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    #1

    Brake check light on (dash warning light)

    Hi,

    So I have this dreaded problem. I am sure some of you already came across this... The little warning indicator is constantly on in my dash. This is the indicator for pad wear in the cluster (318i model).

    Pads are new and the sensors are also replaced. I read that the brake light switch (the one that is on the brake pedal) can also cause this issue. I am sure the switch was not replaced on this car since 1991. So I will do that...

    BUT and here is my dilemma, I cant find the right part number to be honest. Would any one of you guys have information on this?

    Thanks in advance...
    Originally Posted by mpowerful
    Ive been looking at this thread ever since it got posted and every time I do my peepee tingles a little.
    - - - - - - - - - - - - - - - - - - - - - - - -
    1991 Alpinweiß Sedan.... mah mistress. <-click :pimp:
    Tags: None
    #2
    Realoem is pretty awesome for finding part numbers. Looks like Number 6 in the below link, but you need to confirm:

    Just a moment...
    http://realoem.com/bmw/showparts.do?model=AF93&mospid=47305&btnr=35_0183&hg=35&fg=05


    Part number: 61318360420

    I'd be surprised if this was your issue, but it's worth a shot I suppose since it's so cheap. Most likely it's a bad capacitor on the SI board.

    Comment

      #3
      the stop light switch is not your problem. chances are it's the solder on the cluster. with age it gets brittle and cracks. needs to be re flowed.
      sigpic

      Comment

        #4
        Originally posted by long tall eta View Post
        the stop light switch is not your problem. chances are it's the solder on the cluster. with age it gets brittle and cracks. needs to be re flowed.

        Good point, you're right, could be lucky and just needs reflowed.

        Comment

          #5
          Thanks for the realoem link.

          My SI board has the first 2 green lights out as well. So I wouldn't be surprised if this too is connection related. I'll take it out tomorrow and check it out. The reason why I guessed the stop light switch is because I found a few threads, through different BMW forums, on the interw3bz pointing to it.

          My cluster may need refurbishing then, as the water temp gauge moves actively as well... This too points to connection problems. It was bound to happen...

          Thanks for the tips
          Last edited by partner103; 03-21-2015, 05:17 AM.
          Originally Posted by mpowerful
          Ive been looking at this thread ever since it got posted and every time I do my peepee tingles a little.
          - - - - - - - - - - - - - - - - - - - - - - - -
          1991 Alpinweiß Sedan.... mah mistress. <-click :pimp:

          Comment

            #6
            There is a large resistor on the back of the instrument cluster board that sticks out pretty far. Like many things it vibrates from the vehicle's motion. Over time the solder joints crack. Reflowing the solder joints for it and adding a dab of silicone sealant as support have fixed the brake warning light on two clusters for me.
            Or send your cluster to Greg at Bavarian Restoration for refurb. Also
            might as well replace your SI light board with one of the shift light indicators from E30IG sold on this forum.

            Comment

              #7
              Originally posted by MoreMayhem View Post
              send your cluster to Greg at Bavarian Restoration for refurb.
              Yep, had a PM exchange with him related to my SI light.
              Originally Posted by mpowerful
              Ive been looking at this thread ever since it got posted and every time I do my peepee tingles a little.
              - - - - - - - - - - - - - - - - - - - - - - - -
              1991 Alpinweiß Sedan.... mah mistress. <-click :pimp:

              Comment

                #8
                The temp gauge issue could be a loose ground screw on the back, as well. Can't improper brake light bulbs activate the brake check light?
                Interested in vintage cars? Ever thought about racing one? Info, photos, videos, and more can be found at www.michaelsvintageracing.com!

                Elva Courier build thread here!

                Comment

                  #9
                  I will report back on this.

                  The ground screw on the back is tight. I will check the bulbs as well, as I read about that potential issue.

                  Also found this: "Turn the key to the 2nd position (Just prior to starting) and wait till the brake warning light turns off. Once it turns off, turn the car off. Then, turn it back on to make sure the light remains off. You're done. " here: http://www.bimmerforums.com/forum/sh...ight-stayed-on

                  And this
                  "After replacing your pads and wear sensors, the dash warning will still be illuminated. However, you do not need to go to your BMW dealer to have the warning message reset. To reset the brake warning, turn the ignition key to the run position, but do not start the car. After about one minute, the brake pad warning will reset. " here: http://www.m3forum.net/m3forum/showthread.php?t=183698

                  Will give this a try as well.

                  And if all of that fails, cluster out and start chasing the gremlins in there.
                  Originally Posted by mpowerful
                  Ive been looking at this thread ever since it got posted and every time I do my peepee tingles a little.
                  - - - - - - - - - - - - - - - - - - - - - - - -
                  1991 Alpinweiß Sedan.... mah mistress. <-click :pimp:

                  Comment

                    #10
                    OK, so the suggestions to reset the brake pad warning lights (the ones above) didn't work. Cluster is out, so I'll get to it later on today.

                    I am taking the son and wife out now...
                    Originally Posted by mpowerful
                    Ive been looking at this thread ever since it got posted and every time I do my peepee tingles a little.
                    - - - - - - - - - - - - - - - - - - - - - - - -
                    1991 Alpinweiß Sedan.... mah mistress. <-click :pimp:

                    Comment

                      #11
                      This might be really stupid, I know you state that the pads and sensors are new and it must be obvious that the brake fluid level is correct, but is the brake fluid level really correct?

                      When, on my car the brake fluid level was low, the warning light would come on. I can't remember if it is the same light that you say is staying on on your car. Double check that brake fluid level before digging into your cluster.
                      1990 325i
                      2004 330i Individual 6-speed
                      sigpic


                      Comment

                        #12
                        OH CRAP
                        Please disregard my previous post. After I posted, I realized that the US clusters have the warning lights in words and not in pictures.

                        My Bad, Really sorry. Should have checked before posting.
                        1990 325i
                        2004 330i Individual 6-speed
                        sigpic


                        Comment

                          #13
                          Checked the fluid level... looks good. Looking at the cluster now. Seems okay. Nothing is burnt, messed up. At this point I am out of ideas.
                          Originally Posted by mpowerful
                          Ive been looking at this thread ever since it got posted and every time I do my peepee tingles a little.
                          - - - - - - - - - - - - - - - - - - - - - - - -
                          1991 Alpinweiß Sedan.... mah mistress. <-click :pimp:

                          Comment

                            #14
                            I may change the sensor first, but if that doesnt solve it, the bulb is coming out
                            This symbol/bulb is only for pad wear anyway.
                            Last edited by partner103; 03-21-2015, 07:11 PM.
                            Originally Posted by mpowerful
                            Ive been looking at this thread ever since it got posted and every time I do my peepee tingles a little.
                            - - - - - - - - - - - - - - - - - - - - - - - -
                            1991 Alpinweiß Sedan.... mah mistress. <-click :pimp:

                            Comment

                              #15
                              have the solder reflowed.
                              sigpic

                              Comment

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