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S420
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Discussion Starter #1
On my last car, a BMW, I could erase fault codes by grounding a pin in the diagnostic plug. Is there a similar was to do that in a '96 S420?

Many thanks.
 

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not quite that simple - you need an obd scanner - the cheapest is one made by elm scan - 90 uk pounds (100 ish dollars)

i got mine from www.gendan.co.uk - i assume you are a collonial - and thus want a US supplier - try here:-

http://www.scantool.net/products/elmscan_iso.htm

and the best software (as in finds the most codes) is

http://www.wgsoft.de/index.php?newlang=english
 

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1997 S600 (sold)
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4,660 Posts
Disconnecting the battery may do it. Works for the Boxster. I don't know

about MB. Pull the ground cable, wait a minute, then reconnect. Have your radio code handy. You'll also have to reset your windows for express up and down function.

But, don't you want to know what your car is trying to tell you? As mentioned, OBDII readers are available for under $100 now.

Alternatively, Autozone stores will read codes for free. But, I'm not sure whether they turn off the check engine light.

Brett
 

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S420
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Discussion Starter #4
Thanks for the tip, Brett..

In this case, I knew what the fault code would be so I just wanted to erase it. Ended up going to Autozone.

This all started witn I hosed off the engine and it started misfiring (again). I know better...had to pull the coils and dry off the plugs.
 
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