Seat Relay
Joined: Jul 2009
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Re: Seat Relay
Turbo,
Dave's pictorial and how to are OUTSTANDING !! Simply didn't want anyone tearing their car apart because they felt that normal op wasn't correct.
Dave,
From one who has benefitted numerous times from your experience.. Many Thanks
V/R
Tim
Dave's pictorial and how to are OUTSTANDING !! Simply didn't want anyone tearing their car apart because they felt that normal op wasn't correct.
Dave,
From one who has benefitted numerous times from your experience.. Many Thanks
V/R
Tim
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Senior Member
Joined: Apr 2006
Posts: 25,432
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From: Ontario
Re: Seat Relay
OK, I have been away for a few days.
My mistake, that's the third mistake in my whole life, it's becoming a habit. LOL
The seat works door open with the ignition OFF.
The seat works doors closed and ignition ON.
I'll amend my other posts, sorry, why I said that I do not know. My first post does not mention door closed and I assume in the later replies I thought differently and was wrong.
I checked both cars and they worked the same. I am in the two Crossfire club for now, my wife says that the old one has to go, she's right again just like she says she always is.
My mistake, that's the third mistake in my whole life, it's becoming a habit. LOL
The seat works door open with the ignition OFF.
The seat works doors closed and ignition ON.
I'll amend my other posts, sorry, why I said that I do not know. My first post does not mention door closed and I assume in the later replies I thought differently and was wrong.
I checked both cars and they worked the same. I am in the two Crossfire club for now, my wife says that the old one has to go, she's right again just like she says she always is.
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Joined: Dec 2007
Posts: 392
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From: Rathdrum, Idaho
Re: Seat Relay
Originally Posted by 2005 Ragtop
Dave,
"Okay, what about this from page 8N-95 of the 2005 service manual ? "The driver side power seat switches are operational with the driver door open, regardless of the ignition switch key position. If the driver door is closed, the ignition switch key must be turned to the ON/RUN position".
"Okay, what about this from page 8N-95 of the 2005 service manual ? "The driver side power seat switches are operational with the driver door open, regardless of the ignition switch key position. If the driver door is closed, the ignition switch key must be turned to the ON/RUN position".
Re: Seat Relay
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Senior Member
Joined: Apr 2006
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From: Ontario
Re: Seat Relay
Originally Posted by turbomar
In my case, the seats wont move unless I turn the ignition on, doors open or closed. I thought this was normal until I read this thread. Do you think it would be the other diode that would be defective Dave?
sooo, my issue is: seats wont operate with doors open and ignition off
sooo, my issue is: seats wont operate with doors open and ignition off
Your problem is the opposite of mine in the first post, my later posts were incorrect half the time, I guess I assumed wrongly. My first post was unclear in one regard but not wrong.
I assume (that's often the first mistake) that it's the other diode that is broken on yours. However, on the Mercedes forums it has been noted that this relay often suffers from dry solder joints, so that's another option.
Your fault is easier to accept than the one I had, who wants to open the door at speed to adjust the seat.
PM me your address and I'll send you two diodes that may work for you (you need only one) if you cannot find the surface mount type, no charge, all part of the Crossfire network of friends.
Last edited by onehundred80; Nov 23, 2011 at 07:12 PM. Reason: Corrected original post.
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Joined: Jul 2011
Posts: 914
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From: Barrhaven, Ontario
Re: Seat Relay
Originally Posted by onehundred80
I have corrected my posts to reflect what happens when the doors are open or closed with the ignition ON or OFF and the combinations of same.
Your problem is the opposite of mine in the first post, my later posts were incorrect half the time, I guess I assumed wrongly. My first post was unclear in one regard but not wrong.
I assume (that's often the first mistake) that it's the other diode that is broken on yours. However, on the Mercedes forums it has been noted that this relay often suffers from dry solder joints, so that's another option.
Your fault is easier to accept than the one I had, who wants to open the door at speed to adjust the seat.
PM me your address and I'll send you two diodes that may work for you (you need only one) if you cannot find the surface mount type, no charge, all part of the Crossfire network of friends.
Your problem is the opposite of mine in the first post, my later posts were incorrect half the time, I guess I assumed wrongly. My first post was unclear in one regard but not wrong.
I assume (that's often the first mistake) that it's the other diode that is broken on yours. However, on the Mercedes forums it has been noted that this relay often suffers from dry solder joints, so that's another option.
Your fault is easier to accept than the one I had, who wants to open the door at speed to adjust the seat.
PM me your address and I'll send you two diodes that may work for you (you need only one) if you cannot find the surface mount type, no charge, all part of the Crossfire network of friends.
I appreciate and respect your opinion. Thanks for the Diode offer... PM sent!
Mario
Joined: Dec 2010
Posts: 68
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Re: Seat Relay
Recent experience...... 12/27/2010 bought a used 2005 Coupe Limited
Horn wasn't working.... they replaced the Horn module... took 14 days to arrive.
Ready to drive it off the lot and attempted to adjust driver seat.... nothing, and same for the passenger side. Both had been working when I dropped it off.
Informed the Horn module had no association with the power seat movement.
About 45 minutes later the problem was corrected, and didn't bother to ask what, or where the problem was. There was no charge to correct this.
Horn wasn't working.... they replaced the Horn module... took 14 days to arrive.
Ready to drive it off the lot and attempted to adjust driver seat.... nothing, and same for the passenger side. Both had been working when I dropped it off.
Informed the Horn module had no association with the power seat movement.
About 45 minutes later the problem was corrected, and didn't bother to ask what, or where the problem was. There was no charge to correct this.
