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-   -   Dog Rough after fixing control arm bushes. (http://forum.e46fanatics.com/showthread.php?t=959808)

wateece 12-08-2012 11:51 AM

Dog Rough after fixing control arm bushes.
Hi Guys

I replaced my control arm bushes today using the info on here, was pleased with how it went until I dropped it off the ramp and went for drive. The handling was much improved but the car perfomance stank.

Basically she has no pull, revs a lot, mpg drops massivley yet mph on creeps up. You can get up to speed but it takes ages.

I honestly cant believe I disturbed anything as there isnt much to disturb, so I plugged it in and I get a p0366 and p0011 fault return, which is the exhaust crankcase position sensor. Spent some time on here and also read that it could be a CVV failure as I have the sypmtoms for that too.

I have mayo on the dipstsick, its beens been burning oil recently but I also switched to 10/ 40 after reading on here that sometimes works.

I really am skint at the mo, so am looking for ideas on what to do next.

It's a 318i Touring 2002 with 110000 miles on the clock

any ideas.



Ruthlessone3k 12-08-2012 12:00 PM

By "mayo" on the dipstick I'm assuming you mean there is water in your oil and it looks like a milky sludge on your dipstick. If this is the case you need to find the source and eliminate it. The most common cause I know of is a head gasket leaking. But I'm new to e46's so there could be something else I suppose. In any case the water in your oil in a disaster waiting to happen. This will cause your bearings to fail very quickly, you will end up with bad crank bearings and rod knocking. worst case you could grenade your block. The poor performance sounds like limp mode.


wateece 12-08-2012 12:19 PM

I read that this was often another symptom of a failed cvv. I know it can also be a head gasket, but am praying it isn't. So want to eliminate cheap options first and know if what I've read is accurate. Thanks for the reply much appreciated.

Chris C 12-08-2012 12:24 PM

Based upon what you've written it appears that you had other issues going on before you changed the control arm bushings. With the car inclined on the ramp for a period of time that could have allowed more coolant to get into the oil if you have a head gasket leak. Strange problem indeed but replacement control arm bushings don't cause that behaviour. Check your coolant to see if it has oil in it. Good luck.

Stinger9 12-08-2012 12:48 PM

Virtually everything you mention as a potential problem can be tested for, and I think you should plan on doing some of these tests. Some can be found on youtube.
Let us know if you need any specifics on how to do these?

pleiades 12-08-2012 01:00 PM


My guess is that your oil separator is clogged and needs to be replaced along with all the hoses. Either that or you need to drive the car for longer stints at higher RPMs and see if that clears out the mayo.

The mayo is more common in the CCV (oil separator) system when the weather is cold. It's an emulsion of spent emission fumes (which includes water) and oil.

Ruthlessone3k 12-08-2012 01:14 PM

Do an oil change and tell us how much "mayo" is in the water. This could help tell the difference between contamination from the CCV and a head gasket. Also check the coolant for signs of oil. Head gaskets often leak both directions oil in water and water in oil.

Stinger9 12-08-2012 01:40 PM

True, and if the removed oil is recently changed, and comes out looking good, you can put it back in if $ are an issue.

wateece 12-08-2012 02:53 PM

So been doing some more reading on testing a failed cvv. Balloon on the dipstick or plastic.bag over the filler cap? Or something else I haven't read or heard.

pleiades 12-08-2012 03:35 PM

You should have slight vacuum, whether at oil cap or DS tube. No vacuum or strong vacuum = dubious CCV.

Stinger9 12-08-2012 03:56 PM


Originally Posted by wateece (Post 14962520)
.bag over the filler cap?

This the best

wateece 12-08-2012 03:59 PM


This is what made me thinks its the cvv.

wateece 12-09-2012 01:57 AM

Thanks for all the replies so far guys. I plan to do the vacuum test this morning and also have a look at the coolant. Is a failed CVV likely to throw up the codes I get or could these also need doing too???

wateece 12-09-2012 03:09 AM

Just remembered another question, would I be able to reach 80mph in limp mode???

wateece 12-09-2012 06:18 AM

Just spotted the time difference, you chaps will be tucked up in bed.

I tried a couple of the tests recommended on here, and have posted the videos below. Apologies for the poor film work but its hard with just one hand. Not knowing what an excessive vacuum is, i would be interested to have your views.

Once again cheers!


Stinger9 12-09-2012 12:31 PM

It's a rotten video (no offense), but I'd say it's excessive vacuum as far as we can see.
You've also got a vicious rattle there that I'd be concerned about. If I were you I'd get my hands on a stethoscope to listen to each individual component with more precision that you can do without. Here in the states I got a cheapie for $4, so hope you can get something close.
Take a close look (listen) to that DISA for the rattle.

What stuff have you previously replaced?

wateece 12-09-2012 01:14 PM

Hey no offence taken, I know it's poor. Will add it to my lost of worries, and things to check. Should it suck that much? Or is the video just to poor to tell.

Stinger9 12-09-2012 01:25 PM

Excessive means too much.

Come back with better vid (like you see at youtube) if you want an upgrade in our diagnosis.

wateece 12-12-2012 12:46 AM

Well it turns out you were right to be worried about the rattle car broke down today, looks like the cam tensioner has gone and also the guides. Must have been on.it's way so big expense heading my way. Thanks for all the replies guys.

Stinger9 12-12-2012 09:07 AM

Sorry for that kind of news. Hoped it was just gonna be some part that was falling apart that would be easy to replace.
Keep us posted on what happens.

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