325 e46 gearbox kaput?

[faizbizandry]

A solenoid valve is an electromechanical valve for use with liquid or gas. The valve is controlled by an electric current through a solenoid coil. Solenoid valves may have two or more ports: in the case of a two-port valve the flow is switched on or off; in the case of a three-port valve, the outflow is switched between the two outlet ports. Multiple solenoid valves can be placed together on a manifold.
Solenoid valves are the most frequently used control elements in fluidics. Their tasks are to shut off, release, dose, distribute or mix fluids. They are found in many application areas. Solenoids offer fast and safe switching, high reliability, long service life, good medium compatibility of the materials used, low control power and compact design.
Besides the plunger-type actuator which is used most frequently, pivoted-armature actuators and rocker actuators are also used.
source - wikipidea

These solenoids are located inside your gearbox on the valve body(brains of the gearbox) and its visible once the gearbox sump & filter removed.

Wow..thanks!!now I know especially the last part..thanks again for the useful info really appreciate it

 

[jarance]

No bro..not yet..I will change the atf fluid and filter..if fails, might need to look for a new set of gb..koyak

If you are planning to change the ATF and filter, check the solenoids as well. I think the solenoid cost about RM180 per piece. If budget is a constraint, there are some people who clean the fine mesh of the solenoid. However, if the coil is faulty, then you have to change it.

Since you have "play" with the air filter, check whether you have install it back properly. A improper installation of the air filter will cause dirty air to get in the system and contaminate the MAF reading.

How long have you have your air filter? How did you clean it? Is there any holes or broken rubber at the side?
Even though air filter is a relatively simple thing, it might cause some problem to the performance of the car.
BTW, what type of filter is yours? standard or aftermarket like K&N?

You can try to clean the MAF as it a simple job to do to eliminate the probable cause.

Sometime changing spark plug and ignition coil would also help.

The reason for the above is simple. Overhaul or changing the GB is the last resort because it will cost you a lot of money.

 

[Alex5522]

Any diff btw standard filter or aftermarket like K&N filter bro ?

Thanks

 

[jarance]

Any diff btw standard filter or aftermarket like K&N filter bro ?

Thanks

some K&N filter cleaning procedure involve using "oiling". Re-usable.

Standard filter are micro fiber dry type filter. Used and throw.

 

[faizbizandry]

If you are planning to change the ATF and filter, check the solenoids as well. I think the solenoid cost about RM180 per piece. If budget is a constraint, there are some people who clean the fine mesh of the solenoid. However, if the coil is faulty, then you have to change it.

Since you have "play" with the air filter, check whether you have install it back properly. A improper installation of the air filter will cause dirty air to get in the system and contaminate the MAF reading.

How long have you have your air filter? How did you clean it? Is there any holes or broken rubber at the side?
Even though air filter is a relatively simple thing, it might cause some problem to the performance of the car.
BTW, what type of filter is yours? standard or aftermarket like K&N?

You can try to clean the MAF as it a simple job to do to eliminate the probable cause.

Sometime changing spark plug and ignition coil would also help.

The reason for the above is simple. Overhaul or changing the GB is the last resort because it will cost you a lot of money.

Thanks Jarance..btw, am using stock filter..not aftermarket..I will change the filter n the fluid and will change the solenoid as well..thanks for the useful tips appreciate it

 

[jarance]

Thanks Jarance..btw, am using stock filter..not aftermarket..I will change the filter n the fluid and will change the solenoid as well..thanks for the useful tips appreciate it

I say check, not change the solenoid. :sleep:

 

[perryyip73]

GAGGAGA uh la la , gaga uh lala. nothing to do, kaciao abit.

 

[faizbizandry]

I say check, not change the solenoid. :sleep:

Lol..ok ok..will do that

 

[Alex5522]

some K&N filter cleaning procedure involve using "oiling". Re-usable.

Standard filter are micro fiber dry type filter. Used and throw.

