixing flaps ( 3).

Reduction motors for distribution and mixing flaps ( right hand side)
Sam Guide B.PNG
Sam Guide B.PNG (143.46 KiB) Viewed 64 times
Disconnect the connector at " b ".
Remove:
  • The bolts (5)
  • The reduction motor for distribution flaps (4)
Carry out the same operation to remove the reduction motor for mixing flaps (6).
Air Quality Sensor
Sam Guide C.PNG
Sam Guide C.PNG (102.43 KiB) Viewed 64 times
  • Disconnect the connector at " c ".
  • Release the tab at "d".
  • Rotate the air quality sensor ( 7).
  • Remove the air quality sensor ( 7)

Refitting
Sam Guide D.PNG
Sam Guide D.PNG (68.54 KiB) Viewed 64 times
N.B.: Position the locating tab correctly at " e" when refitting the reduction motor for mixing flaps.

sam3b
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Re: C5 2007 heater

Post by sam3b »

That's brilliant as usual, Marc ... very many sincere thanks. Synching the motors was worrying me a bit as I had no reference points to work from (incidentally, you've shown the mixer motor so is it the same for the distribution motor or is that more simple/complex as there appear to be stops to prevent the flaps going to far in either direction ... or is it, like the mixer, having the flat on the spline set centrally with the flaps and electrical switches also centralised ??).

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GiveMeABreak
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Re: C5 2007 heater

Post by GiveMeABreak »

This is the only method so should apply to both Air Mixing and Air Distribution Motors Sam, so they should only go on one way.

sam3b
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Re: C5 2007 heater

Post by sam3b »

Great ... I'll practice before bolting it all together 🤪
Incidentally, the Dutch company is Bart Ebben near Nijmegen and they're Peugeot/Citroën dealers plus being 2nd-hand parts specialists. As usual, everything's in English on their website and they speak it, too. Prices include shipping.

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Re: C5 2007 heater

Post by GiveMeABreak »

Great - thanks for the feedback, I'm sure other members will be encouraged to use them in future as a reliable source.

sam3b
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Re: C5 2007 heater

Post by sam3b »

Final update (I hope).
In the end I didn't feel up to doing it all on my own so got the Citroën specialist "Paul Clifford Motor Services" in Wingham (bit east of Canterbury) to replace it. Excellent, professional job; very, very reasonable price; looks and feels like new. Showed me the old box ... really trashed by someone trying to install new flaps by cutting but holes were far too small and they simply gave up.
Thanks for all your help and advice and I'd really recommend Paul Clifford ... they certainly know Citroëns inside out 🚑