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Old November 3rd 11, 12:24 AM posted to aus.cars,rec.autos.makers.vw.watercooled
D Walford
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Posts: 15
Default Starter solenoid current?

On 03/11/2011 1:35 AM, Bernd Felsche wrote:
> > wrote:
>
>> On 11/2/2011 3:45 AM, Bernd Felsche wrote:
>>> Something I don't know ... and can't seem to find out all that
>>> easily.
>>>
>>> I'm trying to figure out the current draw by the starter solenoid,
>>> (not the starter motor) at terminal 50.
>>>
>>> It's powered through the ignition switch in the Golf GTI but the 4mm
>>> wiring has me baffled. That's too much current to go through a
>>> little ignition switch if the wire is sized for current capacity.
>>>
>>> So I assume it's sized to avoid voltage drop, which leaves me none
>>> the wiser regarding the current actually drawn by the starter
>>> solenoid.

>
>> I believe you will find there is a relay in the circuit. What year
>> Golf is it? BTW, yes, it is a lot of current--more than one might
>> expect.

>
> 1990. There's 4mm wiring into and out of the ignition switch when I
> last had that part of the sah and steering column uncovered.
>
> Current flow diagrams (two sources) draw it as direct-wired.
> No relay.


Most starter relays are no more 30amps so that suggests the current is
less than 30amps on most cars.
Not having a relay is most unusual but it is a VW.
Are you trying to fix a fault, why do you need to know how much current
its drawing?


Daryl
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