Member
'01 325Ci Vert
Key will sometimes work, other times not, other times will open the car then beep three times
Horn sounds like a 90 yr old lady trying to blow it
Convertible will occasionally hang up, other times work perfect
Battery? Anything else maybe?
02 e39 540i Sport (Son), 01 DINAN 7 (Me), 12 e70 X5 x35i (Mrs), 95 e34 525i (Daughter 2), 01 e46 325Ci vert (Daughter 1)
Wagon meister :)
BMW Tech Expert
I would take a look at the fuses, for I have seen some soft fail. Under low or normal load will work just fine, but under a heavy load like opening the top not work. Next do check the battery for if it is 5 years or older, it would be suspect in my eyes.
As for the alarm horn, that too can be failing, for it should only beep once for locking and twice for unlocking. That is connected all to the GM, so if you are having problems with the central locking system, read this website: www.bmwgm5.com
Last edited by dworthy; 06-02-2018 at 02:26 AM.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
Member
Battery checked good, 12.4v engine off, 13.9v engine on.
I'll check the fuses, thanks.
The key may need a new battery or may have battery leads cracked inside. I'll go down that rabbit hole after the fuses.
02 e39 540i Sport (Son), 01 DINAN 7 (Me), 12 e70 X5 x35i (Mrs), 95 e34 525i (Daughter 2), 01 e46 325Ci vert (Daughter 1)
Wagon meister :)
BMW Tech Expert
Another place to check is the engine ground on the passenger side of the motor. Make sure both ends are clean and tight.
If you think the key is going bad, check this guy out: www.bmwgm5.com
Lastly if you are having other electrical gremlins, the ignition switch can be the problem, worth looking into at your age of the car.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
Member
Battery voltages are low. The first reading should be at least 12.6VDC. The second reading should be in a he 14.VDC neighborhood. I’m betting your battery is shot. How old is it?
Wagon meister :)
BMW Tech Expert
Not really as 12.4v is only 25% discharged, and the range for a good alternator is 13.5 to 14 volts. At full load I have seen a new alternator drop down to 13.5v, so I wouldn't be too worried about it.
Darin
Current:
16 220i Active Tourer Platinsilver MET (C08)/Dakota Black (PDSW), P7ACA, P7LDA, P7LHA, P9BDA, 6sp Manual - Wife's new toy!
05 325it Electric Red(438)/Gray(N6TT) ZCW, ZSP 5sp Manual Back set cover, trunk mat, Euro Infra-Rot front windshield, and mud flaps! Mr. Wagon My new Winter car.
05 M3 Imolarot II(405)/Gray(N5TT) ZCW, ZPP 6sp Manual C.F. Lip, CSL diffuser, SSK, Euro Infra-Rot front windshield and a trunk liner! Mr. Go_Fast Stored for the Winter
Past:
95 318is Montreal Blue Met (297)/Beige(K1SN) RIP, killed by an Idiot.
84 M535i gray market Burgandy Rot Met/Black Leather Lowered by Intrax on bilies, poly everywhere, B&B cat back system, K&N, and a hitch! Da Beast - Still running w/400k+!
91 316i euro Tizianrot/Gray cloth - E-36 w/M-40 RIP, but great on gas! Best was 38 MPG
82 528i euro Saphire Blue Met/Blue Leather RIP
79 525 euro Green/Green RIP
79 318 Silver/Black - The first one that got it all started
M-Flight Member
Member
Darin, good to know. Thanks!
Apprentice w/#yrs. exp.
Here it is:
Member
Many auto electrical and/or battery sellers will do a load test on your battery for free. Call around to find one in your area. Wouldn't hurt/would be interesting to get two or more such opinions and compare them with us. I'm making no bets, but a load test ('specially since it's usually free) would be a great bit of ground zero diagnostic data, and I'd certainly go there first as long as the car will reliably start. If not, remove battery and take it there.
Charlie
Your mission, should you decide to accept it, is to add value to these threads, either by pictures or by descriptions, so the next person with the same or similar problem stands on your shoulders.
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