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Old 24th November 2010, 17:51   #41
DouglasABaker
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You are correct - I was thinking of my wife's car that has a single button to turn on both seats (doh!). If you've unplugged the one seat then you are good except for having a potentially live wire dangling about. I'd disconnect the switch as well, but I'm also a bit anal about electrical items - you are most likely completely safe as you've got it now.

d-
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Old 24th November 2010, 18:05   #42
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Quote:
Originally Posted by DouglasABaker View Post
You are correct - I was thinking of my wife's car that has a single button to turn on both seats (doh!). If you've unplugged the one seat then you are good except for having a potentially live wire dangling about. I'd disconnect the switch as well, but I'm also a bit anal about electrical items - you are most likely completely safe as you've got it now.

d-


a single button to turn on both seats? can they operate independently?
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Old 24th November 2010, 18:53   #43
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If you unplug the passenger seat and the fuse does not blow that does not mean you have isolated the problem. It means there is less resistance with only one heat seating and the fuse will not blow. An easy thing to do would be to compare the resistance of both seats with each other. If one seat is significantly higher than the other (causing fuses to blow) this may indicate a problem. Maybe one of the experts on the forum (I'm not an expert) has or knows what the R value should be. Don't substitute a larger fuse.

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Old 24th November 2010, 18:59   #44
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Generally speaking the live wire would have a female plug and would not pose a danger unless something grounded was pushed into the opening.
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Old 27th November 2010, 02:22   #45
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I'm going to jump in here with a problem of my own. I recently attempted to turn on the seat heater and got no response from either button.

Fuse #32 is not blown and the connections under the seat appear to be intact.

Are the seats wired separately or in series?

When the switch goes bad, do both buttons cease to function?

Ideas?
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Old 27th November 2010, 06:10   #46
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Does anyone know if these are a direct replacement swap for my 2000 M5 leather interior?

BMW E38 740IL 750IL 740 HEATED MASSAGE FRONT SEATS OEM - eBay (item 140471548460 end time Nov-27-10 21:08:36 PST)

Main reason I originally bought a luxury car is I have a bad (and getting worse daily ) back.
If all the wiring harnesses and such are on my car for a plug and play......I will be looking for a black set of these asap.

Randy
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Old 15th December 2010, 16:00   #47
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Wife traveled with me the other night so both seats were on for the first time in a while.....next day i got the common problem of the seat light lighting up for about 1 second then going out. It does this on both seats and the rear shade. Checked the 32 fuse in the glove both and it was blown. replaced it and I'm back in business. Have not tried both seats together yet as i dont have an extra fuse and its to damn cold in the morning to travel without heated seats. Hopefully someone sees this though and doesnt go replacing the control for the heated seats as most of the threads i was reading first were pointing in that direction.
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Old 15th December 2010, 18:22   #48
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Quote:
Originally Posted by nwwie39 View Post
Wife traveled with me the other night so both seats were on for the first time in a while.....next day i got the common problem of the seat light lighting up for about 1 second then going out. It does this on both seats and the rear shade. Checked the 32 fuse in the glove both and it was blown. replaced it and I'm back in business. Have not tried both seats together yet as i dont have an extra fuse and its to damn cold in the morning to travel without heated seats. Hopefully someone sees this though and doesnt go replacing the control for the heated seats as most of the threads i was reading first were pointing in that direction.
There's a good chance you have a short in one of your seats. Since it happened with the wifey I bet it is in the passenger seat.
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Old 15th December 2010, 18:31   #49
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Quote:
Originally Posted by Randy Ray View Post
Does anyone know if these are a direct replacement swap for my 2000 M5 leather interior?

BMW E38 740IL 750IL 740 HEATED MASSAGE FRONT SEATS OEM - eBay (item 140471548460 end time Nov-27-10 21:08:36 PST)

Main reason I originally bought a luxury car is I have a bad (and getting worse daily ) back.
If all the wiring harnesses and such are on my car for a plug and play......I will be looking for a black set of these asap.

Randy

Comfort seats were an option on E39s - they are the same as E38 comfort seats, IIRC. Whether or not the massage seats are the same dimensions, i don't know. www.realoem.com 's cross-reference bit is a good tool for finding out.
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Old 15th December 2010, 18:41   #50
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Originally Posted by mattmartindrift View Post
Comfort seats were an option on E39s - they are the same as E38 comfort seats, IIRC. Whether or not the massage seats are the same dimensions, i don't know. www.realoem.com 's cross-reference bit is a good tool for finding out.
They weren't an option on the E39 M5 here in the USA though.
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