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#1
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power seat blowing fuse
Greetings,
I've got a 1987 420SEL which I just recently took ownership of...everything works great on it except the power seat adjustment on the driver's seat. The fuse which controls power to it keeps blowing, sometimes after a few minutes of "seat adjustment", sometimes when not even using the power seat adjustment! I am using a 25amp fuse as described in the fuse box cover. I've checked what I can underneath the seat looking for exposed wiring and such and it all looks undamaged as far as I can see without removing the seat. Anyone got any experience with a problem like this? thanks in advance dchang
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D. Chang Network Integration Engineer MCSE, CLP, CCNA |
#2
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The under-seat harnesses are pretty robust (at least from looking at the W124 and R129 units with the seats removed), so unless you have standing water or an unusual kink or sharp object severing the wires and exposing them, I wouldn't consider that area.
Are your seat switches on the seats or on the door panels? If on the door panels, I would look there first. The switch harness is a bit thinner in that area, and if the wires got pinched after a recent door panel removal and possibly the window mechanism intrusion, then that might be the place to look... ...also, the fuse blowing w/o the operation of the seat switch has me perplexed. What other accessories share that fuse? Perhaps it's not the seat at all?
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2009 ML350 (106K) - Family vehicle 2001 CLK430 Cabriolet (80K) - Wife's car 2005 BMW 645CI (138K) - My daily driver 2016 Mustang (32K) - Daughter's car |
#3
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after using the switch today for the power seat, noticed that the memory button was not working right, instead of returning the seat to memory position one, it would activated the backrest!
am definitely thinking this switch is going south on me, will see about taking it apart this weekend to inspect for obvious damage...or maybe I should just replace the whole switch mechanism.
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D. Chang Network Integration Engineer MCSE, CLP, CCNA |
#4
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well, I replaced the switch with a similar one from the local junkyard...not quite the same when it came to depth but all the control rod locations were the same....it works for now.
we'll see if the fuse blows again.... all the wiring and connectors leading to the switch appeared unworn.
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D. Chang Network Integration Engineer MCSE, CLP, CCNA |
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