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Discussion Starter #1
New C Max (3000miles) filled with supermarket petrol. Shortly after filling tank the EMS came on.
Any possibility that the sophisticated EMS does not like cheap fuel .
Would use of fuel additive resolve problem in short term.
6 week wait for a warranty inspection with dealer.
 

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I always use supermarket fuel without any problems so it could be just a coincidence, as for additives I always use Redex on all the cars I've had since 1990 ish.
6 week wait is really bad just for a code reading taking a couple of mins if it's the dealer you bought the car from I'd complain to the sales manger saying is this the kind of service I can expect from your company kinda thing?
 

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CMAX.

So sit in the drivers seat, press the button on the end of the indicator stalk, and HOLD IT IN. Now switch on ignition to position 2, keep the button held down, and WAIT. The dash will eventually say TEST MODE.

Release the button, now all you have to do, is press the button once, to goto the next item, 10 or 11 steps in youll find something looking like this

DTC :
No Codes

or

DTC #01:
D0900

The codes will selfcycle thru, write the codes down and report back with them, we might be able to offer more help

To exit the test mode, switch the ignition off and then back on.
 
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