I could be wrong (feel free to correct) on this - but I had a similar problem on my e280 and read on some forum that:
a) if you don't have it checked it can damage the relay which is more expensive. In my case it turned out to be the relay anyway
b) they are more for emissions than starting these days
I could be wrong (feel free to correct) on this - but I had a similar problem on my e280 and read on some forum that:
a) if you don't have it checked it can damage the relay which is more expensive. In my case it turned out to be the relay anyway
b) they are more for emissions than starting these days