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Matt
Matt, Mechanical Engineer
Category: Mercedes
Satisfied Customers: 21977
Experience:  BEng hons Mech engineering, in auto industry 22 years
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reset the check engine light on a C230 kompressor soft top

Resolved Question:

reset the check engine light on a C230 kompressor soft top
Submitted: 2 years ago.
Category: Mercedes
Expert:  Matt replied 2 years ago.
Hello

Ideally to reset the check engine light the car needs to be plugged into a diagnostic device to read off the code thats generating the check engine light , so it can be repaired

otherwise you can just reset the light and it'll pop right back up as the original fault isn't cleared

However if you don't have access to a diagnostic device then you can also try resetting the car by removing both battery leads and clamping them together for 10 mins as this will reset everything so if the light re-appears then the fault is still there.

Disconnect the battery cables and clamp them together for 10 mins. Remove both battery leads from the battery then use a nut and bolt or G-clamp to hold both battery lead terminals together.

This discharges any capacitors / memory within the ECU and around the car so ensures all memory settings are wiped clear - back to the factory default.

This will reset all the systems on the car and you may need the radio security code to get it going again, and ensure that the keys are in your hand when you re-connect the battery as the car may lock and turn on the alarm

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