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    Cracked Cylinder Head!

    I own a 2004 Z4 3.0.
    I am at approximately 140,000 miles.
    Never had any major problems until now.
    Guess what. Cracked Cylinder Head!
    No warranty left. Repair estimate is at about $7,200.00
    It all began in 2006 with an oil leak gasket replacement.
    The oil leak came back after a year and was replaced two more times.
    In addition the valve cover assembly was also replaced.
    The fourth trip nothing seemed faulty with the replacement parts so they cleaned things up and put them back together and the oil leak ceased.
    The fifth trip (present day), mechanic drove the car for a day and thoroughly check the same oil leak. Now it was leaking at or near one of the spark plugs.
    Dealership reported that the #2 cylinder head has a crack.
    Any suggestions. Can BMW customer relations help me out on this one? Have I been screwed by bad mechanics that failed to fix the car and in the process they are the ones who have caused the cracked head. I have never been more upset about anything in my entire life. See me in the 5 o’clock news…next to the dealership that’s on fire.

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    PS

    Oh, I almost forgot to mention, they decided to temporarily fix the problem with some kind of Epoxy crap because I do not have enough blood to donate to cover the $7200.00 repair estimate. I might have some playdough around here somewhere, hmmmmmm.

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    Member No: 71351 blaZen is an unknown quantity at this point blaZen's Avatar
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    What State do you live?


  4. #4
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    California


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    Re: California

    Too bad. Probably the best BMW private shop is outside of Memphis. Doc's Bimmer Service in Oxford, MS.

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    Re: California

    I really need to take some time and look around in my area more often...I haven't been keeping up with things in general and there might be some private shops under my nose...it is quite interesting the trend that many car owners face...once your warranty is out you start looking for private shops that are obviously cheaper and do the same quality of work...and then sometimes it's safer to go to the casino (joking)...as for the dealerships and the economy, nothing shows it better than on a Saturday when there is not one customer on the lot and the employees have all been downsized...we live in scary times, save your money folks, we're in for a bumpy ride. Maybe that new X6 will do, keep dreaming.

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    Teddy, what dealership did you use?...more

    If you want to email me that info, that would be fine.

    Scott Pettit

  8. #8
    pelerojo
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    Re: Cracked Cylinder Head!

    I have seen engines on ebay with 50k miles for $3-3.5K. I realize there may be shipping and labor involved but with 140k miles I think this would be better all around.

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    Re: Cracked Cylinder Head!

    thanks for the advice, might be worth looking into

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    new update...word for word description from dealer

    Got my car back this morning, here is what the invoice said word for word, real interesting on the use of the word "seems" towards the bottom, something really stinks about all of this.

    :BEGINNING:
    Customer states oil leaking from the vehicle. Appears to be leaking from the same place that has been fixed previously. Inspect and advise. Parts Warranty?? See shop foreman remove all coils, found spark plug 2 full filled with engine oil. Reported to foreman, cleaned all oil from engine, run engine with coil 2 removed per foreman. Inspected for oil leak while engine running, the oil seems leak out from wall of hole 2. Reported to foreman. Cleaned engine, monitored oil leak with foreman. The leak was not leaking as bad as use to. Unable to tell where is leaking from. Cleaned engine again. Have the team leader took vehicle home for longer test run. Recheck next morning. Found hole 2 has leak. Added dye into oil. Send Porter out for road test, reinspected for leak, unable to see dye anywhere, not even on deep stick. Dye is bad? Cleaned engine once again. Sprayed glass cleaner on hole 2 wall, applied baking soda on cleaner. Send Porter out reinspected after road test. The baking soda with oil can be seen clearly hanging on spark plug hole. "The head seems cracked." Inspected by foreman. Applied epoxy as best possible. Slight leak still present. Recommendations, replacing cylinder head.
    :END:

    Oh, I almost forgot to mention that throughout these last few days while my car was being test driven, I now have a new quite noticeable scratch/ding on the rear lower right corner of my bumper.
    F'n F*gg*ts!!!

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    Rebuilt head

    ..it does sound that the head needs to be replaced but you would find a used one from a salvage yard [ low mileage Z4 ]for a much lower price.
    & in the long run it's probably good to go to an independent specialist shop. They will replace it for far less. Do the dealers know why the head cracked; did they overtighten it while replacing the gasket [ was it a OEM or aftermarket gasket; was it a compromise on torque specs ] or was it a heating issue.
    you might want to get to the root of the problem; because if it's a heating issue that caused the crack then the problem will resurface down the road.

