M3 e46 wont start - Page 2

MachRc · 09-02-2012, 09:20 AM

how are you Aioros! Been worried!

dmax · 09-02-2012, 09:36 AM

Go back to the battery, OP...even though it's new and even though you have the voltage you want to see, that doesn't mean you have the amperage to start your car. It could test fine out of the car, but you know, it's not really pushing anything out of the car...no load on it.

Try jump starting your car...if it starts, then drive for 20-30 mins. on highway. Keep the donor car revving a little and keep them hooked up for 5 mins. or so. Also, double check that your starter cable/connections are good (particularly under the + terminal under hood).

Also, do check that bst...check that battery cables are tight...wiggle them and pull up on them...we've had many cases of that issue happening.

If you've been making a lot of short trips and no long ones, that's why the battery could be new but otherwise drained.

Eliminate battery for sure before moving onto other things.

Clutch switch also, as has been mentioned. Do you have a clutch stop? Remove it.

KHUT46M3 · 10-01-2012, 10:36 AM

Ugh, same problem on my 03. Tapped on the starter nothing. Fuses all ok. I read a thread that said re-sync your key. I bought the car and only got one key so I don't want to cut it open to try to even attempt to replace the battery. How would I check the clutch switch to see if that is my problem??? Not replacing my starter as a last resort if nothing works

any new insight would be greatly appreciated

Aioros_M_class · 10-01-2012, 12:08 PM

Quote:

Originally Posted by KHUT46M3

Ugh, same problem on my 03. Tapped on the starter nothing. Fuses all ok. I read a thread that said re-sync your key. I bought the car and only got one key so I don't want to cut it open to try to even attempt to replace the battery. How would I check the clutch switch to see if that is my problem??? Not replacing my starter as a last resort if nothing works

any new insight would be greatly appreciated

well my problem was the ews so i changed that and did a resync between the ews and the dme and presto that was it, try scan it so you could see the real problem any doubts pm

09-02-2012, 09:20 AM	#21
MachRc "Have some candy!!" Join Date: Sep 2002 Location: City of Angels Posts: 6,209 My Ride: 2003 Technik S1 M3 View My Garage	how are you Aioros! Been worried! __________________ Bimmerfest 2013 Photos here!!! "The road was miles ahead..It fell away, now I'm at thee end... Just a sky, the fall, and you..I got holes in my para~chute...... Then-you-say,' never gonna find all the answers~ answers will find you..Don't know how I'll feel tomorrow~ Don't know the truth. But we can lie,.. lie.., lie.., lie here together..lie..,lie..,lie..,lie here together..'"

09-02-2012, 09:36 AM	#22
dmax Stay stock my friends! Join Date: Aug 2006 Location: Unit I Posts: 21,164 My Ride: '99 328i 1.03809 mu View My Garage	Go back to the battery, OP...even though it's new and even though you have the voltage you want to see, that doesn't mean you have the amperage to start your car. It could test fine out of the car, but you know, it's not really pushing anything out of the car...no load on it. Try jump starting your car...if it starts, then drive for 20-30 mins. on highway. Keep the donor car revving a little and keep them hooked up for 5 mins. or so. Also, double check that your starter cable/connections are good (particularly under the + terminal under hood). Also, do check that bst...check that battery cables are tight...wiggle them and pull up on them...we've had many cases of that issue happening. If you've been making a lot of short trips and no long ones, that's why the battery could be new but otherwise drained. Eliminate battery for sure before moving onto other things. Clutch switch also, as has been mentioned. Do you have a clutch stop? Remove it. __________________ This huge woman, like 400 pounds comes up to me and says, "Doug, I would rock your world." I replied, "but I need to breathe." The girl in my sig:http://forum.e46fanatics.com/showthr...highlight=dmax

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10-01-2012, 10:36 AM	#23
KHUT46M3 Registered User Join Date: Sep 2012 Location: CherryPoint NC Posts: 3 My Ride: 2003 e46 M3 View My Garage	Ugh, same problem on my 03. Tapped on the starter nothing. Fuses all ok. I read a thread that said re-sync your key. I bought the car and only got one key so I don't want to cut it open to try to even attempt to replace the battery. How would I check the clutch switch to see if that is my problem??? Not replacing my starter as a last resort if nothing works any new insight would be greatly appreciated