A-160cdi service light re set?

[Bigtee]

My grandads A class the service light is on the second spanner light how do we re-set this?

It's a 04 plate and it was serviced by myself but the car only does 2k a year and we must have forgot last time.

 

[Bigtee]

Nobody know?

 

[Cole@MBS]

Press the button with the clock on 3 times to pull up the service miles, hold button down turn of ign and back on while still holding button still, it will beep and say reset!

 

[Bigtee]

As simple as that thank you........