Mercedes-Benz Forum - View Single Post - 99 S420 Skips Heart Beat @ 70mph
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post #7 of (permalink) Old 03-20-2018, 09:05 AM
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Mlthoma's Avatar
Date registered: Dec 2014
Vehicle: 96 S420
Location: Albuquerque, New Mexico, USA
Posts: 74
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Quoted: 18 Post(s)

Mine displayed exactly the same behavior when I got it, like it shuts down for a split second and then goes on as if nothing had happened. Most of the time it doesnt cause a problem, but if it happens when your going slow it may stall completely. It used to happen once or twice a day. It didnt throw a CEL. It was the MAF sensor. SDS showed a MAF error so I swapped the one off my parts car and it's never happened again.
CEL can be cleared by most any handheld OBD2 scanner or autozone.

Hope this helps.

Mike in ABQ
Mlthoma is offline  

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