Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E46 (1999 - 2006)

E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

Reply
 
Thread Tools Display Modes
  #1  
Old 01-24-2013, 04:54 AM
1972ford's Avatar
1972ford 1972ford is online now
Function over fashion
Location: NH
 
Join Date: Jun 2009
Posts: 802
Mein Auto: 325xiT
E46 vs E83 cold start. And the winner is...

At about -10 degrees this morning, my wife's x3 had a rough time starting this morning, she cranked it for 5-10 seconds 3 times before it finally fired! Slllooowww cranks, too, and the battery was new in June. My trusty wagon fired right up like it was 65 degrees. Except that it didn't reach normal operating temp for over 20 min. But I am NOT impressed with the cold starting performance of the x3!
__________________
Reply With Quote
Advertisement
  #2  
Old 01-24-2013, 05:12 AM
jdauria jdauria is offline
Officially Welcomed to the 'Fest
Location: Arlington, VA / NY
 
Join Date: Oct 2012
Posts: 769
Mein Auto: E39 ///M5
Quote:
Originally Posted by 1972ford View Post
At about -10 degrees this morning, my wife's x3 had a rough time starting this morning, she cranked it for 5-10 seconds 3 times before it finally fired! Slllooowww cranks, too, and the battery was new in June. My trusty wagon fired right up like it was 65 degrees. Except that it didn't reach normal operating temp for over 20 min. But I am NOT impressed with the cold starting performance of the x3!
I have both as well, X3 i guess are prone to cold weather startup issues. I read a lot of threads on people having a real hard time. It was snowing this morning in VA, about 2 inches or so on the cars, decided to take the X3 to work today for AWD purposes. I usually leave the key in position 2 for a couple seconds to let the fuel lines open up before crank. Have you tried that?

I haven't had any issues with cold starts, granted its not -10*F like you
__________________
2000 ///M5 ///M Registry (09/99 Build)
Oxford Green Metallic II (430) | Caramel Nappa Leather (M3CR) | Brushed Aluminum "Stahlgrau"|
Square Style 65's - Pilot Super Sports
Tuning Tech Tune by Frank Smith (http://www.tuningtechfs.com/)
Tuning Tech IAT Kit
Supersprint Headers
SuperSprint X-Pipe
Eisenmann Race 4x83mm
DINAN Front Strut Brace
Storm Motorwerks Products

2006 X3 3.0i M-Sport | Silver Grey | Terracotta | AT | Navigation | Premium Pkg | Cold Weather Pkg | AFE |
Reply With Quote
  #3  
Old 01-24-2013, 06:04 AM
Brobby87's Avatar
Brobby87 Brobby87 is offline
The Arch Bishop
Location: Minneapolis, MN
 
Join Date: Nov 2011
Posts: 169
Mein Auto: 2003 325i, 1986 535i
Quote:
Originally Posted by jdauria View Post
I have both as well, X3 i guess are prone to cold weather startup issues. I read a lot of threads on people having a real hard time. It was snowing this morning in VA, about 2 inches or so on the cars, decided to take the X3 to work today for AWD purposes. I usually leave the key in position 2 for a couple seconds to let the fuel lines open up before crank. Have you tried that?

I haven't had any issues with cold starts, granted its not -10*F like you
I do this every time and we've had subzero temps here in Iowa all week. It fires up every time.
Reply With Quote
  #4  
Old 01-24-2013, 06:25 AM
jdauria jdauria is offline
Officially Welcomed to the 'Fest
Location: Arlington, VA / NY
 
Join Date: Oct 2012
Posts: 769
Mein Auto: E39 ///M5
Quote:
Originally Posted by Brobby87 View Post
I do this every time and we've had subzero temps here in Iowa all week. It fires up every time.
Glad to hear it works. It seems that the X3 fuel lines/pump/regulator or something isn't so robust. It needs time to prime.
__________________
2000 ///M5 ///M Registry (09/99 Build)
Oxford Green Metallic II (430) | Caramel Nappa Leather (M3CR) | Brushed Aluminum "Stahlgrau"|
Square Style 65's - Pilot Super Sports
Tuning Tech Tune by Frank Smith (http://www.tuningtechfs.com/)
Tuning Tech IAT Kit
Supersprint Headers
SuperSprint X-Pipe
Eisenmann Race 4x83mm
DINAN Front Strut Brace
Storm Motorwerks Products

2006 X3 3.0i M-Sport | Silver Grey | Terracotta | AT | Navigation | Premium Pkg | Cold Weather Pkg | AFE |
Reply With Quote
  #5  
Old 01-24-2013, 06:43 AM
1972ford's Avatar
1972ford 1972ford is online now
Function over fashion
Location: NH
 
Join Date: Jun 2009
Posts: 802
Mein Auto: 325xiT
We'll try that tomorrow morning. Though it seems like the fuel system should have been primed plenty by the 2 or 3 attempts at starting it before it did finally fire. This car has cranked relatively slowly with ANY cold weather, the cranking speed is directly correlated to the temperature. The e46 might crank a LITTLE slower but nothing like the x3. I've read a few of the cold start issue threads but for one, but as long as it starts I'm not going to get too worried.
__________________
Reply With Quote
  #6  
Old 01-24-2013, 06:56 AM
jdauria jdauria is offline
Officially Welcomed to the 'Fest
Location: Arlington, VA / NY
 
