Thermostat A Lil Above Half - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 04-15-2005, 01:23 AM
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Is it normal for my thermostat temp gauge thingy to read like a TINY TINY bit over half, like it's just a LITTLE tiny bit, and it has been hot outside?

if it's a problem, what do you think it could be

ALSO ive noticed lag in my car, and my idle has been jumping along with my rpm's dipping
i guess it's time for a new o2 sensor

and I drive a 1994 325is

CAN someone show me a Pic of the idle control valve, i'd like to clean it


thx
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#2 (permalink) Old 04-15-2005, 06:53 AM
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When looking directly at the temp gauge..........

Close both eyes........
Open your right
Close your right
Open your left
Close your left

Repeat til you realize that your eye is playing tricks on you, and either your temp is a tiny bit too low, or a tiny bit too high

:P

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#3 (permalink) Old 04-15-2005, 07:03 AM
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mine has always been a tiny bit too high.

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#4 (permalink) Old 04-15-2005, 08:11 AM
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It's like that because of your point of view. I have noticed that when in the driver seat looking at the gauge it only looks as if it is a tick above middle. Move your head over to the right and look directly at the gauge straight on- the needle is now in the middle..

Complete mod list and pics:

My 1993 325i
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#5 (permalink) Old 04-15-2005, 12:22 PM
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no i did that,. it's a tiny bit over the end

And someone have a pic for my icv on a 1994 325is?
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#6 (permalink) Old 04-15-2005, 12:25 PM
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icv is located below the intake man, loook for my M3 engine swap thread, theres a pic of it there somewhere.

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#7 (permalink) Old 04-15-2005, 12:46 PM
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My manual said it is perfectly normal for it to reach as high as the beginning of the red part and be OK. This would only happen if it was really hot though. Like air on, sitting in traffic.

I've seen mine vary a touch high or low depending on how I was driving.

Greg

97 328iS, Manual, Stock
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#8 (permalink) Old 04-15-2005, 01:37 PM
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all kidding aside, those gauges aren't the most accurate devices to gauge engine temps. If your seriously concenred then I would consider installing aftermarket gauges to read water temps etc etc.

Im sure your just fine

1996- BMW 328IS
<img src='http://img.photobucket.com/albums/v242/gws226/TEX/neverleanedsig.jpg' border='0' alt='user posted image' />
Performance: Zimmerman Cross Drilled Rotors-- PBR Deluxes-- Cosmos CAI---- Turner Pulley Kit--- Fan Delete mod---
Beauty: 18 polished M-Parallel replicas, Inpro Euros w/ Enchanced Angel eye kit, 20% tint
Clear corners/sidemarkers ---- Eurospec (Depos)

To do list:
Suspension--- researching
UUC System U TDM- 3/05
M50 manifold converstion 3/05
off to the tuning shop for custom software 4/05
Cams/lightened flywheel, throttlebody........ well lets see what happens
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#9 (permalink) Old 04-15-2005, 03:12 PM
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It's normal for the gauge to be like 1-2mm over the middle.

As for that comment that the manual states that it's okay for the gauge to be near red, that's bullshit... your risking to ruin your head gasket and the head itself running that hot.

The head is quite a fragile thing on M50 engines... well... actually all BMW inline six engines suffer that.

As for the gauges on the factory combi device... they are total bullshit... the water temp gauge's needle starts moving when the temperature is like 15C over normal...

I'm planning on installing aftermarket gauges for water temp, oil temp(motor, gearbox, rear diff, controller by a switch), oil pressure, vacuum and a voltmeter.

<img src='http://meph.pri.ee/~meph/sig.jpg' border='0' alt='user posted image' />
<span style='font-family:Arial'><span style='font-size:8pt;line-height:100%'><span style='color:green'><a href='http://www.clubarena.com/~bmwklubi/gallery/album32' target='_blank'>My car</a></span></span></span>
(Started as a 316... not anymore)
Custom leather interior, custom audio install, custom made bumpers, clear side and corner markers.
Custom exhaust, CAI (also custom =) )
M50B25 transplant, 325 brake system, brembo rotors, ferodo pads.

Coming:
Coilover kit, 17'' rims, lots of gauges and a few surprises.
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#10 (permalink) Old 04-15-2005, 04:50 PM
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Meph what else in my manual is bullshit?

Greg

97 328iS, Manual, Stock
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#11 (permalink) Old 04-15-2005, 06:41 PM
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Mine was going way over the center and into the red...I got the thermostat replaced and now its steady on the center position.
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#12 (permalink) Old 04-15-2005, 07:36 PM
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doesnt the thermostat affect how fast the fan spins?

if so how much is it to replace that sensor for it?
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#13 (permalink) Old 04-15-2005, 08:12 PM
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Just so you guys know... the temp gauge in factory displays are run on descret signals from the sensor... there is nothing digital about them... its run on steps... not exactly a smooth power or display of the actual temperature. I have a read out of exactly what the gauge will display with what imputs... but its in a binder at my house... and I'm about 6500 miles from that at the moment.

Digital is were its at though...

Les


1997 E36 M3 1990 E30 325i
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#14 (permalink) Old 04-15-2005, 08:38 PM
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stealer mechanic told me to just use the gauge as a reference point. It should almost always be at the at the same place when you drive unless its super hot-sitting in traffic kinda hot. If the needle starts to inch its way up from what is normal for you and its not super hot outside then something is going on that you or a shop needs to look at.

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