How do I add transmission fluid to my 2004 S500. I am getting a check engine light and it is only operating in the safe mode (preactive)

5

Asked by Dec 21, 2015 at 07:01 PM about the 2004 Mercedes-Benz S-Class S500

Question type: Maintenance & Repair

How do I get the sealed cap off?  And what is the replacement part for the cap

1 Answer

210,105

Since the CEL is on, have the car scanned for the code or codes, or do you know the code already? Safe/limp mode activates to protect the engine when something fails and trips the light. Could be anything. Adding trans fluid won't accomplish that.

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