1985 BMW 735I wont start

Guythunder · 05-06-2009, 12:52 PM

My BMW wont start there is no fire to the plugs so I replaced the coil that wasn't it I understand there is a ignition control unit on this car somewhere I thought I would try by replacing it and see if that is it what do you think? is there something I might be overlooking. HELP

M3guy · 05-11-2009, 12:29 PM

Does the starter engage ? What engine do you have ?

**octaneman** · 05-13-2009, 04:53 PM

I'm guessing your BMW is : 735i/L M30 I6 12V 3,430 cc (209 cu in)
208 bhp (155 kW; 211 PS)
@ 4900 305 N·m (225 lb·ft)
@ 4000 8.3 (man) / 9.1 (aut)

is this correct ?

i6 pwr · 05-22-2009, 12:37 PM

The Motronic box is located behind the RF speaker. If you have power to the coil, check the crank sensor.

05-06-2009, 12:52 PM	#1 (permalink)
Guythunder Registered User Join Date: May 2009 Posts: 1 OS: xp	1985 BMW 735I wont start My BMW wont start there is no fire to the plugs so I replaced the coil that wasn't it I understand there is a ignition control unit on this car somewhere I thought I would try by replacing it and see if that is it what do you think? is there something I might be overlooking. HELP

05-11-2009, 12:29 PM	#2 (permalink)
M3guy Registered User Join Date: Nov 2008 Posts: 118 OS: openSUSE 64 bit	Re: 1985 BMW 735I wont start Does the starter engage ? What engine do you have ?

05-13-2009, 04:53 PM	#3 (permalink)
octaneman Mentor Join Date: May 2009 Posts: 498 OS: WINXP	Re: 1985 BMW 735I wont start I'm guessing your BMW is : 735i/L M30 I6 12V 3,430 cc (209 cu in) 208 bhp (155 kW; 211 PS) @ 4900 305 N·m (225 lb·ft) @ 4000 8.3 (man) / 9.1 (aut) is this correct ?

05-22-2009, 12:37 PM	#4 (permalink)
i6 pwr Registered User Join Date: May 2009 Posts: 3 OS: XP	Re: 1985 BMW 735I wont start The Motronic box is located behind the RF speaker. If you have power to the coil, check the crank sensor.