I have a '98 W210, with 104k. At 100k the 'check engine' light came on while idling. The light turned off 2 days later. I took the car on a 4k cross country trip. Car ran like a dream, 30-32mpg @ 80-85 mph. And the light was on & off during of the trip. (It is now always on)

Is there a way I can check the cause of the light? My other cars will display the computer code, if the light come on. Does Mercedes do this also?

Anyone else have this problem?

Thanks Jim

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'98 E320 90k
'91 Miata Turbo 280hp
'90 Miata Turbo 230hp
'90 Audi 200 turbo 170k
'93 Caravan