Air filter fit side

[Annddrriy]

Any one know about air filter to place it in right ? I bought new air filter to replace it old one and saw arrow on one side of new filter I am not sure witch side it go by arrow to front bumper or to rear ? Thanks!

[unity]

Kidding, right?

[Cactuar]

The arrow shows the direction of the air flow. The blower in your car is located in the cowl area near the windshield wipers. It brings air inside the cabin from the front, so the arrow needs to point to the rear of the car.

Hi from Canada

[unity]

Thats not a pic of an engine filter? Looks like the same filter my M70 uses.

[Cactuar]

Wait you're right ... I didn't know the engine air filter had an arrow, as the direction is very obvious because of the seal. I automatically thought of the cabin air filter.

OP please get a Bentley manual

[Annddrriy]

Thanks a lot I would't find out that. I place it wrong side arrow to front that is mean air coming slowly not properly.Thanks!
some filters don't have arrow like after market filters or some other one
That filter was a brand mann filter of the engine

[shogun]

there is only 1 way = the correct, the filter fits into the airbox http://bmwe32.masscom.net/sean750/MA...testingMaf.jpg

Please add the details of your E32 to your profile, this is not enough

My Cars: E32 1990

735i/L, 750i/L, 730 M60B30 730 i/L?

[Annddrriy]

02/90 735i E32 M30B35. I bough air filter brand MAHLE one side has small arrow.I place it arrow to the rear of car.

[Annddrriy]

Any idea why is engine oil pressure light off I checked cluster bulb is ok also checked wire from sensor to cluster is ok too but did not check from sensor to engine ecu? Is any possibility engine ECU problem ? Thanks!

[Annddrriy]

Engine oil pressure light was off. Changed oil pressure sensor than light is on now.

[shogun]

That means all is o.k. now? Oil pressure light goes off when the engine is running? Or does it stay on for some seconds first when you start the engine? If so, the check valve could be broken http://www.bmwe34.net/E34main/Trouble/OilCanister.htm

[Annddrriy]

Yes now is ok. Removed oil filter housing and cleaned valve was dirty than checked for leak. And changed oil pressure sensor. Started engine light goes off after around 3 second no more oil press sensor on cluster.Thanks! Do you know what alternator AMP BMW E32 735i 02/1990 when I look at parts online it shows me two one is 140AMP and another 115AMP ? Thanks!

[shogun]

for the 735 standard was 115A, when there were more options ordered like the old phone etc, then the 140A alternator was installed ex factory. You would have to check on the alternator sticker to make sure. Normally 115A is enough.
The 750 has the 140A alternator as more electric gimmicks installed like electric rear seats etc pp

[Annddrriy]

Do you know something about step motor from flaps I have one outside of my another car and I tried to put 9 volts battery to operate this step motor It has 6 small pin terminals but it moves just a bit without spin ? I disconnect those two steps motor very top flaps and it moves over somehow damage step motor housing ? Now I open those flaps manually in summer and closed in winter. Maybe any idea how to operate those flaps by another bypass switch.Thanks!

[shogun]

Maybe the brackets are broken , some pics
http://www.bimmerboard.com/forums/posts/200205/
http://www.bimmerboard.com/forums/posts/1074058/

The stepper motors just move a little bit, they do not rotate!

There are ten stepper motors in the system. These are all the same motors, but two have a different connection part (mixing flaps). The motors control the flaps for:

•1. Passengerside footwell flap
•2. Passengerside dash vent flap
•3. Passengerside temperature mixing flap
•4. Driverside footwell flap
•5. Driverside dash vent
•6. Driverside temperature mixing flap
•7. Outside air flaps
•8. Recirculation mode flap
•9. Demister vents flap
•10. Rearpassengers freshair flap

http://bmwe32.masscom.net/johan/ihka/ihka.html

[Annddrriy]

Yes that exactly what happened with brackets are broken by step motor went over limit. Is that mean step motor are not good ?

[shogun]

The motors are o.k., only the brackets broke, you have to fix the stepper motors somehow. Most people use a bracket, some use 2K putty etc, I use some zip ties to fix the motor in position, works since years. The clips of the housing of the IHKA became too weak and the motor always slipped out of position.
more pics, scroll down here http://www.e32-schrauber.de/bmw/s-ihka.htm
bracket http://www.e32-schrauber.de/bmw/daten/ihka/rimg0243.jpg
glue/putty http://www.e32-schrauber.de/bmw/daten/ihka/rimg0242.jpg

[Annddrriy]

I have another problem with front defogger I checked grill is good and auxiliary pump not working too still don't know why not working any idea ? When I turn on front window defogger the auxiliary pump and grill witch is on the bottom of the windshield have to work ?