Bro mine was K&N filter which was follow the car when i bought it, can u pls tell me where to buy the oiling to clean the filter ?

Thanks

 

[jarance]

Bro mine was K&N filter which was follow the car when i bought it, can u pls tell me where to buy the oiling to clean the filter ?

Thanks

Alex, sorry dont use them so cant advise. beside I know nut about K&N other than what I read on the www. :sleep:

maybe some other people can advise and share.

 

[JKP]

Any diff btw standard filter or aftermarket like K&N filter bro ?

Thanks

Air filter

PERFORMANCE AIR FILTERS FOR YOUR BMW

way to give a little bit more air to the Bmw E34 engine is to change the air filter to a less restrictive one like K&N or by removing the filter box and replacing it with a cool air induction filter (more expensive).

Pros: If you have a sport exhaust, the sound will be deeper. Maybe a little increase of acceleration. It is the last time that you'll buy an air filter (if you clean and oil it).

Cons: I must warn you that some people think that the K&N type filters do not filter the air as good as the stock filter and might harm your engine.
Cold air intakes non insulated are getting the warm air of the engine. This will LOWER your HP.

Rob Levinson from UUC Motorwerks says that "it is really doing every E34 owner a disservice for three reasons:
• First, conclusive tests from independent labs show that K&N filters, no matter how well-oiled and cleaned, let through huge amounts of large particulate that damages engines. Oil analysis shows 5x as much silicate contamination. Additionally, the oil from these filters tends to muck up the MAF and cause an engine-damaging lean-run condition.
• Second, an open element filter like that sucks in hot underhood air and subjects the filter to "fan wash", the swirl that creates a vacuum effect. On the E36 M3, we measure a 15hp loss from open cone filters.
• Third, the E34 airbox is designed with an integral velocity-stack style venturi at the opening. Running one of these engines on a dyno, you can cause a 5hp drop just from putting your finger on the stack lip. Removing that airbox undoes a lot of good BMW engineering. Yes, these filters make a "really cool" noise... but noise does not equal power. Stick with a stock paper element in the factory airbox, you're not getting any more power with a K&N garbage-filter, just damaging your motor."

Jim Conforti (AKA the Land Shark) did some testing:
This was a scientific test, not one done by filter manufacturer X to show that their filters are better than manufacturer Y. The test results are pretty irrefutable as the test lab tests and designs filters where "screw ups" are absolutely NOT allowable (I can't say any more for security. Think "Glow in the Dark").

A scientific test was done on TEST filters where air was loaded with ACCTD (some standardized "test dust" called AC Coarse Test Dust) and sucked through the TEST filter then through an analysis membrane. From the Quantity of dust injected and the amount that gets through the TEST filter and is then captured on the analysis membrane we can calculate the efficiency of the TEST filter in Question.

BMW Stock Filter, Eff. Area of Media: 8.4 sq ft.
K&N Replacement, Eff. Area of Media: 1.6 sq ft.

The filters are the SAME size. They both fit in the STOCK BMW M3 airbox. The difference is that the STOCK filter has 65 pleats 1.5" deep and the K&N only 29 pleats each 0.75" deep.
Now, remember this ratio: " 5.25:1". It's the ratio of the AREA of STOCK to K&N. It's very important and will come into play later.

The STOCK filter efficiency started at 93.4% at 0 loading and increased to 99.2% efficiency as the loading increased to a max tested of 38.8 gm/sq ft of dust.

The K&N filter efficiency started at 85.2% at 0 loading and increased to 98.1% at the max tested loading of 41.38 gm/sq ft.

Now, I hear you. "Jim, that's only a FEW PERCENT". But is it?

Let's look. If we had 100 grams of dust on a new BMW filter we would let through a total of 6.6 grams of dust in. If we used the new K&N filter we get 14.8 grams of dust. That's 224% (TWO HUNDRED TWENTY FOUR PERCENT!!) more dust ingested initially, stock vs. "free flow" and this ratio is pretty much held. Somewhere between 200-300% more dirt gets "ingested" anywhere across loading equivalence. The more INTERESTING thing is when you look at what happens to the DP or Differential Pressure at a constant airflow as you dirty both filters equally with time.

