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The regulator is internal to the alternator! Just replace the alt. The alternator has an internal regulator that can be replaced by itself; however, when there is an issue with the alternator, it often involves diodes in alternator instead of or in addition to the regulator. better repair shops will often take an alternator to an automotive electrical repair shop for same-day rebuilds, with the value much higher than a cheap rebuild in a chain parts shop, and hundreds less than a dealer replacement. You want Bosch or your own Bosch rebuilt
The voltage regulator is located on the back of the alternator. Just unscrew the two screws that mount it to the alternator and it falls right out. This is a five minute removal job, and you DON'T have to get under the car. One of the regulator's two brushes is probably worn out. Order a new unit or, if you are adventurous, simply replace the brushes. If you order a new one, it is best to go with a Bosch. Sometimes the cheap ones don't fit!
The voltage regulator in the alternator has a rectifier circuit with diodes. When one of the diodes burns our the alternator emits EMP's (electromagnetic pulses) Which are picked up in your speed sensor wiring. These EMP's confuse the transmission computer and causes all sorts of trouble. If left unrepaired, and you continue to drive it, You may damage the transmission. Furthermore, the voltage regulator controlls the current to the transmission solenoids. It can cause them to be underpowered (malfunctioning) or overpower them to damage them. In an Isuzu rodeo with an American transmission(4L30E), using an aftermarket alternator (wrong voltage regulator in it) can burn out the Bosch electronic transmission control unit(TCU). The max voltage is set too high. The Max voltage output should be 14.2v. with lights on, A/C on and all accessories running. There's more. But you get the idea.
Look under the back seat, on the other side of the car from the battery. That's where VW put it at the factory. If you have a Motorola alternator, it's a little silver box. If you have a Bosch, or a generator, it's a black box.
Mfg. in Germany?
I am wondering if you can convert the lp or propane gas to natural gas on a bosch tankless hotwater heater. I am guessing it has a different orfice and regulator
Bosch's birth name is Bosch, Andrs.
Alfred Bosch's birth name is Alfred Bosch i Pascual.
Bosch is German.
Absolutely. It will go right in. The only thing you want to be careful of is the alternator--if there's a Motorola alternator on the donor car, make sure to take the Motorola voltage regulator from under the back seat and the wiring that runs between them unless you want to swap the alternators, which isn't hard. If there's a Bosch on both cars, you're golden.
No. Pseudonymous Bosch is a man, as he is often addressed as "Mr. Bosch".
Orlando Bosch went by Orlando Bosch Pilan.