Join Date: Oct 2012
Posts: 769
Mein Auto: E39 ///M5
Check out the E83 section for cold start issues, and possible solutions.
__________________
2000 ///M5 ///M Registry (09/99 Build)
Oxford Green Metallic II (430) | Caramel Nappa Leather (M3CR) | Brushed Aluminum "Stahlgrau"|
Square Style 65's - Pilot Super Sports
Tuning Tech Tune by Frank Smith (http://www.tuningtechfs.com/)
Tuning Tech IAT Kit
Supersprint Headers
SuperSprint X-Pipe
Eisenmann Race 4x83mm
DINAN Front Strut Brace
Storm Motorwerks Products

2006 X3 3.0i M-Sport | Silver Grey | Terracotta | AT | Navigation | Premium Pkg | Cold Weather Pkg | AFE |
Reply With Quote
  #7  
Old 01-24-2013, 11:05 AM
Fast Bob's Avatar
Fast Bob Fast Bob is offline
Keeping it surreal
Location: Here, there, everywhere....
 
Join Date: Jun 2004
Posts: 34,803
Mein Auto: 2004 330Ci ZHP 3 pedals
In extremely cold weather, having a (heated) "battery blanket" and a heated oil dipstick are about the only thing that will make a real difference.
This is one area where AGM batteries have an advantage.
__________________
The road goes ever onward....
(R.I.P. Jever)

*Please support the Wounded Warrior Project*

When faced with choosing between two evils, always go with the one you`ve never tried before....
Reply With Quote
  #8  
Old 01-25-2013, 06:10 AM
1972ford's Avatar
1972ford 1972ford is online now
Function over fashion
Location: NH
 
Join Date: Jun 2009
Posts: 802
Mein Auto: 325xiT
Quote:
Originally Posted by Fast Bob View Post
In extremely cold weather, having a (heated) "battery blanket" and a heated oil dipstick are about the only thing that will make a real difference.
This is one area where AGM batteries have an advantage.
What do you suppose the difference is between my car and the X3? They're parked next to each other outside. The X3 is an '07, mine's an '01. Is the N52 3.0l engine higher compression and therefore harder to turn over? Or is that a crazy theory? My engine also has 80,000 more miles on it. The X3 maybe has more electrical stuff, but the e46 isn't exactly electrically simple. It also doesn't appear to lack for cranking amps, it just turns slowly.

As far as battery heat, I suppose a trickle charger would also help keep the battery warm. While there isn't an issue with the charge on the battery, it would serve the purpose of keeping it a little warm, right?
__________________
Reply With Quote
  #9  
Old 01-25-2013, 06:21 AM
lgr122 lgr122 is offline
Officially Welcomed to the 'Fest
Location: Finland
 
Join Date: Aug 2012
Posts: 1,289
Mein Auto: BMW e46 1,9l M43
What kind batteries do they have?
Maybe your e46 just have more spare capacity and e83 is designed tighter to the limit?
Generally increasing battery capacity can help any car in cold start, but some kind heating device can be even better.
Reply With Quote
  #10  
Old 01-25-2013, 08:24 AM
Fast Bob's Avatar
Fast Bob Fast Bob is offline
Keeping it surreal
Location: Here, there, everywhere....
 
Join Date: Jun 2004
Posts: 34,803
Mein Auto: 2004 330Ci ZHP 3 pedals
Quote:
Originally Posted by 1972ford View Post
What do you suppose the difference is between my car and the X3? They're parked next to each other outside. The X3 is an '07, mine's an '01. Is the N52 3.0l engine higher compression and therefore harder to turn over? Or is that a crazy theory? My engine also has 80,000 more miles on it. The X3 maybe has more electrical stuff, but the e46 isn't exactly electrically simple. It also doesn't appear to lack for cranking amps, it just turns slowly.

As far as battery heat, I suppose a trickle charger would also help keep the battery warm. While there isn't an issue with the charge on the battery, it would serve the purpose of keeping it a little warm, right?
I would speculate that the X3`s electrical system presents a greater load to the battery, resulting in slower cranking. Keeping the battery warm insures that the electrons inside the battery are flowing freely, providing a quick reaction when you turn the key.
__________________
The road goes ever onward....
(R.I.P. Jever)

*Please support the Wounded Warrior Project*

When faced with choosing between two evils, always go with the one you`ve never tried before....
Reply With Quote
  #11  
Old 01-25-2013, 09:39 PM
lgr122 lgr122 is offline
Officially Welcomed to the 'Fest
Location: Finland
 
Join Date: Aug 2012
Posts: 1,289
Mein Auto: BMW e46 1,9l M43
In Russia I saw one old man who was taking his battery inside his apartment every night and then bringing it back in the morning. Maybe bit extra trouble that way also, but i'm sure he didn't have too big problems about starting his old car.
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E46 (1999 - 2006)
Today's Posts Search
Thread Tools
Display Modes

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 On



Forum Jump


All times are GMT -7. The time now is 04:50 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms