'99 mercedes e300 on a dash it shows service key symbol and 600 can anyone tell me about it?

I believe it is just the FSS telling you that you're due for service in 600 miles.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

thank you sir, whats included in that service?

how shall i go about resetting it

It's primarily for your oil change interval. The FSS keeps track of how you drive and determines when the oil needs to be changed. The reset instructions are in your owners manual, involves turning the key on and off and pushing a couple buttons in a certain order. I believe they are in a thread around here also if you don't have a manual.

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Muleears
'07 E320 Bluetec 133K my DD
'04 Jaguar XJ8 VDP, 34K
'10 Hyundai Accent 60K Grocery Getter
'02 VW Golf soon to be on the road again
'97 E300 Diesel Son's DD
'61 VERY tolerant wife

Hampton Roads, VA USA

Gone but not forgotten:
'67 250S 95K
'86 300SDL
'87 300D Turbo, 364K! R.I.P.
'98 E300 Turbodiesel, 213K
'02 S420, 164K
'01 Prius 138K

The symbol for oil service looks like a wrench. If you push the "0" button twice rapidly, you'll get the message: "service in xx miles" or something to that effect.

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-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

this week it came back and now says service wrench key in 500 miles

It will remind you every 100 miles. When it gets to 0, it will say "service interval exceeded by xx miles" and go back up from there.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250