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Old 11-22-2011, 01:55 PM   #1
1st Gear Newbie
Join Date: Nov 2011
Location: Kincardine
Posts: 11
'94 318is leak

I am new here, I came from the VW/Audi world.

I recently picked up a '94 318is. I drove it for a week before parking it in the garage for the winter.

The issue I have to ask about is a leak that is seen at the bell housing. I have researched this as much as possible. The fluid is clear, and looks, and tastes like brake fluid. I don't think it is brake fluid. The fluid comes out when the car is running, and it is very noticeable pooling on the floor. I got under the car, and could not see where the leak was coming from. I pulled out the rubber plug located at the side/bottom of the bell housing. There was some of this fluid in the bottom of the bell housing.

I am thinking it is either transmission fluid? Although I am not sure what manual tranny fluid looks like.

In my research I have found others that have this leak, found it as a faulty Constant Pressure Valve leak on the passenger side of the block. I don't know if this 1.8 has that valve?

I haven't got my bentley manual yet either.

Does anyone have any thoughts on what this might be?

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Old 11-23-2011, 08:13 PM   #2
1st Gear Newbie
Join Date: Nov 2011
Location: Kincardine
Posts: 11
I have done more research, and now have a service manual.

I have come to the conclusion that the issue is the clutch slave cylinder. The seal around the actuator, located in the bell housing is leaking. I have not pulled the unit, but all research and what I am seeing points to this. I will have the car towed to the shop in the spring. This will eliminate any further damage to the clutch, gearbox, and possible brake failure.
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