R129 320 Intermittent Starting Issue

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madbonky

Active Member
Joined
Oct 3, 2006
Messages
63
Location
Heathrow
Car
R129 300SL, ML 320, C240, CLK 500 CAB, W203 ESTATE W126 500 SEL R129 320
Hi all, got a issue with my 2001 year 320 R129.

Every now and then ( few weeks sometimes) i turn the key get all the ignition lights but when i turn the key to start the car, nothing, no dimming of the ignition lights, just nothing happens.

I have tried putting the car into neutral but it doesn't make any difference, then i might try the car again in 10 mins it might start perfectly fine and not have any issues for the next few weeks.

The key turns smoothly in the ignition barrel so don't think its that but obviously not 100% sure.

As its intermittent i was thinking it could be a faulty inhibitor selector switch, does anyone know where the gearbox selector inhibitor is?

Also does anyone have any ideas of what it could be?

Thanks
Jay
 
Hello I would start by checking for. 12v feed at the Starter a feed when cranking and make sure that the chassis to engine/gearbox has low resistance
 
Does the the starter relay click? Is the relay getting 12volts when you turn the key to start the car?
 

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