Senior Member
Joined: Jul 2011
Posts: 914
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From: Barrhaven, Ontario
Re: Seat Relay
I assume (that's often the first mistake) that it's the other diode that is broken on yours. However, on the Mercedes forums it has been noted that this relay often suffers from dry solder joints, so that's another option.
Your fault is easier to accept than the one I had, who wants to open the door at speed to adjust the seat.
Your fault is easier to accept than the one I had, who wants to open the door at speed to adjust the seat.
I have 1 diode left for someone who may require one, that is if Dave doesn't mind me regifting
Last edited by turbomar; Jul 1, 2012 at 05:25 PM.
Joined: Dec 2010
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Re: Seat Relay
Ignition Off...Doors Open (one or both).... Seats can be adjusted.
Ignition Off...Doors Closed.................... Seats cannot be adjusted.
Ignition On...Doors Closed..................... Seats can be adjusted.
The relay that was replaced.... was hot to the touch upon removal.
Last edited by XFire-GTO; Jul 23, 2012 at 04:19 AM.
Joined: Dec 2011
Posts: 134
Likes: 5
Seat Relay
Hi guys and gals, can anyone tell me where the seat relay is located in British version of Crossfire roadster 2005 model, as I bought one but cannot locate it, pics or documents to tell me would be much appreciated, thanks , Teak
Joined: Jul 2012
Posts: 10
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From: Parker CO
Re: Seat Relay
Hey Xfire-GTO did replacing your relay solve your problems?
I just picked up my xfire last week and I think I’m having the exact problem you are. What I have noticed is that the drivers power seat works correctly for about 3 minutes and then it quits. If I let the car sit with key off and doors closed for a while when I come back the seat is working again.
I pulled the relay out and checked the diodes, touched up all the solder joints everything looks OK. Put it back in the seat worked for a few minutes and quit. Went to pull the rely out again and it was very hot.
I don’t know if something is drawing a lot of current and overheating a circuit or if the rely just fails to work when it heats up.
I just picked up my xfire last week and I think I’m having the exact problem you are. What I have noticed is that the drivers power seat works correctly for about 3 minutes and then it quits. If I let the car sit with key off and doors closed for a while when I come back the seat is working again.
I pulled the relay out and checked the diodes, touched up all the solder joints everything looks OK. Put it back in the seat worked for a few minutes and quit. Went to pull the rely out again and it was very hot.
I don’t know if something is drawing a lot of current and overheating a circuit or if the rely just fails to work when it heats up.
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Senior Member
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From: Ontario
Re: Seat Relay
Thread Starter
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Senior Member
Joined: Apr 2006
Posts: 25,432
Likes: 647
From: Ontario
Re: Seat Relay
Hey Xfire-GTO did replacing your relay solve your problems?
I just picked up my xfire last week and I think I’m having the exact problem you are. What I have noticed is that the drivers power seat works correctly for about 3 minutes and then it quits. If I let the car sit with key off and doors closed for a while when I come back the seat is working again.
I pulled the relay out and checked the diodes, touched up all the solder joints everything looks OK. Put it back in the seat worked for a few minutes and quit. Went to pull the rely out again and it was very hot.
I don’t know if something is drawing a lot of current and overheating a circuit or if the rely just fails to work when it heats up.
I just picked up my xfire last week and I think I’m having the exact problem you are. What I have noticed is that the drivers power seat works correctly for about 3 minutes and then it quits. If I let the car sit with key off and doors closed for a while when I come back the seat is working again.
I pulled the relay out and checked the diodes, touched up all the solder joints everything looks OK. Put it back in the seat worked for a few minutes and quit. Went to pull the rely out again and it was very hot.
I don’t know if something is drawing a lot of current and overheating a circuit or if the rely just fails to work when it heats up.
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Joined: Jun 2012
Posts: 502
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From: Derby, KS
Re: Seat Relay
What's the best way to diagnose both seats not working? No fuses are popped, I even put in 5A fuses to test if there was current going through the circuit, and the fuses didn't blow. From my understanding it's either the switch or relay correct?
Joined: Dec 2011
Posts: 134
Likes: 5
Re: Seat Relay
hi there Selby, I would check if seats move when door/doors are open, as this was the case with mine, this was a fault in the relay, which I bought and got it fitted and this cured the problem , hope this helps, Teak
Joined: Oct 2010
Posts: 8
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Re: Seat Relay
If both seat controls are not working, I would bet it's definitely a faulty seat relay. My seats intermittently did the same thing. The dealer had my car for almost two weeks and couldn't figure out the problem. I referenced Electrical. Miscellaneous under the index of Crossfire problems, repairs and How Too's and replaced the relay myself approximately two years ago. I have not had a problem since.
Joined: Sep 2014
Posts: 46
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From: St. Augustine,Florida
Re: Seat Relay
I fixed my power seat today, thought i would add mine to the list for those who are looking for information. My seats would not move at all then for no reason I could find they would start working. the door had no part in my problem. after my research here I decided it was the seat relay. I pulled down the dash under the wheel(not hard) one screw under the steering column release's trim to find two more screws. two screws hidden behind the fuse panel beside a/c vent. one screw on the hood release and the rest on the underside in clear view. if memory serves. the relay was just where others said it would be. pulled it apart could not see any obvious problems. So I got a magnifying glass and on one solder point I saw it was cracked around the solder point. WOW, I Soldered it adding more solder and put it back together, works fine.
Thanks to all the information here it was a breeze.
Thanks to all the information here it was a breeze.
Joined: Nov 2013
Posts: 1
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From: N. Texas
Re: Seat Relay
Any chance the pics of this relay are still available?
My seat is stuck in full forward position.
never mind, i found them.
My seat is stuck in full forward position.
never mind, i found them.
Last edited by zach71; Nov 21, 2014 at 12:32 PM. Reason: update