The test used a rate of 75gr of dust per 20 min. Here's where the AREA difference comes MAJORLY into play. See, even though the BMW filter flows a bit less at the SAME loading, it also LOADS UP 5.25 times SLOWER due to it's LARGER effective area. So what happens is that the K&N initially flows better, but as the dirt continues coming in, the K&N eventually flows WORSE while still letting MORE dirt in.

Now, does any of this additional dirt cause problems? I dunno. I suppose we could have a few people do some independent oil analyses on different motors using both K&Ns and Stock filters. Get enough of them, and you'd have a good statistical basis. For me though, it's simple: More DIRT = BAD.

The additional short-term airflow might make sense on a track car. IMHO, it doesn't for the street.

-- Jim Conforti

K&N Response:

It is incorrect. The difference between 99.2% and 98.1% (his results) is 1.1% not 224% as he states!!! (bmwE34.net: who didn't go to school, Jim was measuring the amount of dust that goes inside the engine). Furthermore, does he realize that 96% meets OEM standards? K&N has been around for over 30 years and we sell over 2,000,000 units a year. If there were any sort of problem, one would think we would know by now and so would everyone else. One Internet "expert's" opinion is not reason for concern and should be taken loosely at best.

That information is 100% untrue. Don't believe all you read on the Net. Most is opinions not based on any sort of factual evidence. Our filters are tested by an outside, independent laboratory. They have been proven to stop at least 99% of particles on a SAE dust test. This test uses particles as low as the 0 - 5 micron range and goes up to 20 microns.
For comparison, a paper filter also stops 99% on the same test and the OEM minimum standard is 96%. Foam is generally the worst media with a typical efficiency rating of 75 - 85%. To get higher ratings, the foam must be more dense and therefore way more restrictive. The "tack" characteristic of a K&N allows for increase filtration without loss of flow as well. The testing procedure used is SAE J-726 using ISO Test Dust.
This test is the standard of the air filter industry. The test procedure consists of flowing air through the filter at a constant rate (airflow rate is determined by the application) while feeding test dust into the air stream at a rate of 1 gram per cubic meter of air.
As the filter loads with dust the pressure drop across the
filter is increased to maintain the prescribed airflow rate. The test is continued until the pressure drop increases 10" H2O above the initial restriction of the clean element (in this case .78" to 10.78" H2O). At this point the test is terminated. The dirty filter element is then weighed. This weight is compared to the clean element weight to determine the total Dust
Capacity. The amount of dust retained by the filter is divided by the total amount of dust fed during the test to determine the Cumulative Efficiency.

The K&N filter achieved the following results:
- Dust Capacity: 305grams
- K&N Cumulative Efficiency: 99.05 %

Holding the filter to the light is useless, pin holes are normal.
That is what makes a K&N filter. There are actually hundreds of microscopic fibers that cross these holes and when treated with oil, capture and hold the very fine particles. On the same hand, they allow the filter to flow more air than paper or foam. The filter is 4 ply cotton gauze unlike some competitors synthetic material filters. The synthetics do not
have the very small fibers that natural cotton does. Also, the oil can be pulled off of a foam filter contaminating electronic sensors. It will absorb into cotton and stay in the media. In fact, Honda and Toyota only recommend K&N filters when using aftermarket high flow filters as K&N is the only brand of filter the oil does NOT come off of. They will not cover a failed sensor if foam filters were used.
We got started over 30 years ago making filters for motorcycles and off road racers. The filters did so well that these guys wanted them for their cars and trucks. We started making filters for these applications and here we are today. If they did not work, we would not still be here and growing every year.
We now make filters for Chrysler/Mopar, Ford Motorsports, Edelbrock, Rotax Engines, and Harley Davidson. We come as original equipment on the 2000 Ford Mustang Cobra-R. We even made filters for the Apache helicopters used in Desert Storm because of maintenance problems with the original paper design. If they work in these conditions they will work for you.

