Keyless Go Batteries

awiner · 12-31-2004, 10:48 PM

Just a heads up for Keyless Go owners. Thew last month when attempting to lock my doors via Keyless go I have noticed about 60% of the time the doors would not lock.

I figured I would the dealer look into this at my next service which should be coming up in a couple months.

The other day I got the message "Key Card Batteries Check" on the MFD when starting the car.

I replaced the 2 CR2025 batteries in the Keyless Go card and it fixed the problem.

Doors lock instantly, open instantly and the car starts instantly. Looks like with daily use the batteries last about 23 months before getting low to the point that the transmission gets weak.

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victoryroad · 01-04-2005, 12:08 PM

That is good to know. My car was in service late March 2003 and lately I have noticed a delay in response from the doors and trunk so should take the cards to the dealer for a battery change. The cards may have been made well before the car's delivery so the batteries are probably close to two years old.

theboogers · 01-04-2005, 04:37 PM

when changing the batteries do they have to be reprogrammed? thanks

theboogers · 03-02-2006, 07:35 AM

awiner- did you do this yourself or does the dealer have to reprogram the card key?

awiner · 03-02-2006, 03:51 PM

No re-programming required. Just change the batteries....

AMG2GO · 03-02-2006, 10:01 PM

theboogers, you know you still owe me $100?!

01-04-2005, 04:37 PM	#3
theboogers Super Member Garage is empty, add now Join Date: Jan 2002 Location: balt,md usa Posts: 871 Drives: 12-s350,06 ml500, 03 sl55, silver, pano, slr cams, evo headers, lsd, 03s55 black	when changing the batteries do they have to be reprogrammed? thanks __________________ sold long ago- 65 Chev Impala fastback 69 Triumph GT6 71 BMW Bavaria 3.0 64 AC ACE conv. 59 190SL 70 280SEL 4,5 70 250C 72 350SL 4.5 73- 450SLC 79 Porsche 928 91 735IL 81 380SL 90 500SL 97 C5 vette 92 500SL 00 RX300 lexus 01 ml430 01 BMW X5 V8 02 XKR100 Jag Coupe 01 CL500 03 SL500 -2012s350 -03 SL55 silver/ash ,pano, ecu upgrade, vrp TB, vrp AB, vrp pulley & wrap, EVO spacers and headers,slr cams, lsd, -03 S55 black/black, ecu upgrade -06 ml500 blk,blk

03-02-2006, 07:35 AM	#4
theboogers Super Member Garage is empty, add now Join Date: Jan 2002 Location: balt,md usa Posts: 871 Drives: 12-s350,06 ml500, 03 sl55, silver, pano, slr cams, evo headers, lsd, 03s55 black	awiner- did you do this yourself or does the dealer have to reprogram the card key? __________________ sold long ago- 65 Chev Impala fastback 69 Triumph GT6 71 BMW Bavaria 3.0 64 AC ACE conv. 59 190SL 70 280SEL 4,5 70 250C 72 350SL 4.5 73- 450SLC 79 Porsche 928 91 735IL 81 380SL 90 500SL 97 C5 vette 92 500SL 00 RX300 lexus 01 ml430 01 BMW X5 V8 02 XKR100 Jag Coupe 01 CL500 03 SL500 -2012s350 -03 SL55 silver/ash ,pano, ecu upgrade, vrp TB, vrp AB, vrp pulley & wrap, EVO spacers and headers,slr cams, lsd, -03 S55 black/black, ecu upgrade -06 ml500 blk,blk

03-02-2006, 03:51 PM	#5
awiner Super Moderator Garage is empty, add now Join Date: Nov 2001 Location: Southern California, USA Posts: 5,919 Drives: 2003 CL55 AMG	No re-programming required. Just change the batteries.... __________________ Adam *2003 CL55 V8 Kompressor* Parktronic, v60 Phone, Keyless Go, Trunk Closer, Painted Front Side Lenses MP Designs Sport Steering Wheel, 19" HRE 847R's, Brabus Lowering Module Ice>Link Plus iPod Photo 40GB Color Integration into Factory COMAND *2005 MV Agusta F4-1000* *2005 Kawasaki ZX-6R (636)*

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01-04-2005, 12:08 PM	#2
victoryroad Senior Member Garage is empty, add now Join Date: Nov 2001 Location: Boston Posts: 330 Drives: 2003 CL55	That is good to know. My car was in service late March 2003 and lately I have noticed a delay in response from the doors and trunk so should take the cards to the dealer for a battery change. The cards may have been made well before the car's delivery so the batteries are probably close to two years old.

03-02-2006, 10:01 PM	#6
AMG2GO Super Member Garage is empty, add now Join Date: Dec 2004 Location: Boston Posts: 934 Drives: NSX	theboogers, you know you still owe me $100?!

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