Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
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  1. #1

    Occasional burning oil/tarry smell

    Car is running well, no codes, no noticeable leaks and fluid levels are not dropping... Every once in a while, say, 3 or 4 outings, when backing or stuck in traffic, I get a strong whiff of a very tarry / burnt oil smell. There is no noticeable smoke (of any color), and when I sniff at the tail pipes and under the hood right afterwards, it is not really obvious where its coming from...
    03, manual, sedan, 68,xxx miles.
    Thoughts?
    Thanks.
    '03 330i/6 ZHP TiAg
    2017 Chevy Bolt
    2016 eGolf meh... Gone
    Donated: '97 328i (wife's)
    Sold: Supercharged '96 318 Convertible
    Sold: '05 330/6 ZHP SilverGray

  2. #2
    Join Date
    Mar 2014
    Location
    Houston, TX
    Posts
    1,745
    Probably from the catalytic converters. Some oil gets into them and it's probably burning it off

    My 7 year itch.

    Mods: BimmerBrakes Headers, Magnaflow full system, BYS Cross Drilled and Slotted Rotors, Hawk HPS Pads, Racing Dynamics Intake, Dinan Throttle Body, Bavarian Auto Short Shifter, ECS Tuning Strut Bar, Projector Fogs, Blackout Grilles, Euro Smoked Tail Lights, Black Corner Lights.

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  3. #3
    Join Date
    May 2012
    Location
    Marin County, CA
    Posts
    364
    Valve cover gaskets?

  4. #4
    Join Date
    Dec 2012
    Location
    Salt Lake City, UT
    Posts
    6,871
    +1 Valve cover gaskets leaking. Leaks on to manifold. Much stinky.
    In the market for an E90 M3

  5. #5
    Join Date
    Apr 2012
    Location
    Long Beach, CA
    Posts
    1,684
    another vote for valve cover gaskets. I was getting the smell through my vents. new gasket fixed it right up.
    2005 BMW 330i ZHP 6MT. Built 11-19-04. Bought 4-2012.
    Stock: Nav, leather, PDC, Xenon
    Added by me: OEM Alarm, OEM heated seats, OEM aux kit, OEM Bluetooth, intravee, M3 strut brace, BMW Performance Intake, Nappa leather arm rest, updated LCM (triple blink, euro hazards, trifecta lighting, 3 stage brakes), temp gauge

  6. #6
    Join Date
    Sep 2012
    Location
    Asheville, NC
    Posts
    73
    Most likely the VCG as mentioned above. When the engine is cold, run you hand or rag at the lower side of the valve cover next to the fire wall. If it's the VCG, you'll find a small amount of oil collecting & eventually falls onto the exhaust. That's where the smell comes from
    '05 330CiC w/ZHP option Semper Fi!

  7. #7
    Thanks all- I'll check it.
    Did the brakes last weekend, looks like its vcg soon.
    '03 330i/6 ZHP TiAg
    2017 Chevy Bolt
    2016 eGolf meh... Gone
    Donated: '97 328i (wife's)
    Sold: Supercharged '96 318 Convertible
    Sold: '05 330/6 ZHP SilverGray

  8. #8
    Join Date
    Apr 2011
    Location
    Middle River, MD
    Posts
    1,022
    Valve cover gasket for sure.

  9. #9
    Join Date
    Jan 2013
    Location
    Central California
    Posts
    687
    Quote Originally Posted by llll1l1ll View Post
    Valve cover gasket for sure.
    ... and maybe the ccv too. Crankcase pressure causes oil to be pushed out of a weak VCG.

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