Intermitent Starting problem

[Bomber]

I have an A class 160 which fails to start. There is no life at all when the ignition key is turned. I have taken it to garages who have repalced an exhaust management sensor?! and another who put it on a diagnostic and said it was the starter motor.
I don't think it is any of these as all of the dashboard warning lights fail to come on [ bar the SRS light]
The car can start easily 'bump start' when pushed - but I'm getting to old for all this!!
I wondered if anybody has had similar problems or can throw any light on this for me

 

[mattkh]

There is no life at all when the ignition key is turned.

Hi
What is the mileage

 

[Koolvin]

What year is your A Class?

here you go:

http://www.mbclub.co.uk/forums/showthread.php?t=65782&highlight=ignition

Also look at replacing the starter lockout relay. I have a spare ignition switch which you can have for £15 just PM me.

Try the Relay first its only £8 from the dealer and is reativly easy to replace (within engine bay)

 

[Bomber]

miileage 44,000 & it's an 03 year

 

[Koolvin]

did you click on my link?

http://www.mbclub.co.uk/forums/showthread.php?t=65782&highlight=ignition

If your in London, I could help.....

 

[Bomber]

Yes i did thanks for that but it looks like a garage job for me. You mentioned a starter lockout relay I presume this is different from the ignition switch? If so where is it located?

 

[Koolvin]

The relay will be in the engine bay. There is a black housing behind the washer fluid tank. (it has an AC sticker) remove the 3 torx screws and pull out any foam sponge packing to reveal a green relay....

Mercedes has revised the part number of this relay. Parts dept will give you the correct one when you go in.

TIP: near your battery should be a leaflet detailing relay part numbers etc - although it doesnt show the location of the starter locout relay.

If the realy and switch doesnt help you then it's more than likely your starter motor (engine needs to be dropped )

 

[Bomber]

Many thanks you have been a great help I will try the relay first then it's a garage job I think