I need to replace my battery and I'd like to preserve the radio antitheft codes. Some time ago I saw an ad for a little gizmo that used a 9 v battery connected through the cigarette lighter to preserve the radio codes (and station presets). Now of course I can't find it. Anyone out there know what I am talking about and know ehere to get one? TIA

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Alan Weinschel
2001 S500 Capri Blue
2004 E320 4matic Wagon Tectite
1992 300TE 4matic Black Pearl
2000 BMW 540ia Anthracite

Might work on some cars but definitely not on MB. MBs lighter is not operational unless the key is on. With the key on the electrical output will take a 9v battery to nothing before you can get out of the car.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician

Your PRESET radio stations shouldn't reset if the battery is unplugged for a short time.

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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!)

yes, i found that after entering the radio code on a recent service, all my presets where still there...

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joE
1993 300e-2.8 - gone now <sigh>
"Do not adjust your mind, it's reality that's malfunctioning"
http://banners.wunderground.com/bann...L/Key_West.gif

I pulled the Becker from my 87 300E December of last year, intending to upgrade everything. Well, one delay led to another, cash got diverted, etc. The point is, 6 months later I reinstalled the Becker head unit, and it still had the pre-sets!!! Do they store in EPROMs, non volatile RAM, or? I know it isn't like my 54 chevy where you mechanically locked a pre-set by pulling the station button out and pushing back in, like setting the tabs on a manual typewriter. :p

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John

2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)

Click to see 87 300E