Question about 2008 BMW 535i Sedan
The fob no longer works ,so every time I open doors orstart engine the hazard lights flash for about 20 seconds ?
Do you have the diamond shaped key? If so, the battery isn't meant to be replaced (it charges when put in the ignition). You have a few options:
1. Buy a new key from the dealer. A new key costs about $250 and they'll probably have to order it.
2. You could try to cut open the key and replaced the rechargeable battery. Your key wasn't meant to be opened so it will be tough.
If you go this route, you'll want a new cover since it now looks terrible. Look on ebay and buy diamond shaped blank key. There are 2 type; one with a notch and one without. Get the blank key cut and move the internals from your old to your new key.
If you don't have the diamond shaped key, look for the seam and a small notch on the side of the key and pry it open to access the battery. You can find the battery (the correct size is printed on top of the battery) at Amazon.
Posted on Jan 25, 2013
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Posted on Jan 02, 2017
right have a check down your local garage if they do diagnostics be about 15-30 pound well worth it tells you a hell of alot more then wht i can say here but on e46s any lil prob tht asc light wil come up its warning you cars not right beware in other words. ive had it on rear abs sensors the asc light is just warning but have them plug it in to diagnostics tht will tell you all about it and whts going on prob sensor somewere let me no how you get on..
Posted on Jan 03, 2009
locking and unlocking with the key is to deactivate the alarm not activate it, the alarm is activated every time the car is locked with the remote automatically, u need do nothing else
Posted on May 03, 2009
The flashing light does not mean you have an alarm. They were not standard in the 3-series.
You can get one installed or if you want the dealer can program the lights to flash when locking and unlocking doors even with out alarm. This is called "acknowledgement without DWA"
Posted on May 27, 2009
SOURCE: E36 BMW 318I CENTRAL LOCKING
try locking and unlocking the car with the key 3 times slowly ,other than that i have no idea ?? another trick is to disconnect battery and join the cables together for a few minutes to discharge any capacitors that may be holding a charge in the computer..Only other thing i can think of is the main dealers who have the right connectors and software to re set it all .sorry i havent been of any help
Posted on Aug 05, 2009
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