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Intermittent Starter Motor Noise
Posted: Tue Jan 30, 2018 6:28 pm
by RustyZ4
Once in a while when I start the car, I get what can only be described as a "graunching" noise, it doesn't do it often, probably 3 times in 4 months, but I just wondered what it could be, the car is under BMW warranty and wondered if I should get them to check it out, or if this is a common problem with no issues,
Thanks in advance for any advice
Intermittent Starter Motor Noise
Posted: Wed Jan 31, 2018 3:16 pm
by mcbutler
Well, its certainly not 'normal'. you may have a tooth or two missing from the flywheel!!
Intermittent Starter Motor Noise
Posted: Wed Jan 31, 2018 4:00 pm
by ph001
Does it only make the noise when the car actually starts and you let go of the key or does it do it whilst turning over on the starter before it's fired?
Intermittent Starter Motor Noise
Posted: Wed Jan 31, 2018 4:45 pm
by Smartbear
RustyZ4 wrote: ↑Tue Jan 30, 2018 6:28 pm
Once in a while when I start the car, I get what can only be described as a "graunching" noise, it doesn't do it often, probably 3 times in 4 months, but I just wondered what it could be, the car is under BMW warranty and wondered if I should get them to check it out, or if this is a common problem with no issues,
Thanks in advance for any advice
My 3.0si did this, it seems the starter can get coated in clutch dust which gums it up enough to graunch a bit (usually in cold weather)
Removal & cleaning is supposed to sort it out
Rob
Intermittent Starter Motor Noise
Posted: Wed Jan 31, 2018 5:29 pm
by ph001
Intermittent Starter Motor Noise
Posted: Wed Jan 31, 2018 7:00 pm
by RustyZ4
ph001 wrote: ↑Wed Jan 31, 2018 4:00 pm
Does it only make the noise when the car actually starts and you let go of the key or does it do it whilst turning over on the starter before it's fired?
It only does it from a cold start, and yes whilst turning over
Intermittent Starter Motor Noise
Posted: Wed Jan 31, 2018 7:01 pm
by RustyZ4
Thanks for that, I think as its under warranty I will get BMW to check it over for me
Intermittent Starter Motor Noise
Posted: Fri Feb 02, 2018 10:36 am
by RustyZ4
ph001 wrote: ↑Wed Jan 31, 2018 4:00 pm
Does it only make the noise when the car actually starts and you let go of the key or does it do it whilst turning over on the starter before it's fired?
It did it again last night, I actually noticed the noise it right at the end of start up, might be coincidence, but it always when its really cold out
Intermittent Starter Motor Noise
Posted: Sat Feb 10, 2018 11:03 pm
by mcbutler
At the end of start up the engine speed exceeds starter motor speed and the gear that engages the flywheel when you press start is thrown out of mesh. It lands against a spring on the shaft of the starter motor. May be a broken spring rattling??
Intermittent Starter Motor Noise
Posted: Mon Feb 12, 2018 6:34 pm
by RustyZ4
mcbutler wrote: ↑Sat Feb 10, 2018 11:03 pm
At the end of start up the engine speed exceeds starter motor speed and the gear that engages the flywheel when you press start is thrown out of mesh. It lands against a spring on the shaft of the starter motor. May be a broken spring rattling??
thanks mcbutler, going into the stealers tomorrow, ill se what they come up with