Mercedes vaneo 2002

David Elukpo

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Vaneo ambient 2002
Hi pls I need help. I noticed about 2 weeks ago my mercedes vaneo 2002 will not start. Lights come on and are very bright, battery checked with voltage tester and is ok. It happens in the mornings. After a while it comes on without any problem and works for about 2 days and I am back to it again. Pls what do I do next?
 

M80

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2014 639 Viano- 651, 5sp Auto. 2009 S211- 646, 5sp Auto.
You don't explain what is happening when it doesn't start.

Does it click but no rotation from the starter motor? You would hear it rotating.

Can you hear the starter motor rotating, at normal speed?
 
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David Elukpo

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Vaneo ambient 2002
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There is no sound at all coming from the engine nor from the starter motor.
The lights are working fine and dash board light comes on and there is no light dining when I turn the ignition to start the car.
 

M80

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2014 639 Viano- 651, 5sp Auto. 2009 S211- 646, 5sp Auto.
Best would be to have it diagnosed on Star or other good quality kit. This assumes that a 2002 motor is fully OBD compliant.

A good voltage doesn't always mean the battery has the ability to start, but you hear no sound when you try. It suggests the solenoid isn't engaging.
Fuse Box Diagram Mercedes-Benz Vaneo (2002-2005)

There is possibility that starter inhibit relay K38 is the issue,
but I see in the fuse rack there is possibility.

Otherwise I would work back from the starter motor ensuring 1st that there is voltage at the starter (heavy duty terminal and chassis), and then at the solenoid terminal when a start is attempted.
 


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