i finally got it. i started a thread before about this asking if anyone else had done it, but i couldnt get much info..
SO, hopefully this will make it into the archives, incase anyone else is considering or has done this.
ok, as many of you know, the s5 gauges have a different look and style, and also produce less glare than the s4s.
when you goto install it, the harness from an s4 plugs right in, but the problems is that some of the lights are in the wrong order. ie - parking brake = low fuel light.
after searching through the FSMs and wiring diagrams, i came up with this.
take note of the legend to the left, and orient yourself by looking at the rough sketch to the right of how the pins are arranged on the series 4 and series 5.
btw - the spots in the plug i left blank are either for grounds or power for the clock. you are only concerned about the ones i have labelled
you will be rearranging the wiring on the harness. the pins pop out, but it takes a tiny tiny screwdriver to push the tab out of the way that locks each wire into place. it's hard to explain, but youll understand what i mean when you goto do it.
do ONE AT A TIME, DO NOT
REMOVE ALL OF THEM AT ONCE AND START FRESH.
for example, we see in the picture that where the signal for low fuel
, it is correct when connected to an s4 gauge. looking at the s5 arrangement, we see a low fuel signal
will activate the low washer indicator light
. this is obviously wrong. so, remove the low fuel signal wire
from the harness, and then figure out where it is suppost to be. according to the diagram, on the s5, it must go to the left one space, and down one space. now
orienting yourself back on the s4 picture, we see that the low fuel signal wire
belongs in the parking brake switch
place in the harness. so, remove it, and insert the low fuel switch
in its place.
there. now you have one finished, and now deal with the parking brake switch the same way you dealt with the gas light switch as above posted.
(cliff notes of above paragraph)
remove low fuel signal wire.
see diagram for where it should be to work on the s5 cluster.
notice it is where the parking brake switch wire is currently.
remove park brake switch wire, insert low fuel signal wire.
now deal with park brake switch as noted above (one at a time!), until complete.
the way im describing it sounds a little confusing, but once your going at it, you will understand what i mean.
rewiring the harness took me 10 minutes
and i had no problems, everyhting worked perfectly.
this is probably the easiest, fastest, and cheapest (depending on where you got the warning cluster and trim from - i got it for 5 bucks at the scrappers) mod to do. to all the FC guru's sitting in your car, it's also one of the most noticeable.
if you SMELL anything when you turn the key on, see any smoke, or anything fishy coming from the harness you just worked on, IMMEDIATELY KEY THE CAR OFF and re-evaluate your work. you may have a mixed up wire and you may start a fire.
hope this helps anyone out there curious about switching over.
btw - forgot to include these (conisdering the search doesnt allow anything less than 3 characters and "s4" is less than 3 )
keywords for the forums search engine:
series4 series5 series 4 series 5 warning light clock cluster idiot gauge unit