Rick from knfilters.com (Information emailed by Martin)

Procedure
Clean any dust or debris out of the air box with a damp cloth.
When installing an air filter, check all gaskets, clamps and seams for damage and/or deterioration. Check the filter's sealing surface. Do not install a filter if the seal shows signs of damage or deterioration. Check for cracks in the air box, particularly at the seams and around the corners. Such defects could cause air leakage around the filter. Also, check to insure the filter is sealing properly in the air box.

Cleaning instructions
I run the K&N filter and I am ok with it. I did noticed a cleaner acceleration. My engine had 205 000km.
This page is for information only, do what you think is best for your car and your needs.
SOURCE BMW E34.net

 

[solo]

Bro mine was K&N filter which was follow the car when i bought it, can u pls tell me where to buy the oiling to clean the filter ?

Thanks

The filter is cleaned using the Recharger Filter Care Service Kit.

Look for it at any K&N dealer below. It's RM60-70

A SPEEDWORKS (M) SDN BHD LOT 2 LORONG 227B, SECTION 51A, 46100 PETALING, JAYA 46100 Malaysia 603 7955 5533
Email
A. SPEEDWORKS WISMA WAH GIAP, 301 JALAN PERAK, GEORGETOWN PENANG 10150 Malaysia 604-281 6098
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A.. SPEEDWORKS 9 JALAN ROS MERAH 1/1, TAMAN JOHOR JAYA, JOHOR BAHRU 81100 Malaysia 607-357 9770
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ADVAN RACING 356 JALAN LIMBOK, SEREMBAN Malaysia 606-763 9920
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AUTO RESOURCES HOLDING 61 JALAN SUNGEI BESI, KUALA LAMPUR 57100 Malaysia 603-92211615
C.K. EXHAUST F1-G9 JALAN MURNI 2, TAMAN MALIM JAYA, MALACCA Malaysia 606-334 2292
CHEAR PERFORMANCE PARTS SDN.BHD. #27, JALAN LANDASSAN, OFF JALAN BUKIT KUDA, KLANG,SELANGOR DE 41300 Malaysia 60-12-3293559
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Fax 60-3-33445431
CITY CAR ACCESSORIES 66 GROUND FLOOR, JLN 1/76D, DESA PANDAN, KUALA LAMPUR 55100 Malaysia 603-92002490
ENEOS CAR CENTER LOT LG14 JUSCO BANDAR UTAMA, 1 LEBUH BANDAR UTAMA, BANDAR UTAMA DAMANSARA Malaysia 603-7726 2777
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ENEOS CAR CENTRE G17 JUSCO METRO PRIMA, 1 JALAN METRO PRIMA, KEPONG Malaysia 603-6250 8831
G-POWER LOT 10 GROUND FLOOR, PENAMPANG INDUSTRIAL, PENAMPANG BARU, KOTA KINABALU, SABAH Malaysia 6088-719049
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HING LOONG AIR COND & ACCYS AUDIO CENTRE CAWANGAN MCA SG. CHUA, NO. 804, JALAN SG. CHUA, KAJANG, SELANGOR 43000 Malaysia 603-87363961
HING LOONG AIR COND. & ACCY AUDIO CENTRE LOT 18 & 19, TINGKAT BAWAH, BANDAR INDERAPURA, JALAB INDERAPURA 1, JERANTUT, PAHANG 27000 Malaysia 6013-2020778
HING LOONG AIR-COND & ACCY AUDIO CENTRE NO 163, KAMPUNG BARU, BATU 9 CHERAS, CHERAS, SELANGOR 43200 Malaysia 603-90762932
