When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Hello I recorded a video to explain myself and show the part I am talking about. Please check it out.
Correction in the video I say the top part number of the voltage regulators are the same but they are not, First one from 2003 is BR14-MO and F 00M 144 146 but the one in the new remanufactured alternator is BR14-H and F 00M 144 152.
The new remanufactured alternator that I will install is from an 06 cls55
The main question is could the voltage regulator be the thing causing the alternators to burn? or could mine have been on its way out? I usually have torque app open with when I drive, I never saw it overvolt.
Swapped the voltage regulators, seems like my original one has a little more life in it. Could a bad battery be the thing causing the alternators to burn up? The volts on my battery are 11.9-12 (correction 12.4v at 45%), is there any other way to know if the battery is bad?
Last edited by MartinWake; 01-26-2021 at 09:05 PM.
Just took the battery out and put my charger on it, it read 45% at 12.4v seems like the car had been running on the battery for a bit. Gonna let it charge and the volts should go up.
Swapped the voltage regulators, seems like my original one has a little more life in it. Could a bad battery be the thing causing the alternators to burn up? The volts on my battery are 11.9-12, is there any other way to know if the battery is bad?
The battery voltage when fully charged and properly operating should be 12.7 volts. Have a conductive test on your battery. That test is looking for how current passes through the conductive plates in the battery. It is the best method to determine the quality of the battery. The battery will need to be fully charged for this test, so before you take it for the test have it charged. If it won't hold a full charge then that is also evidence the battery is having issues. NAPA auto parts stores should have the conductor testing equipment. Good luck.
The battery voltage when fully charged and properly operating should be 12.7 volts. Have a conductive test on your battery. That test is looking for how current passes through the conductive plates in the battery. It is the best method to determine the quality of the battery. The battery will need to be fully charged for this test, so before you take it for the test have it charged. If it won't hold a full charge then that is also evidence the battery is having issues. NAPA auto parts stores should have the conductor testing equipment. Good luck.
Thanks! will go to an auto store tomorrow when I install the alternator.
New alternator check! charged battery up, 100% at 13v. Alternator 13.8-14volts. Weirdly enough on the toque app it shows 13.5-13.7, I didnt think there would be two sensors?
01-26-2021, 06:45 PM
