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Thread: The Random E46/ZHP Question Thread

  1. #7251
    Join Date
    Nov 2017
    Location
    Irvine, CA
    Posts
    269
    Quote Originally Posted by Prestovie View Post

    I guess it could be a tire balancing issue but the weights are all still on, not like its a new set of wheels. Just had the car aligned a few weeks ago with the winters on. I may have just been unlucky and accidentally rotated my tires because I didn't have them marked.
    Anyone have any ideas? I'm waiting for it to be something simple but I've looked over everything.
    Symptoms: wobble at any speed, seems to be consistent at anywhere from 10mph to 45mph(highest I've gone with this problem), steering wheel bucking back and forth, audible "wubbing" coming from the rear.
    Just some guesses off the top of my head:
    - wheel / tire balance?
    - directional tires rotating backwards?
    - rust on the mounting face(s)?
    - flat spots in your tires?
    - recheck the torque of your lugs

    Doesn't seem safe to drive.

    Swap back your winter wheels/tires and see if the problem persists.

  2. #7252
    Join Date
    Nov 2016
    Location
    Charlotte, NC
    Posts
    2,690
    Quote Originally Posted by Will View Post
    Just some guesses off the top of my head:
    - wheel / tire balance?
    - directional tires rotating backwards?
    - rust on the mounting face(s)?
    - flat spots in your tires?
    - recheck the torque of your lugs

    Doesn't seem safe to drive.

    Swap back your winter wheels/tires and see if the problem persists.
    Also how were they stored through the winter? Do unloaded tires flat spot?

  3. #7253
    Join Date
    May 2016
    Location
    Chicago, IL
    Posts
    749
    Quote Originally Posted by Will View Post
    Just some guesses off the top of my head:
    - wheel / tire balance?
    - directional tires rotating backwards?
    - rust on the mounting face(s)?
    - flat spots in your tires?
    - recheck the torque of your lugs

    Doesn't seem safe to drive.

    Swap back your winter wheels/tires and see if the problem persists.
    Appreciate the ideas, it might just be that they're out of balance which is what im hoping for. style 135's so nondirectional, gone over every bolt twice now and surfaces were clean but I didn't check for flat spots so I'll have to take a gander tomorrow. Probably a good idea to just put the winters back on, though

    Quote Originally Posted by ZHPizza View Post
    Also how were they stored through the winter? Do unloaded tires flat spot?
    Not proud of it but they were stacked up in my driveway with a tarp and bungee cord to cover. They all still hold air though so I'm hoping the winter didn't damage them.

    2004 BMW 330i TiAg ZHP/// 6MT(purchased from forum 6/06/16);
    KONI Yellows | Akebono Brake Pads | ECIS cold air intake system;
    Hotchkis Sport sway bar | ECS Tuning Carbon Fiber front strut brace
    Vibrant Performance Muffler | Coby Wheel Tri-Stitch steering wheel & shift boot
    Michelin PSS | Blizzak WS-80

  4. #7254
    Join Date
    Nov 2013
    Location
    Bay Area
    Posts
    2,947
    I notice my PSS tires get a flat spot if they sit for 2 weeks. It usually takes a decent amount of miles (40?) to round out again.

    A harder tire might take longer to round back out. Itís just a guess.


    His: 2005 330 ZHP Imola Red - 1995 NA Miata
    Hers: 2004 330i ZSP
    2004 325 M56 Steel Blue Metallic - Sold
    Stephen's DD & AutoX/HPDE Build Thread
    Stewart WP - Z4M LCAB - M3 trans/motor mounts - DICE MediageBridge Duo - ARC-8 17x8.5"
    DrVANOS - Mason Engineering Race Strut Bar - E30 Exp. Cap - Custom Black+Beige Interior - M3 Seats
    Bilstein PSS10 - Turner Sway Bars 27/21 - ECST RTAB Limiters - R.E. RSM


  5. #7255
    Join Date
    Mar 2011
    Location
    Independence KY
    Posts
    2,201
    Any recommendations on oil? I’ve used mobil1 full synthetic in the past but wondering what may be out there that’s potentially better
    2005 BMW 330i ZHP - BMWP brakes/intake/strut bar/shifter, Coby wraps interior, BBS CHs, Eagle Eye LED tails, GC coilovers, 2x2 CF MTECH2 diffuser, Sprint Booster/sport button mod, 4.5 LCM, Xtrons 9inch HU, BSW stg1, dynamat, M3 sedan dead pedal
    2017 Toyota 4Runner TRD Pro Cement Gray - Innovativ HIDs, OE LED fogs, CanvasBack, URD, black tails, K&N, AJT



  6. #7256
    Join Date
    Jan 2013
    Location
    Houston
    Posts
    1,602
    Quote Originally Posted by BADCLOWN View Post
    Any recommendations on oil? Iíve used mobil1 full synthetic in the past but wondering what may be out there thatís potentially better
    Wondering the same

    Sent from my SM-G988U using Tapatalk

  7. #7257
    Join Date
    Nov 2012
    Location
    22841
    Posts
    9,468
    Liqui moly from fcpeuro.

    Sent from my Pixel 2 XL using Tapatalk

    His - 2004 Imola Red / Alcantara 330i | 6MT | ZHP |

    Her's - 2005 Black Sapphire Metallic / Black Leather 330i | 6MT | ZHP |

  8. #7258
    Join Date
    Dec 2019
    Location
    Burlington, NC
    Posts
    100
    I second Liqui Moly.

    I've also been happy with Pennzoil + BG MOA 110 though.
    330i Base | Mysticblau | Slicktop | 6MT

  9. #7259
    Brotella is good too

    Sent from my Pixel 2 XL using Tapatalk
    -Corey

    2003 Blue ZHP Sedan @ 210k
    Dead due to damaged valve. We will save her soul for future use, but the body will go to car heaven...or another owner...who may or may not turn her into a race car...

  10. #7260
    Join Date
    May 2016
    Location
    Chicago, IL
    Posts
    749
    Quote Originally Posted by stephenkirsh View Post
    I notice my PSS tires get a flat spot if they sit for 2 weeks. It usually takes a decent amount of miles (40?) to round out again.

    A harder tire might take longer to round back out. It’s just a guess.
    Appreciate the input, will definitely monitor over the next couple weeks seeing that I don't get out to drive as much anymore, might take a little longer to even out

    2004 BMW 330i TiAg ZHP/// 6MT(purchased from forum 6/06/16);
    KONI Yellows | Akebono Brake Pads | ECIS cold air intake system;
    Hotchkis Sport sway bar | ECS Tuning Carbon Fiber front strut brace
    Vibrant Performance Muffler | Coby Wheel Tri-Stitch steering wheel & shift boot
    Michelin PSS | Blizzak WS-80

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