ust bought a second hand 2007
e90 320i with 60,000ks on the clock. Before purchasing i took the car
to bmw to get a pre inspection done.They identified timimng cover gasket
, vaccum pump change.The car dealer changed both items but who really
knows the truth.rubber auto oil seals Suzuki.
Now- I have had a small oil leak where I can see oil collect on the metal plate that sticks out under the cylinder head, I can also seel oil at the back of the cylinder, when I run a tissue around the back.
I have had the profile gasket replaced, and the problem went away for about a week , but now its back!? – Small collection of oil on the metal plate an oil on tissue when run around the back of the cylinder head.
Also i can hear this abnormal sound sometimes when i stop at traffic lights but its not always there.
I took it back to bmw tech and while test driving there was no noise.rubber auto oil seals Suzuki.
What to do now?
Couple of things to consider.
If your CCV is blocked it creates more pressure and will create oil leakage from profile gasket and vaccum pump.
When you got your profile gasket replaced, was proper torque applied on tighting screws? And if not that can lead to oil leak from profile gasket.
If I would be you, would do followings,
1- Vaccum pump changed (expensive from BMW).
2- Profile gasket changed with correct torque.
If you get the oil leak again, you will require new CCV + all hoses.
This is common problem on 320i.
Also remove the engine cover and inspect properly to find out oil leakage source.
1- Vaccum pump is what you attached in your link. It is not same as CCV.
Signs of leakage: As you mentioned, touch the back of it, and you will get plenty of fresh oil coming out.rubber auto oil seals Suzuki.
Another typical sign is, you get smell of burning oil coming into cabin, especially when you are stationary on traffic signal or on a junction.
To confirm, you can take two approaches.
a) You have to remove the plate which keeps air pollen filter in place. Remove oil cover lid.
Now pull the engine cover up and it will come off.
You should be able to have a good look at vaccum pump from there. (Top view)
b) Second option is to remove engine tray and have a good look from the bottom of car and you will be able to spot the oil leak coming from there.
I am not sure about Australia, but it is about ￡200-250 in UK.
Try a breaker in Australia to get good price and if you struggle, give me a shout. I may be able to source one for you here.
It is not DIY unless you are very competent. The space at the back of engine is not much and very hard to undo bolts (M8 size). It is held by 3 bolts and one at the bottom is difficult one.
The other problem can be, you may drop bolt in that space, which is very narrow, and later you will end up removing the bottom engine plate.
You can use mirror to have a good look, or small camera kit with monitor, if you are very keen to work on it yourself.rubber auto oil seals Suzuki.
As I said, it is not DIY thing, as you may have to tilt the engine from the bottom to approach. Try your local garage if they are competent. On TIS, it is 2.5-3 hours job.
It is completely different thing, as purpose is to separate oil drops from gases going to exhaust and also create some -ve pressure at lower RPMs.
It is very complicated and beyond the scope of this writing.
Here is link showing you CCV and all hoses.
CCV
This is under your exhaust manifold, and you can only inspect it with camera kit and lots of patience.
Or physically remove the exhaust manifold and have a good look.
Signs of wear:
1- In cold weather, you get orange, creamy stuff under your oil cover lid.
2- Also blocked CCV will give you different engine running noise. Only competent/ experience person can tell you.
3- If one of the hose is broke, your engine noise is loud on lower RPM, when pressure changes b/w CCV and hoses.
4- White / bluish smoke from exhaust.rubber auto oil seals Suzuki.
BMW was changing CCV on each E46 car when due for major service (60K).
On E90, they redesigned it, and it can last upto 80-90K depending on your oil service history.
Funny enough, it is not on BMW maintenance schedule for E90. It is only changed if somebody picks it up or knows about it.
To be on safe side, I would personally change it on 80K if my car is being serviced at 20K intervals. or 100K if I follow 10K service intervals.
It is again not DIY. TIS suggests, it is 2 hour job.
CCV itselfis about ￡30-35 but with all hoses, whole kit comes upto ￡110 in UK. DON’T just change CCV only, as blocked hoses may not help. Also two of hoses may break while taking it off.
Looking at your car history, you may not need CCV at this stage.
Forget it at this stage, unless your vaccum pump start leaking again.
