How much does it cost to fix a BMW alternator?
The average cost for a BMW 325i alternator replacement is between $744 and $780. Labor costs are estimated between $137 and $172 while parts are priced at $608. This range is based on the number and age of BMW 325i’s on the road.
How long do BMW alternators last?
around seven years
Most alternators last anywhere between 80,000 to 150,000 miles or around seven years. This number can vary as all cars are different. Here are some factors that can affect the lifespan of your alternator: Alternator quality.
How do I know if my BMW alternator is bad?
Warning Signs of Bad Alternator Seal
- Oil Leaks. One of the most common early signs that your BMW’s alternator seal is bad is oil leaks.
- ALT or GEN Light. Most BMW models will be equipped with an alternator malfunction indicator on their gauge cluster.
- Electrical Failures.
- Dead Battery.
- Hard Start or Stalling.
What causes BMW battery and alternator to warn?
Another common problem that causes BMW battery and alternator warning is a faulty BSD BMW module, typically mounted on the alternator. If the battery is relatively new, try charging the battery with a trickle charger. Additional problems that can cause this issue include.
What happens if you have a bad alternator in your car?
A bad alternator won’t sufficiently charge the battery while the engine is running, causing the charge to deplete faster than usual. One way to test whether the issue is battery- or alternator-related is to jumpstart the car. If you jumpstart your car and it stays running, your battery may need replacing soon.
Can a negative battery test a bad alternator?
Some may recommend running the engine with the negative battery cable disconnected to test the alternator. However, this is not a good idea because it could damage the electrical system of your vehicle and cause greater problems. Fixing your battery or alternator can be an expensive repair.
Where can I get an alternator for a BMW?
Here at Tech Plus Automotive, we service BMW vehicles from all over the areas of Phoenix, Scottsdale, Paradise Valley, and McCormick Ranch, AZ, giving us a wide range of experience attending to alternator issues in all types of BMW models.
What causes an alternator to go bad?
Reasons an Alternator Would Go Bad Failing Diodes. An alternator is essentially composed of three smaller alternators that each supply varying levels of power. Defective Bearings. Alternators revolve on high-precision needle bearings that you generally cannot hear. Insufficient Field Voltage. An alternator must have a field voltage of 12 volts to produce electricity. Worn Belt.
How do you know if your car has a bad alternator?
An alternator has a lot of moving parts that spin when it’s working correctly. If one of these parts starts to work ineffectively or breaks off, you may hear some unusual sounds. If you’re hearing a grinding sound in your car, this could indicate that the alternator is going bad.
Why is my alternator going bad?
Causes of a Bad Alternator. One of the most common problems of a faulty alternator is a loosened belt. The diodes of the alternator can go bad, failing to transmit the required voltage. The bearings on which the alternator rotates can also be at fault and hinder the alternator from providing an optimal performance.
How do I know if my battery or alternator is bad?
Signs of a bad alternator. If the above steps reveal that the battery is working, it’s time to take a closer look at the alternator. There are certain signs of a bad alternator to look for: While running the car, note the brightness of the interior lights. If the dashboard gradually dims, the alternator is likely at fault.