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location of starter motor fuse on e53 3.0d sport 2004

Posted: Tue Jan 27, 2015 11:45 am
by omodos
Hello all, as subject suggests I am looking for the starter motor fuse, cannot find it! its neither in the rear compartment or in the glvoebox area, anyone any ideas? could it perhaps be one of the high amp fuses that are in the spare tire compartment area(and not labelled up anyway)?

Reason I ask is that I believe my starter is drawing larger than 400amp at each engine start causing me sluggish starts and draining my battery , as suggested by one reader if the starter is rated at 2.2kw(oem one seems to be) that means it works at 12V X 183amps=2200watts approx, why does no fuse blow if the amp drawing device has a fault and is drawing more than the 183a rating?
cheers

Re: location of starter motor fuse on e53 3.0d sport 2004

Posted: Tue Jan 27, 2015 1:04 pm
by X5Sport
I don't think there is a fuse.  The starter will only spin up if the solenoid engages the drive gear that goes onto the flywheel rim & then the power.  A fuse for the current required would be too large and need to be a slow blow/anti-surge to cope with the initial 'kick'.

Every car I have owned has a starter cable directly from the battery to the motor.

Richard

Re: location of starter motor fuse on e53 3.0d sport 2004

Posted: Tue Jan 27, 2015 1:57 pm
by Smeeagain
same with every car I've ever owned too

Re: location of starter motor fuse on e53 3.0d sport 2004

Posted: Tue Jan 27, 2015 3:45 pm
by omodos
thanks fellas for the reply, I am a bit of a novice

Re: location of starter motor fuse on e53 3.0d sport 2004

Posted: Tue Jan 27, 2015 6:02 pm
by Horizon
It's probably got one of them dodgy Italian starters on it if it's pulling too many amps, time to buy a Bosch starter. :) :)

Re: location of starter motor fuse on e53 3.0d sport 2004

Posted: Tue Jan 27, 2015 6:23 pm
by omodos
replacement could well be a bosch made in god knows where....anyhow thanks for all the replies will do a bit more digging around on how much amp draw a 3 litre diesel should draw on startup, gonna clean the +ve poles and connections on the starter and in engine bay and take it from there