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service indicator..is it reliable? - barney100
I have had a w reg merc c200 for about 6 months (diesel)and the service record says it was serviced about a year ago. I have changed the engine oil but the service indicator has remained inactive. Anyone any thoughts on this?.
service indicator..is it reliable? - harry m
i have just had my ml 270 diesel serviced by merc independant garage as the indicator said it was due,the garage has to reset with there computor.mine is done on time as i do not do many miles max 2 years.i think it looks at mileage or time.hope this is of some help.
service indicator..is it reliable? - Ex-Moderator
No idea for the Merc, but on the Galaxy absolutely it is not reliable. So unreliable that they even tell you how to reset it in the manual.

And my mate, the Ford Franchise man, says that it should be totally ignored on Galaxys which should be serviced according to the appropriate mileage irrespective of the activities of the light or its current enthusisam, or lack thereof, for a service.
service indicator..is it reliable? - Aprilia
Don't believe them.
service indicator..is it reliable? - Oz
Have had no problems at all with the BMW service countdown. I'm aware of the algorithms used and they seem to be borne out in practice, 100% consistent.
One could argue against service intervals exceeding 10,000 miles - but that's a different argument.
Oz (as was)