I wouldn't get a replacement seat. Colour match / fade for one. You'll also be getting two used heat/cool units and they only last a finite period to better to just replace the unit(s).

Getting a secondhand seat and taking the units out might be a way to go. But I personally would only look at doing that from a passenger seat. Passenger typically seats get a lot less use.

Yes they communicate together in series as I understand.

But a fault with heating function in either unit means, despite error codes, you do need to replace the unit.

. Cheers, Greg
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2011 Vogue SE 4.4 with lots of toys in Stornaway

Quick question: is that B1232-7A mechanical failure code for the back or is it not specific to back or bottom?

More info... (I understand this is getting annoying, so I really appreciate the feedback!)

I sit in my car at idle.... I turn on seat back heat only... wait.... it doesn’t work, but never throws any codes. I try the passenger seat back to confirm that I know what heat is supposed to feel like... ah yes, that’s very nice and warm... I then click to engage the seat bottom on the driver side, and boom. Immediately throws the mechanical leak/failure code. I mean it takes a few seconds and spins up, but before it even does that it throws the code.

So... the seat back does NOT heat, but it never throws a code until you engage the seat bottom. Strange. I really really really don’t want to replace the seat bottom unit/foam/ducting! Please tell me there’s a chance that when I replace the seat back unit, all my troubles will go away and I’ll have a warm butt on my way to North Carolina next weekend. I beg of you.

Just had my heated driver's seat stop working, not got the time or weather at the moment to look into sorting the problem so as a temporary measure I've ordered a plug in heat pad, link below
https://www.ebay.co.uk/itm/12v-heated-seat...2749.l2649

Worth it to have a warm bum and back till I can get the bits sorted, will probably get both peltier units and new ducting for the seat base. No point trying to 'fix or fettle' the existing bits, just replace with new units then I know I'll be both toasty and cool as the need arises.

GGDR wrote:

I wouldn't get a replacement seat. Colour match / fade for one. You'll also be getting two used heat/cool units and they only last a finite period to better to just replace the unit(s).

Getting a secondhand seat and taking the units out might be a way to go. But I personally would only look at doing that from a passenger seat. Passenger typically seats get a lot less use.

Yes they communicate together in series as I understand.

But a fault with heating function in either unit means, despite error codes, you do need to replace the unit.

.

carmaniac37 wrote:

Appreciate any help. I'll update with the seat back swap once this freak November snow storm is over here in NY.

I have been reading this thread with interest as the driver and passenger seats on my 2007 322 are not working properly (I suspect the back motors from reading).

I think I will do some testing and then just source new motors however I did just come across this:

https://www.ebay.co.uk/itm/114223609466

Looks like someone in the US is selling replacement Peltier cells, part of me thinks that if the ducting goes brittle and cracks causing overheating that this could end up being a waste of money and I imagine a lot of time and stress .

I wonder if anyone has come across this, maybe if the ducting could also be replaced with something more “off the shelf” There is a potential refurb option.

I also feel like I read somewhere that the parts in the Jaguar XJ are the same but a lot cheaper although I may have dreamt it, has anyone looked into that?

Thanks 2007 Range Rover L322 TDV8 Vogue SE (Rimini Red)

the ebay option seems new to me, having done a lot of experimenting (see earlier pages) - I think you should give it a go. I have some some non-working units I was going to put on ebay btw.

. Cheers, Greg
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2011 Vogue SE 4.4 with lots of toys in Stornaway

I think I will have a go at removing the driver’s one at the weekend and see what it looks like with the ducting etc. 2007 Range Rover L322 TDV8 Vogue SE (Rimini Red)

So I have just taken a proper look at both the ventilated seats on my 2007 Vogue SE and this appears to be the status:

Drivers Seat
If I turn the dial to cooling both the back and lower blowers seem to come on and operate as normal (I think).
When I then switch the dial to heating there appeared to be a little life for a few seconds then nothing, after that even switching back to cooling left both blowers lifeless.

Passenger Seat
Cooling seems to work fine also on both motors but heating appears to do nothing. interestingly though when I then flick back to cooling they both start blowing again unlike the drivers side.

Would this indicate both back Peltier cells have gone?

This is as far as I got with the strip down, I'm hoping the back motor is fairly straightforward to remove although the lower half seems to be obscured. Any advice would be greatly appreciated.

Interestingly the part number on the Drivers side (L0084982) seems different to the one previously mentioned in the thread and seems to ring through as a part for a Jag XF, does that sound right?

Can't really comment regarding part umbers, only to say that 2007 is a good four years from 2011 so they might have updated within that time.

Getting the rest out should be easy from the seat back. Seat bases are another matter.

The cut off after a few seconds on heat setting you describe is typical of a peltier unit failure. Yes they tend to still cool but won't heat.

Once you get the unit out, inspect the ducting and repair with, well duct tape. Plug in and test. Sometimes (but not usually) a repaired ducting crack will come back to life.

. Cheers, Greg
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2011 Vogue SE 4.4 with lots of toys in Stornaway

So having unhooked the white ribbons covering the blower and carefully pulling off the black plastic duct on the lower right which covers the filter and fan you can get access to the 3 TX20 screws that along with unplugging the connector and removing a couple of cable ties allowed the assembly to be carefully pulled out.

Click image to enlarge

Quote:

If it is I will order one solder it in and post my findings

I did see that yes. Good work!

I wonder if striping the mustang one and taking out The peltier would work in the LR assembly.

Re assembled with the repaired duct and no change so I’ve ordered a peltier. Long delivery but will see what happens. 2007 Range Rover L322 TDV8 Vogue SE (Rimini Red)

Hi Michael,

The Mustang unit IIRC was the same except for the housing, including wires / wire colour.

I did think it, both having Ford (supplier) origins, would work... but alas not.

I bit the bullet but there must be a solution out there and great you found a supplier.

When I did my experiment, there seemed nowhere to buy a replacement peltier.

Do they give any idea about compatibility?

. Cheers, Greg
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2011 Vogue SE 4.4 with lots of toys in Stornaway