Question 1

What is the function of an alternator in a car?

Accepted Answer

An alternator is a device that converts mechanical energy from the engine's crankshaft into electrical current that powers the car's systems and charges the battery.

Question 2

What is the difference between an alternator and a generator?

Accepted Answer

A generator is the general term for a device that produces electricity. An alternator is a specific type of AC generator used in cars.

Question 3

What does the term "compact alternator" mean?

Accepted Answer

A compact alternator is reduced in size and weight while maintaining the same power output. It is often used in newer generation cars.

Question 4

What are the symptoms of a faulty alternator?

Accepted Answer

The most common include: battery light on, flashing lights, bearing noise, and voltage drops.

Question 5

Are used alternators a good choice?

Accepted Answer

Yes, alternators used from a reliable source are an economical and ecological solution that allows you to reduce operating costs.

Question 6

How do I check if the alternator will fit my car?

Accepted Answer

It is best to use the VIN number or compare the OEM part number – this guarantees full compatibility.

Question 7

How much current should a functioning alternator generate?

Accepted Answer

A standard alternator in a passenger car should maintain a voltage of 13.8–14.4 V at a current of up to 150 A.

Alternators and generators

Audi A6 C7 A7 4G Alternator Generator Hitachi 2.8 FSI 06E903018M

Alternator Generator Mercedes W204 W211 OM646 Diesel Bosch 180A A0131549002

Alternator BMW E90 E81 E87 E85 Petrol Engine N45 N46 Alternator 150A 7533270

Audi RS3 8V 2.5 TFSI Alternator 14V 180A 07K903023J

BMW E46 Alternator Generator Diesel Engine M47N M57N 150A Lucas LRA02891

Audi A4 B9 VW Polo Mk5 1.4 TFSI Petrol Alternator Generator Denso 04E903024N

BMW E60 E61 E63 E65 E83 Alternator Generator VALEO 170A 7797521

Audi A4 B8 3.0 TDI CAPA Diesel Alternator 04L903017A