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  #1  
Old 10-24-2001, 09:50 PM
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126 seat adjust problem

Hi,

I just bought an '86 420sel and its got an odd little problem: the seats will only adjust with a door open (either passenger or driver), independently of whether the key is in or out or the ignition on. Any ideas?


Thanks

Martin
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  #2  
Old 10-24-2001, 11:58 PM
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Common problem. Open the fuse box. Toward the back you'll see a small gray two pin diode. Open it and check if it is burned. If it is, replace it.

Vinamg
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  #3  
Old 10-25-2001, 03:34 AM
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The seats are designed to only operate with either front door open or the key in the ignition!
This is not slight problem, it's the way it is!

I think they did this as a safety feature (kids pushing the buttons squishing themselves?).

You seem good to go,
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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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  #4  
Old 10-25-2001, 04:06 AM
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You are correct about it being a safety feature, unless it doesn't work even with the ignition on. In other words, if you need to open the doors with the ignition on to adjust seats then the diode is burned.

Vinamg
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  #5  
Old 10-25-2001, 04:16 AM
David C Klasse's Avatar
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Vinamg,
Once I saw your re-reply, I knew I must have read it wrong, so I re-read it, and sure enough! Then I saw your post it came together.

Sorry about that! :p
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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)
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  #6  
Old 10-25-2001, 04:19 AM
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No problem.
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  #7  
Old 10-25-2001, 01:52 PM
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Location: Vancouver, B.C.
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Great. Sounds easy - would that all car problems were like that. (I had a shop in Orange County tell me it would take 5-6 hours of diagnosis!!)


Thanks

Martin
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