Why it leak again???

[bmw7833]

Use this to stop if only minor leak..:4:..oppss..

 

[Ibrahim Hanif]

Ibrahim, this cannot be happening since you have just did all the necessary during the last service.
2 things comes to my mind. 1. Your mechanic made some mistakes installing the fresh seals during your last service or 2. It's a fresh leak elsewhere.

However I believe that your mechanic should be competent enough to handle the job which leads me to be of the opinion that it's something else.

First determine what is the color of the oil stains. This will give you some indications what is leaking. My suggestion is to use a powerful torch light to check these areas 1. Steering rack, 2. Power steering pump 3. The high pressure hose 4. Under the car the Auto Transmission.

You can also place some old newspaper directly under the GB and also directly under the fire wall (if the vacuum pump leaks it will stain here) Btw park the car on level ground if you are running this test.

Lastly, have you check the level of engine oil or the power steering fluids?

Hi Vincent,

Yup, mine leaking exactly under the GB. I guess it's from the vacuum pump as what my mechanic said before. I currently checked my oil level and keep on top up when necessary. The power steering fluid i haven't check. Is it become a factor of oil leak?. I did noticed by power steering hose is a slight leaking already buy no droplets under it. My leak is exactly under the front hole of the plastic cover underneath.

 

[Ibrahim Hanif]

Try not to let the leak catch fire.. :4:

Vacuum pump leak is like this.. looking up from the bottom of the car, through the cat converter. It drips onto the exhaust cat converter and possibly u will see smoke or smell the brunt.




N42 DIY fix: http://www.bimmerforums.co.uk/forum/f91/2002-e46-318i-n42-vacuum-pump-repair-t89903/

N46 DIY fix: http://www.bmwland.co.uk/forums/viewtopic.php?f=4&t=134590&p=1128575

I do think of this. Thanks a lot dude. Try to do DIY this weekend

 

[astroboy]

I do think of this. Thanks a lot dude. Try to do DIY this weekend

Remember the golden rule of thumb for DIY, try not to leave behind a bigger mess than it was.. Good luck! :4:

 

[Vincent Hor]

Better bring to your mechanic. I don't think the vacccum pump can cause so massive leak. What is the color of the oil stain? Could be a flywheel oil seal which is labour intensive. Gear box have to be dropped.

 

[initialM]

I agree, but maybe my ride is too old for not having any leak..seriously, I did a few times but it still persists and the fixing cost is quite high...unless it is getting serious then I will consult my mech..otherwise, I would rather wait and monitor..

My ex E39 was an old car but the undercarriage is dry like desert.

 

[Ibrahim Hanif]

I've changed the flywheel oil seal recently. I need to check with him this weekend and try to ask him where the leak come from. If the flywheel oil seal leak it must be a problem during the installation.

 

[Ibrahim Hanif]

Better bring to your mechanic. I don't think the vacccum pump can cause so massive leak. What is the color of the oil stain? Could be a flywheel oil seal which is labour intensive. Gear box have to be dropped.

I've changed the flywheel oil seal recently. I need to check with him this weekend and try to ask him where the leak come from. If the flywheel oil seal leak it must be a problem during the installation.

 

[Ibrahim Hanif]

My ex E39 was an old car but the undercarriage is dry like desert.

Bro, any workshop to recommend in JB area?. Anyone who i can look for to service and check my car?. I guess you can recommend me your mechanic. Thanks

 

[astroboy]

My ex E39 was an old car but the undercarriage is dry like desert.

That's because u one day mandi 3 times.. :24:

 

[Ibrahim Hanif]

That's because u one day mandi 3 times.. :24:

Hari2 mandi mmg x sempat basah. Hehe