How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Brendan Block Your Own Question

Brendan Block
Brendan Block, BMW Technician
Category: BMW
Satisfied Customers: 259
Experience:  I have been a BMW Technician for nearly 10 years and specialize in engine conversions, brake upgrades and race car preparation.
Type Your BMW Question Here...
Brendan Block is online now
A new question is answered every 9 seconds

528xi: i am replacing the valvetronic eccentric sensor on a

Resolved Question:

i am replacing the valvetronic eccentric sensor on a 2008 bmw 528xi....there is no oil in the sensor when i removed the plug on top of the sensor....i have not removed the valve cover yet and i was just wondering if this sensor can go bad without there being oil inside the sensor....also will i need to get a need valve cover and screws for this year? thanks
Submitted: 1 year ago.
Category: BMW
Expert:  Brendan Block replied 1 year ago.

Fidhle007 :

Hi there!

Customer:

hey man

Customer:

so what do ya think?

Fidhle007 :

Yes, it is totally possible for a sensor to fail with out oil contamination.

Customer:

ok

Customer:

is there a possibilty that it is the valvetronic motor itself?

Fidhle007 :

I wouldn't expect you'll have to change the valve cover in the process but refreshing the gasket is always a good idea.

Customer:

i just dont want to rip this whole thing apart and not fix the prob

Customer:

right...i do have a new gasket

Fidhle007 :

Hold co

Customer:

ok

Fidhle007 :

Hold tight for a few minutes and I'll be in front of my books and can give you the whole process!

Customer:

ok thanks!

Customer:

i have a DIY im using from bimnmerpost too

Customer:

welcome back

Fidhle007 :

Ok, so here's what my shop manual is telling me:

Customer:

okie

Fidhle007 :

Remove the microfilter housings and coil cover. Rotate the motor in a clockwise direction gently until you feel resistance on the eccentric shaft stop. Remove fasteners and pull motor out

Fidhle007 :

It sounds like you're already there so at that point installation is the reverse of removal!

Customer:

ok

Fidhle007 :

Pulling the valve cover should not be needed although if you have the gasket I might change it for the heck of it just so you know it's fresh.

Customer:

i dont have a new motor...i have a new sensor

Fidhle007 :

Haha, ok, on sec

Customer:

the valve cover have to come off to get to the sensor

Customer:

i was just wondering if it is possible for the motor to be bad...and not the sensor...and if there is any way to tell

Customer:

bc the sensor does not have oil in it...which is typical i guess for a bad sensor

Customer:

but you are saying that the motor is much easier to replace than the sensot

Customer:

r

Fidhle007 :

It is, looks like about a 20 minute job with the right tools.

Fidhle007 :

What led you to replace the sensor?

Fidhle007 :

Can you post a link to the DIY if you don't mind?

Customer:

http://www.e90post.com/forums/showthread.php?t=697252

Customer:

bc when i read the obd2 code it said P1017

Customer:

which is a faulty valvetronic sensor i guess

Fidhle007 :

That's a pretty comprehensive overview, nice!

Fidhle007 :

Before you get too far into everything I'd see if you can find someone with a BMW scan tool

Customer:

ah ok

Fidhle007 :

and perhaps there's another code that would be more clear.

Customer:

rihgt

Customer:

unfortunately i dont know anyone with that tool

Fidhle007 :

Let me look up that code though...

Customer:

alright

Fidhle007 :

Ok, that's definitely the sensor code. Did it come back immediately after clearing it?

Customer:

yes

Customer:

came right back

Customer:

also...the spark plug things with the little flip up lock things...do i just yank those out?

Fidhle007 :

Yes, carefully! :-) They should just pull straight out.

Customer:

there was 2 codes...duplicatea

Fidhle007 :

Before you get too involved, can you clear them again and go for a test drive?

Customer:

ummm....its too apart for that, lol

Customer:

she has been driving it all week after i cleared codes

Customer:

Happens not at any certain speed, begins to chug and the yellow check engine light comes on. Chugging stops and then awhile later while still driving it goes off. Doesn't happen everyday

Customer:

The other day after sitting at airport for 2 days in the structure it took 3 tries to start but has not happened since when in my garage

Fidhle007 :

Yeah, classic sensor failure symptoms, sorry to say!

Customer:

alrighty! well i have that part...now just gotta do the work, lol

Customer:

will u be around later if we need help again? haha

Fidhle007 :

Yes, I should be! I'll be at the shop for awhile and after that I'll get emails if you ask me more questions. Good luck!

Customer:

ok thanks! ill leave this window open

Fidhle007 :

Perfect, same here.

Customer:

sooooo.....i got everything off.....but when i took the bottom bolt of the sensor.....it felt down into the chain housing area. i tried sticking a magnet down there but i didnt pick anything up ....can i remove the oil pan to get to it? its an XI so does that mean there is transfer care and junk underneath the motor? uhggg.

Customer:

*fell

Fidhle007 :

Sorry I'm just getting back to you now, I've been working!

Fidhle007 :

Are the other bolts aluminum?

