What is your question?
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What is your question?
The cooling fans on my 1998 W163, ML320 work part of the time. Pulling the fuse and replacing after a few seconds was fixing the problem, but now that isn't helping anymore either. Air inside the car blows but not cold. turns to ice cold quickly when fans engage. not sure what to do at this point. Mechanic wants me to buy a new computer for the electrical systems. everything else seems to work fine on the vehicle, not sure if that's the best course of action. uses a 30 fuse, I have heard some people have upgraded the wires to use a 40 fuse. not sure how to do that or if that's what the issue is.
What makes this problem better or worse?
After engine is off for a while, pullign the fuse and putting it back in would restore power to the fans.
How long has your 1998 Mercedes-Benz ML320 had this problem?
about a month.
2 Replies
There are simply too many possibilities here - this could be caused by an a/c high pressure switch .... 'IF' engine exhibits any sign of overheating according to temperature gauge - possibly a coolant temperature sensor malfunction. I would be hesitant to condemn a control module as the culprit until further *hands-on* testing is performed to prove it. Good luck!
Do not mess around with fuse amperage. The factory does a lot of testing to come up with a good amperage for each fuse. If the external pusher fans for the ac are not working all the time it could very well be a bad connection at the fan. It's super rare to see any issue with a "computer for the electrical system." I suggest you get a second opinion at a Euro shop. https://repairpal.com/repair-shops Alex
