ZPOST
BMW Garage BMW Meets Register Today's Posts


Go Back   ZPOST > BMW Z4 Roadster and Coupe > General BMW Z4 Forum
  TireRack

SUPPORT ZPOST BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER, THANKS!
Post Reply
 
Thread Tools Search this Thread
      05-18-2012, 10:33 AM   #1
txz4
Major
txz4's Avatar
59
Rep
1,097
Posts

Drives: 2006 M coupe
Join Date: Oct 2010
Location: san antonio, texas

iTrader: (3)

need help, car problem.

So my cars has been a little slow to start lately, but yesterday it got worse, much worse. I was walking out to my car and I pressed the windows down button, I got in and put in the key, turned the key then all the lights and instruments went dead. Slowly, about a minute later, the lights started to come. On like a dimmer switch. finally it started. I took another stop after that and it was trying to start but wouldn't catch. Until finally on the second try it started with the help of the gas pedal catching it before it could die.

Sorry about all. The text errors, I'm on my phone.
Appreciate 0
      05-18-2012, 10:43 AM   #2
Finnegan
Dog Listener
Finnegan's Avatar
United_States
704
Rep
7,850
Posts

Drives: Z4M/. Z3M, E36/46 M3
Join Date: Oct 2008
Location: Teaching the dog to slalom

iTrader: (22)

Original battery still in the car? If so, it's probably gone. Get it checked (or check it yourself if you have the right equipment).
Appreciate 0
      05-18-2012, 10:46 AM   #3
gferil
Captain
gferil's Avatar
30
Rep
740
Posts

Drives: 06 Z4MC
Join Date: Dec 2010
Location: San Francisco, CA

iTrader: (6)

^Yep, what that guy said :-)

Sounds like the same symptoms I had before I replaced my battery.
Appreciate 0
      05-18-2012, 11:13 AM   #4
davesz4mc
Second Lieutenant
25
Rep
296
Posts

Drives: 2007 z4mc
Join Date: Feb 2012
Location: San Antonio, Tx

iTrader: (0)

Give me a call if you need a hand with anything!
Appreciate 0
      05-18-2012, 01:36 PM   #5
txz4
Major
txz4's Avatar
59
Rep
1,097
Posts

Drives: 2006 M coupe
Join Date: Oct 2010
Location: san antonio, texas

iTrader: (3)

Quote:
Originally Posted by davesz4mc View Post
Give me a call if you need a hand with anything!
Thanks man! speaking of help, do you have that link to the parts i need to order for the valve adjustment?

In regards to the battery, i replaced it some months ago with an AGM battery. Granted i havent been driving the car much lately due to the horrid weather that we had been having, im not so sure its the car not having been driven much thats causing the battery.

Just to be more specific (now that im off my phone), i lowered my cars windows yesterday on the way to my car. I got in the car, and turned the key. Heard a little pop and then all the lights and instruments went dead. About a minute and a half later as im sitting in the car sulking (), the lights started to flicker and come back in the interior like a dimmer switch being turned up. I crossed my fingers and the car finally started.

I went straight from there to the store, when i came out i tried to start the car, it sounded strong but wouldnt turn over. I gave it a second and waited till the moment felt right () and then i tried again and it turned over, it almost died but i caught it with the gas pedal and nursed it back to health. It seems fine today but im just not sure.

Maybe not worth mentioning, but i was driving in the rain last week and i noticed that twice when my windshield wipers flicked, my dash lit up like a christmas tree for a blink of an eye, if you weren't looking at the dash at the time, you would have missed it. thoughts?
Appreciate 0
      05-19-2012, 02:50 PM   #6
txz4
Major
txz4's Avatar
59
Rep
1,097
Posts

Drives: 2006 M coupe
Join Date: Oct 2010
Location: san antonio, texas

iTrader: (3)

okay guys, I have a feeling that the problem is my negative battery terminal lead. It looks like their is some mild corrosion preventing me from getting the lead snug. has anyone replaced the lead clamp on their M?
Appreciate 0
      05-19-2012, 05:05 PM   #7
jmillet
Captain
jmillet's Avatar
64
Rep
666
Posts

Drives: 2023 Hyundai IONIQ 6 SEL AWD
Join Date: Aug 2007
Location: Seattle, WA

iTrader: (1)

Garage List
Valve adjustment links:
http://m3forum.net/m3forum/showthread.php?t=113415
http://www.bmpdesign.com/technical/e46_valve_adj_p1.php



Quote:
Originally Posted by txz4 View Post
Thanks man! speaking of help, do you have that link to the parts i need to order for the valve adjustment?

SNIP
__________________
Jim Millet
2023 Hyundai IONIQ 6 SEL AWD Ultimate Red
SOLD: 2007 BMW Z4 M Coupe Imola Red

Appreciate 0
      05-19-2012, 06:52 PM   #8
WestCDA
Second Lieutenant
Canada
7
Rep
273
Posts

Drives: 2006 Z4R 3.0si
Join Date: May 2011
Location: Calgary, Alberta

iTrader: (0)

It doesn't sound like a bad battery. The fact that the lights 'fade out' and then eventually the car starts means there is enough amperage in the battery to crank the starter - which is way more than enough to power the lights and other low amperage draws.

Sound exactly like a poor electrical connection. If you have corrosion on the terminals, clean or replace them.
Appreciate 0
      05-20-2012, 10:50 AM   #9
txz4
Major
txz4's Avatar
59
Rep
1,097
Posts

Drives: 2006 M coupe
Join Date: Oct 2010
Location: san antonio, texas

iTrader: (3)

^makes the most sense, at this point i think your right.


Thanks for the link!
Appreciate 0
      05-20-2012, 12:42 PM   #10
txz4
Major
txz4's Avatar
59
Rep
1,097
Posts

Drives: 2006 M coupe
Join Date: Oct 2010
Location: san antonio, texas

iTrader: (3)

If anyone is interested, the part numbers for the negative terminal cable and the nut that holds it are:

negative cable:61127837229
Flange Nut:07143413174
Appreciate 0
Post Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 05:26 AM.




zpost
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST