Subject: Re: Bosch spark plugs - WR9LS vs. W8LCR Author: elbiera : member since May, 2005 : 63 posts Posted on: 2008-02-04 12:46:52

Spark Plug guide for BMW's

A BMW dealer installed the W8LCR's in my car at time of an Inspection II, a few years back. Eventually my car started to smell REAL bad (sulfur), than started running poorly (bad gas mileage), very inefficient. When it got cold out (below 35-40 degrees), the car stopped working altogether. I failed the local emission tests and the BMW dealer had put their hands up in the air over it. Said I probably needed a new brain-box for the car.

When I finally got around to removing the plugs (I mean, why would I check those, they were just replaced?!), I noticed the W8's. I tested them. 3 of the six flat-lined, open resistance. I replaced all 6 with the stock W9's, the bitch started right up and hasn't coughed since. I've boycotted the dealer ever since, but the damage was done. I've heard of many dealers doing this in my rummaging online, and don't know if it was just a bad batch of plugs, but I agree with the masses herein and will stick with stock; although Vern makes a compelling argument as well.


Chicagoan 9/85 735iA zobelbraun met 140k

• Spark Plugs - elbiera 2008-01-31 08:49:50 (133 views)
  • Open mouth, insert sparkplug foot... - Vern 2008-02-03 02:27:13 (127 views)
    • Re: Open mouth, insert sparkplug foot... - elbiera 2008-02-04 13:54:20 (77 views)
      • I think any of the online distributors can get you a set of - Vern 2008-02-04 16:43:16 (70 views)
        • Re: I think any of the online distributors can get you a set of - Area52 2008-02-04 19:22:38 (62 views)
    • Good to see you back here Vern. Hope all is well with Josh's car and you are on - Draleu 2008-02-03 13:24:33 (65 views)
  • NGK ZGR5A - ///ARINUTS... 2008-02-02 14:00:52 (168 views)
  • What is this 'spark plug' that you speak of? (nt) - vance 2008-02-02 07:26:06 (80 views)
  • Bosch spark plugs - WR9LS vs. W8LCR - 2ck 2008-02-01 16:05:56 (164 views)
    • Re: Bosch spark plugs - WR9LS vs. W8LCR (url) - elbiera 2008-02-04 12:46:52 (129 views)
      • Do you there's there was any long-term damage to your car? (nt) - 2ck 2008-02-04 13:37:32 (53 views)
        • Re: Do you there's there was any long-term damage to your car? - elbiera 2008-02-04 13:47:52 (63 views)
  • Stay with stock, nothing more nothing less, otherwise you are wasting your time. (nt) - ejonesie22 2008-01-31 17:05:27 (74 views)
  • We as a group do not use other plugs except the - kff 2008-01-31 11:29:56 (122 views)
    • Every Forum Ive been on..LOVES to Debate this topic.... - wabiker 2008-01-31 20:59:27 (84 views)
      • Re: Every Forum Ive been on..LOVES to Debate this topic.... - elbiera 2008-02-04 13:49:50 (57 views)
      • So we are a different forum. no debate, just three saying go stock. (nt) - kff 2008-01-31 22:46:03 (69 views)
        • I guess it sounds like I was implying *this* Forum too... I wasnt . (nt) - wabiker 2008-01-31 23:32:34 (66 views)