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E85 / E86 Z4 (2003-2008)
E85 Z4 Roadster, E86 Z4 Coupe, E85 Z4 M Roadster, and E86 Z4 M Coupe talk with our BMW gurus here.

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  #1  
Old 03-23-2013, 09:04 PM
KamperArt KamperArt is offline
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Location: Miami
 
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Mein Auto: None.
Z4 ,Replaced Starter, still 1 click..no crank.

Hey Bimmers, my apologizes Iv have not introduce myself yet, But i promise shortly.

Just like what the title said. I'm doing a job on Z4 BMW 2.5L E85 today. I did a hearing simple diagnose and heard 1 click every time a turn the key and made no crank. So I guessed it was the starter that will need to be replaced.. My clients just told me he just got a new battery. a week later (to today) the starter goes bad. I took it guessing the weak battery has been a while killing the starter.

I replaced the starter and still does the same thing ( 1 click , no start). I removed the new starter, took the new and the old starters, and also the brand new battery just in case to the auto parts to get them tested. Both starter came out working running ( the old one sound weaker)and the Battery came with perfect result as high CCA and excellent Volts. So i installed the new starter, still doing the same thing. I check all the wire, 3 times made sure all the connect is properly tight.

I was hopping if you guys have ever came to this problem or have any suggestion what else i should check. Im a beginner experience working on these Z's and the BMW. So I don't know if theft could be involve, or something electrical.

KamperArt's
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  #2  
Old 03-23-2013, 10:41 PM
MINI+BMWtek MINI+BMWtek is offline
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Location: Houston
 
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Mein Auto: e30 318
I assume you have the N52, a short test will be a good start and voltage drop tests and quality and correct battery may be a good start

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Old 03-24-2013, 05:28 AM
brock5ga brock5ga is offline
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Location: Monroe, GA
 
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Mein Auto: Z4
Quote:
Originally Posted by MINI+BMWtek View Post
I assume you have the N52, a short test will be a good start and voltage drop tests and quality and correct battery may be a good start

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Voltage drop test as stated above on both power and ground sides. Follow both main cables from the battery to the front of the vehicle and check at every connection they pass through. Might be a loose lug or corroded connection at one of the power distribution points. Also make sure the battery terminal ends are clean and tight and the wires are not badly corroded entering the terminals.
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Old 03-24-2013, 07:56 AM
KamperArt KamperArt is offline
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Arlight, Will do.
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  #5  
Old 03-27-2013, 02:35 PM
KamperArt KamperArt is offline
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Solved.

Ah, solved, I got contact with my client, and told me i was right about the problem, that could be open circuit from the battery cable to the starter. Thanks you guys for some helpful tips.
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