Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
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  1. #1
    Join Date
    Jul 2011
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    Houston, TX
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    Ignition Coils: At What Mileage to Replace?

    Alright so my next major service is the Vanos/VCG/Plugs for my ZHP. i have only to order the Dr Vanos unit to complete all tools/parts associated. however, i'm wondering at ~60k miles if ignition coil replacement is also necessary. i realize that the work involved is redundant so the labor to replace is not my concern, only the cost for the parts.

    so what mileage should/have you guys replace(d) your coils?

    also, i've been looking at OEM v Bav Auto "High Performance" Ignition Coils which they claim increase performance/hp. anyone used these and seen any difference? i'm highly skeptical what if any performance gains can come from coils.
    --Wes--

    04 330i ZHP Oxford Green/Natural Brown
    04 330Ci ZHP Silvergrey/Alcantara (RIP)

  2. #2
    Join Date
    Jan 1970
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    Liberty Township, OH
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    Imo, those are an "only as needed" item in my book. I may buy some performance coils at 200k miles.

    Sent from Williamsburg, VA USA
    Call Me Dane l 2/2004 330i ZHP l 18x8 ET45 BBS CK's wrapped with Michelin Pilot Sport AS3+ @ 245-40-18 l KW V1 Coilovers in front l KW V1 springs w/ Bilstein B8 dampeners in rear l BMW Performance Rotors l UUC StrutBarbarian l Racing Dynamics Rear Strut Bar l Jim Conforti Shark Injector l Light Birch Interior Trim l Bimmian Celly Mount l M3 Trunk Mat l l e90 Performance E-Brake & Shift Knob l M3 Tri-Stitched Boots l AL Headlight Retrofit with ZKW Lenses l CobyWheel Wrap w/M3 Stitching l LCM sw 4.5 triple blink and rear fogs l Maple Interior Trim

  3. #3
    Join Date
    Jan 1970
    Location
    32.8 N, 117.3 W
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    performance coils and all that upgraded stuff is not necessary unless you're running FI

  4. #4
    Join Date
    Jan 1970
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    Quote Originally Posted by Hermes View Post
    performance coils and all that upgraded stuff is not necessary unless you're running FI
    Nor are BBS rims.... ;o)

    Sent from Williamsburg, VA USA
    Call Me Dane l 2/2004 330i ZHP l 18x8 ET45 BBS CK's wrapped with Michelin Pilot Sport AS3+ @ 245-40-18 l KW V1 Coilovers in front l KW V1 springs w/ Bilstein B8 dampeners in rear l BMW Performance Rotors l UUC StrutBarbarian l Racing Dynamics Rear Strut Bar l Jim Conforti Shark Injector l Light Birch Interior Trim l Bimmian Celly Mount l M3 Trunk Mat l l e90 Performance E-Brake & Shift Knob l M3 Tri-Stitched Boots l AL Headlight Retrofit with ZKW Lenses l CobyWheel Wrap w/M3 Stitching l LCM sw 4.5 triple blink and rear fogs l Maple Interior Trim

  5. #5
    Join Date
    Jan 1970
    Location
    32.8 N, 117.3 W
    Posts
    7,640
    you know what I meant...

    basically all the ignition upgrades are not necessary on a relatively stock engine, Justin will be able to explain better when he sees this thread

  6. #6
    Join Date
    Jan 1970
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    Liberty Township, OH
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    Quote Originally Posted by Hermes View Post
    you know what I meant...

    basically all the ignition upgrades are not necessary on a relatively stock engine, Justin will be able to explain better when he sees this thread
    Yup. Agree. Would having them be a step in the wrong direction? I mean...is there a negative other than $$$.

    Sent from Williamsburg, VA USA
    Call Me Dane l 2/2004 330i ZHP l 18x8 ET45 BBS CK's wrapped with Michelin Pilot Sport AS3+ @ 245-40-18 l KW V1 Coilovers in front l KW V1 springs w/ Bilstein B8 dampeners in rear l BMW Performance Rotors l UUC StrutBarbarian l Racing Dynamics Rear Strut Bar l Jim Conforti Shark Injector l Light Birch Interior Trim l Bimmian Celly Mount l M3 Trunk Mat l l e90 Performance E-Brake & Shift Knob l M3 Tri-Stitched Boots l AL Headlight Retrofit with ZKW Lenses l CobyWheel Wrap w/M3 Stitching l LCM sw 4.5 triple blink and rear fogs l Maple Interior Trim

  7. #7
    Join Date
    Jan 1970
    Location
    32.8 N, 117.3 W
    Posts
    7,640
    no, just $$$

  8. #8
    Join Date
    Jan 1970
    Location
    Cleveland/Dayton
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    If you replace make sure they are Bosch OEM.

    I keep one in my trunk. I blew a coil at 27k miles. Replace as needed. You'll know when it goes out

    Sent from my DROID X2 using Tapatalk 2


    Project STX: TCKline Racing l APEX l Vorshlag l Eibach l Hawk l Schroth l BMW Performance

  9. #9
    Join Date
    Jul 2011
    Location
    Houston, TX
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    so this is one of those rare BMW engine parts that truly is "wait until it breaks before replacing"? good to know.
    --Wes--

    04 330i ZHP Oxford Green/Natural Brown
    04 330Ci ZHP Silvergrey/Alcantara (RIP)

  10. #10
    Join Date
    Jan 1970
    Location
    Liberty Township, OH
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    Quote Originally Posted by webster View Post
    so this is one of those rare BMW engine parts that truly is "wait until it breaks before replacing"? good to know.
    Heh....nice. kinda like a fender.

    Sent from Williamsburg, VA USA
    Call Me Dane l 2/2004 330i ZHP l 18x8 ET45 BBS CK's wrapped with Michelin Pilot Sport AS3+ @ 245-40-18 l KW V1 Coilovers in front l KW V1 springs w/ Bilstein B8 dampeners in rear l BMW Performance Rotors l UUC StrutBarbarian l Racing Dynamics Rear Strut Bar l Jim Conforti Shark Injector l Light Birch Interior Trim l Bimmian Celly Mount l M3 Trunk Mat l l e90 Performance E-Brake & Shift Knob l M3 Tri-Stitched Boots l AL Headlight Retrofit with ZKW Lenses l CobyWheel Wrap w/M3 Stitching l LCM sw 4.5 triple blink and rear fogs l Maple Interior Trim

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