Customer:

They are not aluminum so if we can locate it we should be able to pick up with magnet. Problem is locating it! Trying again this morning in daylight but wondering if a different perspective from underneath will assist. To question above can we remove the oil pan and get to it in your opinion? It's an xi....

Fidhle007 :

I would avoid it if possible

Fidhle007 :

because the front diff and axles would have to come out I believe

Fidhle007 :

but as a worst case, don't discount it...

Fidhle007 :

Don't worry, I have been EXACTLY where you are more than once!

Fidhle007 :

Get a really big flashlight and use your magnet

Fidhle007 :

Failing that, I'd drain the oil and try to fish in through the plug hole first. If you get nothing there I might try to pull the Thermal Oil Level Sensor and see if you can get in that way.

Fidhle007 :

I wish you the best of luck, let me know if you find it!

Customer:

where is the thermal oil sensor?

Fidhle007 :

It should be on the bottom of the pan, probably on the drivers side

Customer:

we r goin to go buy a scope

Customer:

and a snakey magnjet

Fidhle007 :

it might not be there on your car, but if it is you you'll see something held in with three 10mm nuts

Customer:

]ok

Fidhle007 :

Good! A scope and snakey magnet are my best friends sometimes...

Customer:

awesome thanks

Fidhle007 :

No problem! Good luck!

Fidhle007 :

Keep me posted!

Customer:

well...went and bought some better stuff...but still cant find it from the top

Customer:

scope really cant see much....not enough light....i havent tried the oil pan thing, but my neighbor seems reluctant to try that....bc we have to drain the oil.

Customer:

i mean if we cant see it at all from the top and havent picked it up with the magnet...then i think theres really only one place it could be

Fidhle007 :

Well you're going to have to drain the oil no matter if you look in through the drain plug hole or drop the pan...

Customer:

right

Customer:

i can go thru the drain hole with the scope.

Customer:

we just dont know if its worth it

Customer:

cause if we do all that....and its not there

Fidhle007 :

Then you may have to start dropping the pan

Fidhle007 :

You might be able to drop it a little ways and reach in with the magnet

Fidhle007 :

or see in with the scope

Fidhle007 :

what's the last seven digits of your VIN?

Fidhle007 :

I'll see if I can find a diagram

Customer:

ok, let me get it

Customer:

CZ57193

Fidhle007 :

Ok, one minue...

Customer:

ok thanks

Fidhle007 :

Full Size Image

Fidhle007 :

That's a diagram of your oil pan if that helps at all...

Fidhle007 :

I'm guessing the bolt would have to be in front part

Customer:

ok....so in all likely hood it would be in front which is the deepest part

Customer:

right

Customer:

lol

Fidhle007 :

Exactly

Fidhle007 :

So I'm not sure if the drain plug will help you in this case

Fidhle007 :

but the good news is it doesn't look like it's dropped any further back

Customer:

well...it would be enough to get the scope in there

Fidhle007 :

Like it did on the LAST car I had this happen on...

Customer:

further back?

Fidhle007 :

Yes, getting the scope in would be a big help

Fidhle007 :

On the S52 motor on the E36 M3 the deepest part of the pan is midway back

Fidhle007 :

I had a bolt fall in one of those once

Customer:

oh

Fidhle007 :

not fun!

Fidhle007 :

Just trying to give you some words of encouragement!

Customer:

i just hope its not like in a chain valley or tensioner....thats my biggest concern

Customer:

if its in the pan...then thats fine

Customer:

i tried to stick the magnet in all the places i think it might be on top of the motor

Fidhle007 :

Did you hear it fall?

Customer:

i did hear it

Customer:

the classic tink tink tink, lol

Fidhle007 :

and did it sound like it dropped all the way down

Fidhle007 :

and maybe splashed?

Customer:

um...not sure

Customer:

lol, no splash

Fidhle007 :

I'm not sure it would have made a splash in the oil anyway but perhaps it's not all the way in the pan...?

Customer:

yeah

Customer:

theres no telling where it is really

Fidhle007 :

Full Size Image

Fidhle007 :

I'm thinking it has to be in that right side chain guide somewhere...

Customer:

the right side....hmm

Fidhle007 :

Of the picture

Fidhle007 :

I guess left side of the car...

Customer:

yeah

Customer:

theres some space behind the left hand guide as well

Customer:

and it might be there

Customer:

i dont know....im very aggrivated

Fidhle007 :

I don't blame you!

Customer:

u think i should just give up and have it towed to an indy shop or something

Fidhle007 :

I'm sorry you're going through this, I've been there, it's not fun!

Customer:

would they have better methods

Customer:

yeah....this really sucks, lol

Fidhle007 :

Perhaps.

Customer:

ok

Fidhle007 :

Maybe drain the oil and try looking in the drain hole

Customer:

so if i was to do this....how do u get the car in neutral without starting the car

Fidhle007 :

if that fails, have it hauled off before you try setting anything on fire!

