Question about 1996 BMW 318

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My clutch pedal has no pressure so i replace the slave cylinder today and i still have no pressure in the clutch pedal. I don't think anything is wrong with my master cylinder, can so one send me the procedures on replacing this part. I have a 1991bmw 318i

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  • Master
  • 2,030 Answers

Well it either is the slave cylnder or you did not properly install and bleed the new slave cylnder.

Goto your local parts store and buy the $15 manual...it will give you detailed instructions that are to complex and long to describe here.

Posted on Feb 02, 2010

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  • Master
  • 677 Answers

You have to bleed the slave.

Posted on Feb 02, 2010

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Hi i just put a new master cylinder a month back now today my clutch felt hard and when i put it in reverse heard a broken sound clutch went flat and oil came from the master what can the problem be


Umm...

A mechanical 'breaking noise' doesn't sound good. It's hard to diagnose a problem online without being there to see/hear the vehicle. But .. it may be that your clutch pressure plate has broken/ release/throwout bearing has broken?

It's difficult to see why the master cylinder should leak - unless it was incorrectly fitted in the first place?

Just to check ... The master cylinder is in the engine bay/compartment and is where you top up with clutch fluid. When a master cylinder fails it usually results in no pressure at the clutch pedal, not a leak.

The clutch slave cylinder is the one that does all the work. When you press the pedal hydraulic pressure is sent from the master cylinder to the slave cylinder - which then pushes the release/throwout bearing against the clutch pressure plate and 'disconnects' the driven plate .. allowing you to change gear.

The slave cylinder is the one that does all the hard work - it is located somewhere where engine and gearbox mate together, usually at the bottom right/left. It's usually the one that fails/leaks. It's quite easy to replace..

I don't think it is anything to do with reverse gear. It's more to do with the clutch pedal being depressed - and, I would suspect - something has failed.

The link below is generic images of a clutch:
clutch diagram Google Search

Basically, a clutch is 3 parts. There's the 'pressure plate' which bolts onto your flywheel. The pressure plate is a 'spring'. You depress the clutch pedal and the release/throwout bearing presses onto the centre of the pressure plate causing the 'fingers' - the springs - to bend back and take pressure off the driven plate - which is the link - the drive - between engine and gearbox.

If you have a leak your clutch will not work. This causes a 'grinding/crashing' noise when you try to change gear. The first thing you should do is check where the leak is coming from and do something about it.

The 'noise' that you mention may be due to the fact that the gears are 'grinding' as they try to mesh together without the use of the clutch.

The first thing you should do is check why there's a leak. It's difficult to see why a new master cylinder is leaking unless it was incorrectly fitted and damaged (pipes incorrectly connected..).

If it's the slave cylinder that is leaking - replace it. Easy job.

If Master cylinder and slave cylinder are ok - you have to look at your clutch unit. A clutch is always replaced with 3 parts ... throwout bearing/pressure plate and driven disk.

May 04, 2016 | Cars & Trucks

1 Answer

Have 90 toyota 4runner just replaced slave cylinder plenty of fluid but the clutch pedal just flops around no resistence either way. any answers?


Hello, try opening the bleeder valve on the slave cylinder, leave it open, pull the pedal up and then pump the pedal down and pull it up repeatedly until you feel some pressure, close the valve and try bleeding the rest of the air out in the normal manner.

Nov 03, 2012 | Toyota Cars & Trucks

1 Answer

Clutch pedal goes to floor no preasure filled and bled slave cyl same result


Hi:
If you have bled the system, you are down to either having a bad clutch master cylinder, or a bad clutch slave cylinder. You could eliminate the slave cylinder by removing the line and capping it off, and if you have a firm pressure on the clutch pedal ( don;'t try to push it down, just check for pressure!) then your slave cylinder is bad. If you cap off the line, and bleed the system, and the pedal still has no pressure, then your clutch master cylinder is bad!

