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Noggymike

Heated seats problem.

Hi Guys

In the middle of sorting a few gremlins on another Noggy S4 project and need some help plz.



Basically


Drivers seat does not heat.

Pass side does.




So far I have.....

Checked fuse- OK

Checked electrical connections together under drivers seat - OK

Swopped over console switches from working pass side to non working drivers side - No difference, drivers still does not heat.



So I'm thinking:



Break in wiring from switch to seat, or no power to switch?

Heat pad faulty?




But does anyone know if seats are on separate relays?



Any help mucho appreciated


Mike
TurboTy

Seat definitely works?

Try turning on the heated seat without if plugged in, put a multi-meter across the plug from the car to see if there is any voltage going to the seat
Noggymike

TurboTy wrote:
Seat definitely works?

Try turning on the heated seat without if plugged in, put a multi-meter across the plug from the car to see if there is any voltage going to the seat




Not sure tbh, hence..

I thought it might be the switch so swopped from working one from passenger side, but still no joy.

so that maybe already answer the q re voltage?

Will try tomoz
C J

Swap the seats left to right. Plug them in an try them that way. You've swapped the switches so why didn't you think of doing this?! Lol!
Adz552

I have the same problem but not looked into it yet.
I think my seat heat pads are goosed
Noggymike

C J wrote:
Swap the seats left to right. Plug them in an try them that way. You've swapped the switches so why didn't you think of doing this?! Lol!



Easier to test current to seat loom than swop over, now knowing switch makes no diff?
C J

Noggymike wrote:
C J wrote:
Swap the seats left to right. Plug them in an try them that way. You've swapped the switches so why didn't you think of doing this?! Lol!



Easier to test current to seat loom than swop over, now knowing switch makes no diff?


Easier if you don't know what your doing with voltages and resistances.
Ian_C

On my 2.8, the pass seat heats red hot on both the seat base and the back rest, whereas the drivers side slowwwwwwwwwwly heats the base, and I don't think the back rest heats at all

No doubt simply a case of broken wires in the drivers seat, it has been sat in quite literally thousands and thousands of times over the course of 150,000 miles since 1999....
Noggymike

Ian_C wrote:
On my 2.8, the pass seat heats red hot on both the seat base and the back rest, whereas the drivers side slowwwwwwwwwwly heats the base, and I don't think the back rest heats at all

No doubt simply a case of broken wires in the drivers seat, it has been sat in quite literally thousands and thousands of times over the course of 150,000 miles since 1999....



I'm sure I did feel a little heat once  on the drivers side but right at the very front of the seat.

Apparently the heat pads are nla
Noggymike

Just going through Fleabay atm

surely some heat pads are interchangeable??
Adz552

I was going to buy a heated passenger seat off eBay cheap and strip the seat foam heat pads and lumbar support mechanism out of it and recondition my drivers seat. Or try and get a right hand seat out of a lhd car
Noggymike

Adz552 wrote:
I was going to buy a heated passenger seat off eBay cheap and strip the seat foam heat pads and lumbar support mechanism out of it and recondition my drivers seat. Or try and get a right hand seat out of a lhd car



B5 I guess
Adz552

Yep
Burnzybubbles

Mike just get your multimeter out and measure resistance across pins for heater pad on working seat then measure resistance on seat that's not working, if they are the same resistance then your problem is else where, just chase the problem upstream if your resistances are the same at the pads

They are just a heating element at heart so should either work or not
Noggymike

Ok

Got power to the seat connector on both sides, when switch flicked on.

Decided to try the seat swop method just for the hell of it!

Passenger seat worked in drivers position, so defo heated pad gone down

As CJ says they are nla and tbh look like a massive ballache to swop over if I found one fs.

So will call it a day on this  


At least I got to hoover under the seats and grease the runners
confusionhunter

how much are new elements? becasue many second hand ones will have the same problem, most efficient way might be trying to track down the break by checking continuity at different places of the element. I dont fancy that job much!
Adz552

Mine has gone the same and I've had a few seats apart in the past so. Think I'll do a little video when I get round to this job. I have a few more pressing issues at the moment tho
Noggymike

Turbo Hedge sent me a link on audizine

OMG

What a job to repair them!

If I end up keeping the S4 and I have a spare month off work I'll have a go at repairing the heat mat.


Up till then, I'll put me thermal Y fronts on instead.
Hoyle

My drivers seat only heats on the right hand side of the base. I'm not at all surprised though, it's something you just come to expect with cars of this age.
Noggymike

Hoyle wrote:
My drivers seat only heats on the right hand side of the base. I'm not at all surprised though, it's something you just come to expect with cars of this age.



Yeah agreed, however, a niggle is a niggle, but some ppl don't like heated seats so horses for courses!

If mine pack up on the RS, I will swop interiors as it's easier  
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