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I just purchased a used 1990 190E 2.5-16 and i noticed that the ASD light on the dash is always on, even if the engine is not yet started but the key is on.
this is my first benz, so i am not familiar with its systems yet. can someone help me to locate the problem? is there a diagnostic port i need to work with - if so, please let me know where its located and how do i use it?
by the way, what is the ASD for? i drive the car around the city and i cant seem to feel anything wrong, even though the ASD light is continuously on.
many thanks. any help is appreciated.
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thank you for taking the time to reply. can you tell me where the ASD valve as well as the ASD control unit are located?
also, if i fail to fix this problem, are there other parts in the car that would be affected? or do i just lose the ASD capability? I am asking because i am in the philippines and parts for this kind of car are not easy to get here. so i'm thinking, if its the ASD unit itself, i might as well kill it because i use the car for city driving only, and its an automatic anyway so no worries there about spinning during acceleration.
what do you say? your advise is highly appreciated.