E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > E46 BMW > General E46 Forum

General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 05-30-2011, 04:55 PM   #1
uwantm3
Registered User
 
Join Date: Sep 2010
Location: New Jersey
Posts: 82
My Ride: e46 M3
Temperature Gauge e46 M3?

Hey guys, I've had my car for like 6 months and haven't had to use the AC until this past week. I recharged it myself and had no issues whatsoever for a few days. Now in the past two days I've noticed this recurring problem (...well it happened twice)

When starting the car and turning the AC on high immediately the temperature gauge goes waaaay over to the right, not quite in the red but like at the other little tick mark on the right side. When I turn the air off, the needle will slowly creep back to the dead center and when I turn the air back on..the gauge doesn't move. Its like it's working the engine harder only when I turn it on immediately after starting the car. Think it's a faulty gauge? I have no idea what to look for or where to start. Is this normal? The needle moves right back to the center as soon as the AC is switched off. Once again, when I turn it back on, it doesn't move, really strange. The oil temp gauge has been a little higher than usual lately too, but not much, it moves around.

It's also been 85+ degrees on both occasions this has occured. Anyone have any input? Thanks!
uwantm3 is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 05-30-2011, 05:22 PM   #2
rmodys
Registered User
 
Join Date: May 2010
Location: Florida
Posts: 247
My Ride: 2001 325i
Have you done any upgrades at all to the cooling system? Sometimes the extra strain of the air conditioning being on can cause the engine to overheat a bit.

If you have access to an infrared thermometer, you could always check the temperature at the intake on the radiator to see if it's really fluctuating.
rmodys is offline   Reply With Quote
Old 05-30-2011, 07:34 PM   #3
Blocked Out
Registered User
 
Join Date: Aug 2009
Location: Planet Earth
Posts: 5,489
My Ride: Imola 330i M-Sport
Flush and bleed your cooling system first. If that doesnt help look into checking your water pump and thermostat.
__________________
Original BMW Teile ///



====>>> E46 Coupe Airbags
IMG_1725
Blocked Out is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Censor is ON





All times are GMT -5. The time now is 07:15 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use