hello,, i have a 1994 s420 w/228,000 miles, car have been runing very good until last ,my oil pressure gauge started, going up/down red lite came on /off but the car stll ran fine no noise,s turn car off re/started it ,,and every thing back to normal,, then today started it up it show no oil pressure but ran O,K is this a sign that the oil pressure switch is going,,,, the needle go.s up/down lite will come on 4. like 60/sec and go rigth off,,, but the car didn,t make any stange noise can some tell me what this my be,,going on thank.s any info,, would be helpful,,,, mel dwyer,, 1994 s420

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meldwyer