Customer:

ok

Fidhle007 :

I believe there's a procedure in your manual

Fidhle007 :

but I'll look it up anyway

Customer:

ok

Fidhle007 :

you have to pull up the shift boot and do something with a screwdriver

Customer:

ok

Fidhle007 :

I've done it, but it's not fresh in my memory

Customer:

its an automatic

Fidhle007 :

one second, I'll look it up

Customer:

ok thanks.

Customer:

and also...should i finish the job up top...and then have it taken away....or just leave it taken apart

Fidhle007 :

That's up to you. Keep in mind you're missing a bolt though so don't get it too buttoned up!

Fidhle007 :

http://www.youtube.com/watch?v=1VeyhBGOO78

Fidhle007 :

Oops, let me make that a link

Fidhle007 :

That's the neutral override I was referring to

Customer:

ok, thanks

Customer:

couldnt i just go get a bolt from ace hardware?

Fidhle007 :

If they have one, sure. Was it a Torx head though?

Customer:

nope...just a 10mm head

Customer:

short tho...and not threaded all the way up

Fidhle007 :

Ok, well that's easy enough

Fidhle007 :

you just need the right length

Customer:

ok

Customer:

are they gunna want to pull it all apart again to look for the bolt, or is it easier for them to go from= the bottom?

Customer:

this is the last question i promise, and im gunna give u the best rating, lol

Fidhle007 :

Lol, no sweat!

Fidhle007 :

I'm not sure what they'll want to do

Fidhle007 :

It might be best to leave the top loose so they can look in there

Fidhle007 :

maybe just place the cover on top but don't bolt it down?

Customer:

ok

Customer:

well...we r going to decide what to do.

Fidhle007 :

Ok, good luck my friend!

Customer:

thanks dude!

Fidhle007 :

No sweat! Where are you located?

Customer:

lake orion, mi

Fidhle007 :

Ah damn. Sadly I don't know any shops in your area

Customer:

yeah, i know a good on

Customer:

one*

Fidhle007 :

Ok, good.

Customer:

alright, well if u want to know how everything went my number is XXXXX

Fidhle007 :

Well, good luck!

Customer:

thanks for all ur help, im gunna close the chat window now

Fidhle007 :

Your number was blocked by the site, sorry

Fidhle007 :

I'll schedule a follow up to see how it all went.

Customer:

two one six nine seven three one zero two eight

Customer:

that work? lol

Fidhle007 :

Lol

Customer:

oh ok

Fidhle007 :

yes

Customer:

ok good

Customer:

lol

Fidhle007 :

Thanks man!

Customer:

no probs...have a good rest of ur day

Fidhle007 :

You as well!

Customer:

thanks again!

Brendan Block, BMW Technician
Category: BMW
Satisfied Customers: 259
Experience: I have been a BMW Technician for nearly 10 years and specialize in engine conversions, brake upgrades and race car preparation.
Brendan Block and other BMW Specialists are ready to help you
Expert:  Brendan Block replied 1 year ago.
Just checking in to see if you found the bolt!

Thanks!
Brendan

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
< Last | Next >
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles Walnut Creek, CA
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim Castleberry, FL
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
 
 
 

Meet The Experts:

 
 
 
  • Roger

    BMW Master Tech

    Satisfied Customers:

    2906
    10 yrs. experience as BMW Master Technician, shop foreman and dealer.
< Last | Next >
  • http://ww2.justanswer.com/uploads/Guest/2008-02-15_191551_avatar.jpg Roger's Avatar

    Roger

    BMW Master Tech

    Satisfied Customers:

    2906
    10 yrs. experience as BMW Master Technician, shop foreman and dealer.
  • http://ww2.justanswer.com/uploads/EU/eurotec/2012-6-11_13153_mpjaphoto.64x64.JPG Marty's Avatar

    Marty

    ASE Certified Technician

    Satisfied Customers:

    406
    ASE & Bosch Certified Master Tech. Over 30 years experience.
  • http://ww2.justanswer.com/uploads/DA/dansciol/2012-7-7_16177_danpic.64x64.jpeg bimmaster's Avatar

    bimmaster

    BMW Technician

    Satisfied Customers:

    1817
    3 years dealer experience, master bmw tech
  • http://ww2.justanswer.com/uploads/bmwmaster/2009-05-09_062111_avitar.jpg Sam's Avatar

    Sam

    BMW Master technician

    Satisfied Customers:

    1043
    BMW S.T.E.P. graduate, 10 years BMW dealership experience
  • http://ww2.justanswer.com/uploads/hondatrx450/2010-01-18_231606_stuff_092.JPG mike's Avatar

    mike

    BMW Technician

    Satisfied Customers:

    694
    bmw master tech ase certified
  • http://ww2.justanswer.com/uploads/CA/caprio23/2011-12-13_155550_20111213105344.64x64.jpg Anthony's Avatar

    Anthony

    BMW Technician

    Satisfied Customers:

    628
    ASE Master Automobile Technician with over 20 years exp. in this field.
  • http://ww2.justanswer.com/uploads/bmwbum01/2009-12-28_205712_germany2000.jpg Thebmwbum's Avatar

    Thebmwbum

    BMW Foreman

    Satisfied Customers:

    533
    31 years BMW Experience