Apr 15, 2010 | 2004 Chevrolet Cavalier

1 Answer

Clutch hydraulics on my BMW problem - quick fix. I went to use my 1992 318 BMW after not using it for a week and the clutch pedal had no pressure. The AA couldn't fix it so they towed it to my nearest...


THEY PUT IN NEW FLUID AND BLEED AIR OUT OF THE SLAVE MASTERCYLINDER.IF THE CLUTCH PEDAL GOES TO FLOOR AGAIN.YOU HAVE A LEAK AT CLUTCH MASTER CYLINDER.OR THE MASTER CYLINDER IT SELF GOING BAD.

Mar 08, 2010 | BMW 318 Cars & Trucks

3 Answers

!991 Jeep Wrangler clutch pedal loses pressure. I have to pump it to get enough pressure to shift. I keep it full of brake fluid. I can see no leaks. Thanks for any help.


leaky slave or master cylinder - if you have someone listen to the slave cylinder while you press the pedal is should "squelch" if there is air in there, if the slave cylinder doesn't make a squelching sound then the master cylinder or a hydraulic line between the two cylinders is leaking - slave cylinder isn't very expensive but the master cylinder can be rather pricey. and any good parts shop or motor-factor can source or make-up a new hydraulic line if it is the line itself that is leaking.

Jan 27, 2010 | 1991 Jeep Wrangler

2 Answers

1993 toyota paseo. When i depress the clutch theres no pressure


Your clutch hydraulic system is compromised. Look under the dash, where the clutch pedal has a rod going thru the firewall. If it is damp with oily fluid, your clutch Master Cylinder is leaking. Also, on the side of the transaxle, there is another cylinder, the clutch Slave Cylinder. It can be leaking, also. In any case, with a condition such as yours, I would recommend that you replace both the clutch master and slave cylinders. Over time, they can wear ionterally, and no develop the proper flui pressure to release the clutch.

Oct 19, 2009 | 1993 Toyota Paseo

6 Answers

My 1994 ford rangers clutch pedal just lost all pedal


There are two types of clutch actuators. (Mechanical & Hydtraulic)
A. For mechanical type,- Check the clutch cable as
this could be cut from wear and tear. This is easy
to replace. You can find this connected to the
pedal and the clutch lever near the transmission.
B.For hydraulic operated - Check the level of the
hydraulic oil at the cylinder of the hydraulic
actuator under the hood. This actuator is
directly connected to the pushrod driven by the
pedal. If the actuator is leaking, you have buy
a repair kit (Hyraulic clutch repair kit for Ford
Ranger 1994 MOdel.) These items must be
repaired to activate your pedal.

Oct 14, 2009 | 1994 Ford Ranger Supercab

2 Answers

Abnormal clutch pedal operation


You've replaced the master, the slave, now I would check to see if the throwout fork will move by hand. If you can move the fork by hand I would say that your pressure plate and or throwout bearing are worn out. First try to just gravity bleed the system. If that doesnt work, it may be time for a clutch, pressure plate, and bearing. The pressure plate spring pushes the pedal back up and depending on how many miles and driving habit those little arms on it break off and just wear out. I hope this helps you.

Aug 19, 2009 | 1997 Mitsubishi 3000GT

1 Answer

1990 wrangler all new slave cylinder, pressure plate,clutch,flywheel,master cylinder,only have 2 inch of pedal,after bleeding.Is there away to bleed system I dont know about.


If you have had the flywheel cut, have a clutch with a different release height (different finger or diaphram design & height) or a remanufactured pressure plate, or all of the above, you may run into this problem.
Small differences there translate to a large difference at the pedal. On linkage type designs, there were several options including longer/shorter throwout bearing or adjustable fork pivot ball. Hydraulic systems should compensate somewhat, but if you are beyond the travel of the slave cyl, I'm not sure there is anything you can do from the outside. I would check that there are no air leaks. If you have an external slave cylinder you may be able to make a slightly longer rod that connects the slave to the clutch fork. I really can't think of anything else to do at this point.
Hope this helps a bit.

Apr 19, 2009 | 1990 Jeep Wrangler

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