Lets talk about W124 idling
#26
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Join Date: May 2003
Location: United Arab Emirates
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1992.5 400E W124
I used to get that "sewing machine" sort of idle when I first replaced the motor mounts on my 400E, but a while ago a leak developed at the front of the engine and you can feel the engine running now.
#27
Senior Member
Originally Posted by shadowgriffen
Hellah,
Have you checked your OVP? my car had a horrible Idle (like it wanted to die) before I checked the ovp fuse, once I changed it, the car ran like a bat outta hell and it idled smoothly and quietly.
PS/EDIT: I would STRONGLY suggest you change your battery everytime you replace the alternator, -Also check/replace your serpentine belt.
Have you checked your OVP? my car had a horrible Idle (like it wanted to die) before I checked the ovp fuse, once I changed it, the car ran like a bat outta hell and it idled smoothly and quietly.
PS/EDIT: I would STRONGLY suggest you change your battery everytime you replace the alternator, -Also check/replace your serpentine belt.
Well my battery is still good and we had warrenty on my alternator. But yeah the symptoms your discribing sounds like my car. Since i replaced my alternator it has the same problem. So what is the OVP?
#29
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is a German Tank
Originally Posted by hellah fresh
Well my battery is still good and we had warrenty on my alternator. But yeah the symptoms your discribing sounds like my car. Since i replaced my alternator it has the same problem. So what is the OVP?
Over Voltage Protection
it is located behind the battery terminal.
Pry open (gently) the black plastic wall that you will see once you remove the battery. Once you pry the wall open you will see what looks like two enormous plugs, on top of one of those plugs lays the 10 fuse inside a flip lid.
replace the fuse and voila! you should be all set.
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