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#1
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Preparations for main battery replacement or key fobs dying
It's about time for one or more of them to fail, and a current thread https://xoutpost.com/bmw-sav-forums/...ml#post1239546 reminded me of the upcoming problems. As the OP of that thread stated Quote:
Battery replacement?
OEM diamond key failure?
Cheap generic key fobs, second purchase?
Possible EWS problems?
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide |
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#2
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Fellow Geezer here, so limited opinions vs the younger/still mechanically inclined fellow posters...
Batt R&R is a PIA, but not impossible. It requires getting to batt and a long pair of arms. Maybe do it in a cool/shady indoor spot? I have done a batt R&R a few times on our 2001 E53, and it is probably due for a new one. I have had v good luck with sealed AMG type batts from Battery+ or AutoZone, over the last 23 yrs. I would skip the task of 'How is my current battery doing' and just get a new sealed batt of proper rating/size/physical size and R&R it, or have a shop do it...our year(s) do not require any 'coding' or matching like new X5s do. I do a low amp Battery Tender on newly purchased batt for a day or so, when I get them home to bring them up to full easy charge, before installing, fwiw. Key: I have lost one of the orig/OEM fob & key, but I passed on the side bar versions and spent the ~ $250 at a BMW dlr for a new 'real' version. Easy and quick and they work without fiddling, and they did the 'coding' or key synch for me for at that price. Was worth it for me vs fiddling.. My 50Cts... GL, mD
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Ol'UncleMotor From the Home Base of Pro Bono Punditry and 50 Cent Opins... Our Mtn Scenes, Car Pics, and Road Trip Pics on Flickr: http://www.flickr.com/photos/4527537...7627297418250/ http://www.flickr.com/photos/4527537...7627332480833/ http://www.flickr.com/photos/45275375@N00/ My X Page |
#3
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+1 on most of that Replace the battery with an AGM and get a second key from the dealer plus make sure that the drivers door manual key operation is good, best way would be to replace the actuator shaft thingy that breaks or at least lube it well in any case and you have all the bases covered. I have never heard of anybody losing EWS synch when replacing battery, I think it only happens if the voltage is low for long enough for one module to loose the code and not the other.
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
#4
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good advice
Quote:
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide |
#5
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Waiting for a problem with the battery is how you are much more likely to lose the EWS synch. If you don't want to spend any more money on the key fobs then at least make sure that the manual lock is working and dependable.
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1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) |
#6
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I go thru a battery every 4 to 6 years it seems on my x5. No warning when they fail, and the lights, etc usually work but the car just won’t crank.
I had similar concerns about my 22 year old keys so I bought one OEM BMW key for peace of mind. The BMW/Mini site that gets mentioned a lot on the forums was the cheapest and easiest place. Now I’ve got one new master key and two 20 year old back-up keys to turn the lock if I loose the new one. I worry about the EWS system, as well, but not sure what to do about it other than a full delete which I’m not sure I’m ready for.
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Current Original owner 2002 E53 X5 4.4i to 4.6i swap 2025 G06 X5 50e Former 1972 Audi Fox 1986 Saab 900S 1996 BMW Z3 1998 BMW E36 M3 Sedan 2004 BMW E46 M3 2006 Audi A3 Quatro 1993 Mopar 318 Jeep Grand Cherokee 2015 V6 Jeep Grand Cherokee |
#7
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Reading about EWS issues can skew our perception of how much of a problem it really is. Most of us never have any issues with it but when you DO have a problem, it's a show-stopper and gets lots of column inches on forums like this!
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
#8
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I test the manual door lock every three months, but hopefully that's not so much to cause problems.
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01 BMW X5 E53,3.0i-5L40E, 7/13/01 topas-blau,Leder-grau,"resto-project car" Here: 14 Lexus ES350,3.5L-U660E 09 HHR Panel,2.2L-4T45E 04 Chevy 2500HD,6.0L-4L80E 98 GMC Sierra 1500,5.7L-4L60E Gone: 66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake 08 Cobalt Coupe,2.2L-4T45E 69 & 75 C10s,350c.i.-TH350 86 S10,2.8L-700R4 73 Volvo 142,2.0L-MT4 72 & 73 VW SuperBeetles,1.6l-MT4 64 VW,1.2l-MT4 67 Dodge Monaco 500 2dr ht.,383c.i.-A727 56 Chevy 210 4dr,265c.i.-PGlide |
#9
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Sounds right. Sort of like the crank position sensor. Total show stopper when it happens, but pretty rare. I just swapped mine out after 22 years as I was worrying about it, somewhat obsessively. Frankly, given how crappy some parts seems to be these days, the new one is just as likely to fail as the 22 year old one it replace.
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Current Original owner 2002 E53 X5 4.4i to 4.6i swap 2025 G06 X5 50e Former 1972 Audi Fox 1986 Saab 900S 1996 BMW Z3 1998 BMW E36 M3 Sedan 2004 BMW E46 M3 2006 Audi A3 Quatro 1993 Mopar 318 Jeep Grand Cherokee 2015 V6 Jeep Grand Cherokee |
#10
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Delete EWS. Super easy todo on our E53s. The only problem is any key or devise that can turn the tumbler will start it. You can install a hidden manual power switch if EWS is deleted. The delete costs less than a dealer key. How many of our E53s get stolen a year? Are parts are worth a lot of money? I think we only need to worry about joyriders taking our ride.
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'06 X5 3.0i - bought @143,123 miles (12/26/20) |
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