HOKOMOTO LOT 1, JALAN INDUSTRI, BATU CAVES 1/4, BATU CAVES Malaysia 6186 6670
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KAITOSPEED PERFORMANCE AUTOPARTS 329, JLN SAGA 2, TMN KOTA KULAI, KULAI, JOHOR 81000 Malaysia 0167442406
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Website
KAKIMOTOR 18 & 20 JLN PJS 9/2, 46150 BANDAR SUNWAY, SELANGOR Malaysia 603-56367762
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Fax 603-56352137
KAKIMOTOR NO. 49 JALAN PJS 11/7, BANDAR SUNWAY, SELANGOR 46150 Malaysia 603-56357762
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KAKIMOTOR SDN BHD. NO. 142 JALAN JEJAKA, TAMAN MALURI, CHERAS, KUALA LUMPUR 55100 Malaysia 6012-6877121
KAKIMOTOR SDN BHD. NO. 24, JALAN GIGIH 25/41, TAMAN SRI MUDA, SECTION 25, SHAH ALAM SELANGOR 40400 Malaysia 6012-6877121
KATO AUTOMART (M) SDN. BHD. NO. 28, 30 & 32, JALAN UTAMA 2/16, TAMAN PERINDUSTRIAN PUCHONG UTAMA, PUCHONG SELANGOR 47100 Malaysia 6016-6622400
LOH MOTOR 924 LORONG 8, JALAN CHONG KIUN KONG, KENYALANG PARK, KUCHING, SARAWAK Malaysia 6082-423353
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MAKMUR PAKAR EKZOS B-1564, JALAN BESERAH, KUANTAN, PAHANG 25300 Malaysia 60 09-5664030
MULTI INDUSTRY 87 JLN 20/7, PARAMOUNT GARDEN, PETALING JAYA, SELANGOR Malaysia 603-78741959
NS PERFORMANCE SDN BHD (Installer) NO 1 JALAN PENERBIT U1/43, 40150 SHAH ALAM, SHAH ALAM, SELANGOR 4150 Malaysia +603 55691434
OU AUTO 103-B JLN FAIR PARK, IPOK, PERAK 31400 Malaysia 605-5465960
PERFORMANCE AUTO SUPPLIES 35 & 37 JALAN BATU NILAM 4, BANDAR BUKIT TINGGI, KLANG Malaysia 605-3323 2319
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PUSAT KERETA OU 2 & 2A PERSIARAN SILIBIN UTARA, JLN JELAPANG, IPOH, PERAK 30020 Malaysia 605-5268278
RACING FIT MOTORSPORTS 33 JALAN PJS 11/7, BANDAR SUNWAY, PETALING JAYA 46150 Malaysia 603-5636 9063
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REDLINE MOTORSPORTS NO. 8 JALAN AWAN HIJAU OUG, KUALA LAMPUR 58200 Malaysia 603-79814923
REV ENTERPRISE NO. 66 TMN PERINDUSTRIAN RINGAN KRISTAL, JLN KRISTAL 4, ALOR SETAR, KEDAH 05150 Malaysia 604-7349041
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STEADY CAR CUSHION & AUTO ACCESSORIES NO. 8 & 10, JALAN 2/23A, TAMAN DANAU, KOTA, OFF JALAN GENTING KELANG, KUALA LAMPUR 53300 Malaysia 603-41439698
TY TRADING 26 & 27 MEDAN JAYA COMMERCIAL CENTRE, JLN BINTULU, MIRI BINTULU 97008 Malaysia 6086-312188
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YEW EXHAUST NO. 6 JALAN WARDEN U1/76, TAMAN PERINDUSTRIAN RINGAN, BATU 3, SHAH ALAM SELANGOR 40150 Malaysia 603-55181011

 

[Alex5522]

Thank you so much bro Solo.
By the way do u know how long of this filter can last.
TQ

 

[solo]

Thank you so much bro Solo.
By the way do u know how long of this filter can last.
TQ

Almost forever if you take care of it and don't let it tear. Or until you get enough money and the itch to go over to the dark side and get a Cold-Air Intake.

Salut