[shogun]

you mean the front window? There is only the small heater for the wiper rest position. I have only a German language info for that, see page 35, item 5.7 Frontscheibenheizung. Copy this and use google translate:
der untere Teil der Frontscheibe im Bereich der scheibenwischerblaetter wird elektrisch beheizt, um ein festfrieren der Wischerblaetter zu vermeiden. die beheizung wird eingeschaltet bei Temperaturen von unter 5 Grad Celsius und ausgeschaltet bei ueber 8 Grad Celsius. Die ansteuerung uebernimmt automatisch das Klimasteuergeraet ueber den Aussentemperaturfuehler der Klimaautomatik. Die Ansteuerung der Frontscheibenheizung erfolgt ueber ein Relais im Stromverteiler. Ansteuerung des Relais vom Steuergeraet ist masseseitig Stecker weiss, Pin 24, Kabel BL/BR. Die Frontscheibenheizung wird nicht getacktet.


Auxiliary heater pump is not related to windscreen heating, that is for interior heating, see section 5.8 Zusatzwasserpumpensteuerung http://www.e38.org/e32/klimaautomatik.pdf
The aux pump comes only on when the heater is on and the coolant has a minium temperature of 30 degree Celsius, it then pumps 950 l/h constantly, independent from the engine RPM thru the heater core.
Purpose: an electric operated auxiliary water pump is installed to maintain the necessary heating water throughput at low engine speeds.

The aux pump is switched on when the outlet temperature on one heat exchanger has exceeded the value of 30 degree celsius after a new start and the control variable Yl OR Yr is above 30%. The water pump is connected when the nominal value potentiometer on the driver's side is set to the end position. The aux water pump is switched off when the control variables Yl AND Yr drop below the value of 25%.

In case the windshield defoger function does not work, then you have a problem with the flaps not moving , see my above posted links. One more link http://bmwe32.masscom.net/johan/ihka/ihka.html
and another one for the flaps http://www.bimmernut.com/forum/showt...ghlight=heater

PLEASE use in future the button reply to thread, NOT reply with quote! I deleted all unnecessary quotes now for easier reading the thread.

[Annddrriy]

Yes for front window and when is snow siting on wiper rest position have to melt when grill working but snow not melt. Ok thanks.I noticed one think when I changed heater core last time and put it coolant in a system than turn ignition on than I heard aux pump start working. When aux pump have to work ? That time when I turn front window defrost ?

[shogun]

The aux pump is not working based on the direction setting of the IHKA setting, does not matter if only window, only feet, automatic or whatever.
The aux pump is switched on when the outlet temperature on one heat exchanger has exceeded the value of 30 degree celsius after a new start and the control variable Yl OR Yr is above 30%. The water pump is connected when the nominal value potentiometer on the driver's side is set to the end position. The aux water pump is switched off when the control variables Yl AND Yr drop below the value of 25%.

window heat element:
The lower part of the windshield in the area of ​​the windscreen wiper blades is electrically heated to prevent the wiper blades from freezing onto the windshield. Heating is switched on at temperatures below 5 degrees Celsius and switched off at over 8 degrees Celsius. The control of this is done automatically by the climate control unit via the outside temperature sensor of the automatic climate control system. The control of the windscreen heating takes place via a relay in the power distributor. Control of the relay from the control unit is on the ground side white plug, pin 24, cable BLUE / BROWN. The windscreen heater is not working in cycles.

See the diagrams in this link , section 5.7 and 5.8 http://www.e38.org/e32/klimaautomatik.pdf

[Annddrriy]

In case the windshield defoger function does not work, then I have a problem with the flaps not moving but I removed out on both side step motors to not damaged more brackets and closed flaps manually locked for winter time.If outside temperature sensor not working properly than no signal to IHKA and from IHKA to Relay and from relay to front windshield bottom grill? I found in owners manual electric diagram front window defogger (GRID NOT PRESENT IN 1990-91) ?Thanks!

[shogun]

If outside temperature sensor not working properly than no signal to IHKA and from IHKA to Relay and from relay to front windshield bottom grill? >>>>yes = not working.
....closed flaps manually locked for winter time>>>>good idea, keep it for winter like that

[Annddrriy]

Do you know how much volt goes to windshield bottom grill ? I might check relay probably bad ?

[shogun]

I assume it is 12V, see here the wiring diagram page 6450-24 http://shark.armchair.mb.ca/~dave/BMW/e32/e32_90.pdf