GO FISHING, use SLABSAUCE Fishing Attractant
Page 1 of 2 12 LastLast
Results 1 to 10 of 13

Thread: hey guys, how you change the spark plugs in a 525i?

  1. #1
    Join Date
    Oct 2005
    Location
    Texas
    Posts
    104

    Default hey guys, how you change the spark plugs in a 525i?

    anyone? thanks

  2. #2
    Join Date
    Feb 2004
    Posts
    169

  3. #3
    Join Date
    Dec 2005
    Location
    Independence Oregon USA - pop. 6000
    Posts
    296

    Default

    That's kind of a generic set of directions. I'll start and then someone who really knows how can correct the egregious errors please. Pry up the round caps on the plastic valve cover cover. Remove the two 10mm nuts and the oil cap. Remove plastic cover. You are now looking at the individual coils sitting on top of the plugs, each is held down with a couple 10mm nuts. Note there are also several ground straps - don't forget where they go. I have only pulled one coil on my car so far - it lifted up easily off of the sparkplug, which is buried deep in the valve cover kinda like an M42 318 engine. You are going to need the long sparkplug tool in your car's tool kit or a plug wrench socket with a rubber grabber inside the socket to help you lift the plug out of the hole. Watch for pooled up oil around the plugs, sign of a failed valve cover gasket, and something that (on early E36s at least) can kill individual coils. You are dealing with plugs that have been in place for a long time: be careful, go back and forth, don't just hog that plug out of the hole taking the threads out of the head with it. Also be careful on installation - no crossthreading allowed - if it doesn't feel right, back it out and try it again.
    Tom Walrod

  4. #4
    Join Date
    Oct 2005
    Location
    TO, CA, NA, EA
    Posts
    433

    Default

    That sounded like M60 procedure. I didn't know the 525 had individual coils. Anywho, that sounds pretty much like what I did on my car - complete with oil pool, failing valve cover gasket et al.

  5. #5
    Join Date
    Dec 2005
    Location
    Independence Oregon USA - pop. 6000
    Posts
    296

    Default

    Individual coils are the case on my '93 525iT - first I've ever dealt with - hopefully the proceedure with multiple coils matches for the original poster's '95 525. Didn't know the V8 was the same: sounds like BMW decided that one style worked for all!
    Tom

  6. #6
    Join Date
    Dec 2003
    Location
    PA
    Posts
    5,403

    Default

    Quote Originally Posted by calmloki
    Individual coils are the case on my '93 525iT - first I've ever dealt with - hopefully the proceedure with multiple coils matches for the original poster's '95 525. Didn't know the V8 was the same: sounds like BMW decided that one style worked for all!
    Tom
    all 92+ 525 will have 6 coils. Its not so much a "style" as a "technology". No point in using a distributor and spark plug wires when COP technology was available.

  7. #7
    Join Date
    Jun 2004
    Location
    Kentucky
    Posts
    648

    Default

    Quote Originally Posted by Jon K
    all 92+ 525 will have 6 coils. Its not so much a "style" as a "technology". No point in using a distributor and spark plug wires when COP technology was available.
    All m50 525s had individual coils ... so 91 included.

  8. #8
    Join Date
    Dec 2003
    Location
    PA
    Posts
    5,403

    Default

    Quote Originally Posted by Torque
    All m50 525s had individual coils ... so 91 included.

    I know that all M50 are COP, but not all 91 are M50.

  9. #9
    Join Date
    Dec 2005
    Location
    Independence Oregon USA - pop. 6000
    Posts
    296

    Default

    Here in the states I think the '91 525 is the old M20 2.5. Not familiar with the acronym COP.
    Tom

  10. #10
    Join Date
    Jun 2005
    Location
    Cleveland, OH
    Posts
    1,279

    Default

    Quote Originally Posted by calmloki
    COP.
    Tom
    Coil Over Plug
    If it cannot be fixed by the dremel or ducktape.. get out the sledge...
    --------------------------------------------------------------------
    I miss my e34

Page 1 of 2 12 LastLast

Similar Threads

  1. Spark Plugs !
    By Roderick in forum 5 Series BMW
    Replies: 12
    Last Post: 07-11-2007, 08:34 AM
  2. Spark Plugs
    By Alexlind123 in forum 5 Series BMW
    Replies: 3
    Last Post: 12-20-2005, 05:25 PM
  3. How often should you change spark plugs?
    By Al Gray in forum 5 Series BMW
    Replies: 29
    Last Post: 08-07-2005, 02:47 PM
  4. do i need to change my spark plugs or not???....
    By ryan roopnarine in forum 5 Series BMW
    Replies: 1
    Last Post: 04-14-2004, 01:53 PM
  5. spark plugs
    By Unregistered in forum 5 Series BMW
    Replies: 2
    Last Post: 04-04-2004, 12:32 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •