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-   -   M3 e46 wont start (http://forum.e46fanatics.com/showthread.php?t=939216)

Aioros_M_class 08-17-2012 09:19 PM

M3 e46 wont start
hello guys here is the thing when i was leaving to do some shores with my car when i was about to started it i heard a loud click in front of the engine, well since then i thought it might be the starter engine but it works very good, then i checked the fuses in the glovebox and the one in the engine bay but neither of this things that i checked seems to solves my problems, i dont know if the key is the problem because when the ignition is on the fuel pump works can you help me dealing with this problem

llcoolj0n 08-17-2012 09:25 PM

Only a click? try tapping the key a few then try to start it. See if that works!

Aioros_M_class 08-17-2012 09:31 PM


Originally Posted by llcoolj0n (Post 14661039)
Only a click? try tapping the key a few then try to start it. See if that works!

already did and nothing

LSM3 08-17-2012 09:56 PM

Put your interior light on and turn the key again. If it dims, then its your battery - get a new one.

Aioros_M_class 08-17-2012 10:00 PM


Originally Posted by LSM3 (Post 14661092)
Put your interior light on and turn the key again. If it dims, then its your battery - get a new one.

I already checked that the battery is brand new I bought it like a month ago and I also tested so the voltage is good, the fuel pump is also working, but when I put the key in the ignition position nothing happens the only thing I hear is the fuel pump working besides that nothing happens:hmm::hmm::hmm::(:(:(:(:(

MachRc 08-18-2012 09:57 AM

my problem was a clutch sensor when there was no click or sign of the starter. Ive also one time one the m3 had a bad BST cable.

But narrow it down until you have the starter to replace.

Aioros_M_class 08-22-2012 03:15 PM

ok guys here is the following things that i have done:
Fuel pump working
Battery is new
Fuses checked and working
starter motor working

the only two things left to test ews and the clutch switch

$ilent ///M 08-22-2012 09:36 PM

How did you verify the starter motor is good.

Aioros_M_class 08-23-2012 11:40 AM

well I took out the starter motor and tested it with the battery

MachRc 08-23-2012 08:36 PM

If its not the things you listed and the clutch switch was bypassed what else can it be? So strange. I never hear of the ews or immobilizer problems that meds these cars up.

Aioros_M_class 08-23-2012 10:24 PM

and what if i have problems with my key how do i know if my keys are giving me the problem there is a way of testing it, the battery in the key only works for the remote or for the chip inside the key im running out of options here

$ilent ///M 08-23-2012 10:36 PM

is it a crank no start problem when you try to start do you here anything from the starter?

Aioros_M_class 08-23-2012 10:47 PM

the starter doesn't even engage the only thing i can hear is the fuel pump working nothing else, i dont know if the key maybe the problem because i only have one key

$ilent ///M 08-23-2012 10:56 PM

did you check the fuses and relays behind the glove box

Aioros_M_class 08-23-2012 11:00 PM

yeap all of that has been checked battery, bst, fuses, relays, fuel pump, fuses close to the ecu, starter motor

$ilent ///M 08-23-2012 11:02 PM

i heard a lot of the threads saying the ignition switch fails often

Aioros_M_class 08-23-2012 11:08 PM

i dont think is the ignition switch because when i put the key in ignition i can hear the fuel pump working

$ilent ///M 08-24-2012 08:34 AM

have you tried checking signal/connections to the starter (voltage drop test)

tmiked 08-24-2012 02:40 PM

Its the starter.

They fail in one specific position. If you remove it, it will work.

MaddHatter00 08-24-2012 04:12 PM

Mine did the same thing. It would start in the morning, I would drive it to temp then it wouldn't start again till it cooled off. I replaced the starter and has been perfect ever since. Get a new starter. And problem should be solved.

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