I would suggest you to take engine cover off (not the one which hold profile gasket) and inspect properly to find out source of oil leak.rubber auto oil seals Suzuki.
Now- I have had a small oil leak where I can see oil collect on the metal plate that sticks out under the cylinder head, I can also seel oil at the back of the cylinder, when I run a tissue around the back.
I have had the profile gasket replaced, and the problem went away for about a week , but now its back!? – Small collection of oil on the metal plate an oil on tissue when run around the back of the cylinder head.
Also i can hear this abnormal sound sometimes when i stop at traffic lights but its not always there.
I took it back to bmw tech and while test driving there was no noise.rubber auto oil seals Suzuki.
What to do now?
Couple of things to consider.
If your CCV is blocked it creates more pressure and will create oil leakage from profile gasket and vaccum pump.
When you got your profile gasket replaced, was proper torque applied on tighting screws? And if not that can lead to oil leak from profile gasket.
If I would be you, would do followings,
1- Vaccum pump changed (expensive from BMW).
2- Profile gasket changed with correct torque.
If you get the oil leak again, you will require new CCV + all hoses.
This is common problem on 320i.
Also remove the engine cover and inspect properly to find out oil leakage source.
1- Vaccum pump is what you attached in your link. It is not same as CCV.
Signs of leakage: As you mentioned, touch the back of it, and you will get plenty of fresh oil coming out.rubber auto oil seals Suzuki.
Another typical sign is, you get smell of burning oil coming into cabin, especially when you are stationary on traffic signal or on a junction.
To confirm, you can take two approaches.
a) You have to remove the plate which keeps air pollen filter in place. Remove oil cover lid.
Now pull the engine cover up and it will come off.
You should be able to have a good look at vaccum pump from there. (Top view)
b) Second option is to remove engine tray and have a good look from the bottom of car and you will be able to spot the oil leak coming from there.
I am not sure about Australia, but it is about ￡200-250 in UK.
Try a breaker in Australia to get good price and if you struggle, give me a shout. I may be able to source one for you here.
It is not DIY unless you are very competent. The space at the back of engine is not much and very hard to undo bolts (M8 size). It is held by 3 bolts and one at the bottom is difficult one.
The other problem can be, you may drop bolt in that space, which is very narrow, and later you will end up removing the bottom engine plate.
You can use mirror to have a good look, or small camera kit with monitor, if you are very keen to work on it yourself.rubber auto oil seals Suzuki.
As I said, it is not DIY thing, as you may have to tilt the engine from the bottom to approach. Try your local garage if they are competent. On TIS, it is 2.5-3 hours job.
It is completely different thing, as purpose is to separate oil drops from gases going to exhaust and also create some -ve pressure at lower RPMs.
It is very complicated and beyond the scope of this writing.
Here is link showing you CCV and all hoses.
CCV
This is under your exhaust manifold, and you can only inspect it with camera kit and lots of patience.
Or physically remove the exhaust manifold and have a good look.
Signs of wear:
1- In cold weather, you get orange, creamy stuff under your oil cover lid.
2- Also blocked CCV will give you different engine running noise. Only competent/ experience person can tell you.
3- If one of the hose is broke, your engine noise is loud on lower RPM, when pressure changes b/w CCV and hoses.
4- White / bluish smoke from exhaust.rubber auto oil seals Suzuki.
BMW was changing CCV on each E46 car when due for major service (60K).
On E90, they redesigned it, and it can last upto 80-90K depending on your oil service history.
Funny enough, it is not on BMW maintenance schedule for E90. It is only changed if somebody picks it up or knows about it.
To be on safe side, I would personally change it on 80K if my car is being serviced at 20K intervals. or 100K if I follow 10K service intervals.
It is again not DIY. TIS suggests, it is 2 hour job.
CCV itselfis about ￡30-35 but with all hoses, whole kit comes upto ￡110 in UK. DON’T just change CCV only, as blocked hoses may not help. Also two of hoses may break while taking it off.
Looking at your car history, you may not need CCV at this stage.
Forget it at this stage, unless your vaccum pump start leaking again.
I would suggest you to take engine cover off (not the one which hold profile gasket) and inspect properly to find out source of oil leak.rubber auto oil seals Suzuki.
No comments:
Post a Comment