aja540i

Pics in the showroom section, something will have to go seriously wrong for me to end up parting out the 540, its enough of a struggle coming to terms with selling it, let alone breaking it up!

Not if you disable the sensor.....

just fitted 2 brand new grilles, will be taking some more photos over the weekend and putting on TM, not really in a rush to sell it now until the M5 is back on the road...

until someone reaches in and nicks your wallet / phone / gum etc

http://www.trademe.co.nz/motors/used-cars/bmw/auction-931100277.htm

Sure can......You cant see them now but when i first opened it there were 2 tiny blobs of what looked like solder stuck to the outside of the semiconductor the pen is pointing at, also the coating on the board is a lot darker around there than the rest of the board.

I get trade price from BMW anyway, and the best price I have seen online is about $750 us, so no cheaper than getting locally.

Intake in general is very clean, and that Wurth stuff works a lot better if the car is running when you use it! I will probably go a bit OCD with this and get all the injectors cleaned and tested while im at it, why not tempt fate! I just have to sell the 540i to pay for it all!

Side note: turns out the battery in my car is the original from 07, so i was on borrowed time with that as well!!

Maybe deep down inside he doesnt want to sell it, i can understand that!

I have been thinking and i have a theory about why these units fail like they do.... In my old school e36 (with an accelerator cable) as the throttle butterfly starts to gather a bit of oil and scum it starts to bind slightly when fully closed and it takes a bit of a kick on the go pedal to free it up and get it moving... Now imagine 5 sticking butterflies and you can see why the motor trying to move them starts to draw more current than the driver board was designed to handle and poof the magic smoke gets out!!! It is my intention to remove and thorougly clean all 10 ITBs, i believe this will extend the lifespan of the actuators quite considerably.(at least i hope it will)

I dont think BMW have much of an opinion about this, the unit has worked far longer than the warranty period of the car so its hard to see why they would care...they are in it to make money after all. They did seem quite happy to sell me 2 new units

Update, got the offending actuator out this afternoon, and opened it up....gears are worn as expected, but it also looks like one of the semiconductors on the board has gotten a bit hot under the collar so i will be buying at least one brand new unit.

So, i can get a set of replacement gears for about $250US, or a replacement actuator for about $1500NZ new from BMW. Problem is replacing the gears only seems to fix about 75% of failed units, the rest die electrically, and there doesnt seem to be a reliable way to test the circuit outside of the car, so the replacement gears is a bit of a gamble. I think i will order 1 new actuator and a set of gears so i know i can get back on the road. On the plus side it looks fairly easy to get the units out so i have a good excuse to get elbows deep in my V10!!

I have a roll of that black sticky crap that goes around taillights but doesnt set, you can pull it apart and push it back together, might work for this.

Its not because the adjuster selector switch is in the wrong position? It will only dip when the switch is on one side , not sure which side it is though

Not sure I have enough tape!

Have to disconnect the battery to get actuators out so will probably do at the same time.

Sooo, went to move the M5 this morning and when i started it the dash and hud lit up some some kind of demented christmas tree of doom! Engine in limp mode, reduced power, dsc, start assist, everything with a 3 letter name not working!! Had to move it onto the lawn so i could get the trusty old e39 out, and it felt like the brakes were on, no power, didnt want to rev etc. After i had a little cry i did some internetting and plugged in the bluetooth dongle to read any fault codes, and it looks like probably a dead throttle body actuator, so i am going to have to pull them both out and perform autopsies on them. Has anyone on here done this?

Nah, you probably wont like the sound of it, the M5 will ALWAYS sound better!

I have just ordered the new grilles for this, apparently one side is available in NZ, the other one has to come from Germany, even the guy at BMW was laughing!

Apparently if you start mucking around with the ecu and turbos etc, these will leave the M5 behind.

No sorry, sold it.

Nice.

If you pay for gas and a flight home, i'll bring it down to you, no problem!