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    Re: Rebuilt head

    I made an appointment this coming Monday to meet with the head manager and the head mechanic to get to the bottom of this issue. I like your insight, I admit I am not an expert on these issues but I will use some of your questions and see how they answer, especially this one...

    "Do the dealers know why the head cracked? Did they overtighten it while replacing the gasket?"

    As of now, I have not been given any explanation on why th cylinder head cracked. Which goes to show that the dealership is not doing me diligence on this matter. Who knows, maybe they think I will settle on the repair order or trade in my car for a new one. Truly though, thanks for your advice, I need all the ammo I can get on this matter. To be cont...

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    Re: Rebuilt head

    yes i think getting to the root is one fo the best course of action. [ albeit reading your update it sounds like they could not pinpoint the cause ]..if you want you can give them some options. Typically heads crack due to heat stress or mechanical stress.

    Mechanical stress would be due to overtightening of the head bolts or tightening them in an incorrect order . In a busy day at a busy dealership there is a good chance of such an occurrence.

    Heat stress is usually due to a lean burning engine or prolonged revving of the engine at high RPM levels. It may have been low on coolant [ because we have a idiot temp gauge ] or it is possible the MAF sensor is dirty or kaput and is causing a lean burn cycle. I would say lean towards a heat stress cause because there are many sensors in the distributor less ignition system which can cause premature explosions or a lean burn.

    PS: check the plug rating [ i think our cars has the platinum 4 resistor style but they should be of the right temp rating; hot plugs can cause heat build up at the heads. ]

  14. #14
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    check for coil TSB..

    i just recalled that my dealer had acknolwedged a TSB for coil replacement [ & a TSB for fuel pump malfunction ] which apparently affected 03-04 Z4. It had to do with not having Bremi coils [ or maybe it was the other way around ]. Anyhow incorrect coils would cause surge and cause lean burn .

    And next time as a prevetive measure put some Redline Water wetter in the cooling system. It lowers the surface tension of water.

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    Teddy, why did you call the service people...

    the names that used at the end of your post?

    Scott Pettit

  16. #16
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    Sorry, I was really upset at the time,

    I don't mean to offend anyone online reading that part of my post. I will try to refrain my anger in the future.

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    It's OK to be angry but I think that you...m

    will find that the response to your posts will be effected by your wording.

    By the way, I replied to your email. Let me know if you want me to get involved.

    Scott Pettit
    President
    ZSCCA

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    Monday

    Mondays

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    ooops,...Monday's update

    Newest update:
    After meeting with the head service manager and the head mechanic this morning. They were very mindful and considerate on this matter. I still could not get a complete answer as to why/what caused the cylinder head to crack. But I did get an answer from the head mechanic that the cylinder head is "indeed" cracked. After a lot of discussion, their advice was for me to contact customer relations. I've handled complaints before and it will take a little time to gather the exhibits and facts. I sure hope that my complaint will be handle by someone with the proper expertise, and who can help find support to my claim on this matter. Besides, how is it going to reflect on customer relations when they have produced a car that has a history of major problems every 60,000 miles. Also due to the fact that I now have over 140,000 miles and my extended warranty ended at 100,000 miles, chances are slim to none that the extended warranty could have any valid effect in this matter because it's EXPIRED. For example, how do we know that this problem didn't occur some point after 100,000 miles. You see, these are the types of doubts that will be used to discredit why a failure to fix a common repair led to an uncommon repair estimate. And therein lies my argument through the service records. Are these service records substantial enough to convince customer relations that this car may have been poorly built/assembled/repaired. My answer is "YES" the service records very well indicate, and if reviewed objectively by customer relations, that any and or all of these factors have occurred during the history of this car. That's it all for now, I now have a very important task ahead of me. Wish me luck.

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    Re: ooops,...Monday's update

    Teddy,
    I had some electrical glitches on one of my previous bimmer. And one of the effective course of complaint was to send them in writing. I have an accounting the owner's circle of BMWUSA. You can create an account if you don't have one and contact CR that way as well.

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