How many oxygen sensors does a 2002 BMW 325i have?

How many oxygen sensors does a 2002 BMW 325i have?

In this article, I will show you how to identify the location of all four oxygen sensors and how to replace them. You will need an oxygen sensor socket to remove the sensors.

How many belts does a BMW E46 have?

Project Photos. Figure 1 The BMW E46 models utilize 2 multi-rib engine drive belts.

Where is the fuel filter located on a BMW 325i?

The 2003 and later BMW E46 325i models sold in California, Massachusetts, New York and Vermont were designated SULEV vehicles. These models came equipped with an M56 engine. The fuel filter is located inside the fuel tank and is considered a lifetime filter by BMW. This style of filter does not require replacement.

Where is E46 fuel filter located?

The BMW E46 fuel filter is located on the left side of the vehicle approximately mid way back. It is covered with a metal plate. Using an 8mm nut driver or socket wrench, remove the bolts securing the fuel filter cover to the chassis of the vehicle.

How long do BMW O2 sensors last?

60,000 to 90,000 miles
Since O2 sensors are so critical to your car’s system, it’s recommended to replace your sensors every 60,000 to 90,000 miles.

When should I replace my O2 sensor BMW?

Oxygen sensors should be replaced every 100,000 miles. In a perfect world that would be it, wait until a specified mileage and replace the sensor. However, these sensors fail prematurely, set oxygen sensor fault codes and reduce fuel economy.

How much does it cost to replace a serpentine belt on a BMW?

Belts themselves aren’t that expensive. The real cost is in the labor, because a lot of parts need to be disassembled to get to the belt. Shopping around to get a few quotes is your best bet to get the best deal, but you can expect to pay anywhere from $409 to $919 (including parts and labor).

How long do BMW belts last?

between 50,000 and 100,000 miles
How Long Do Serpentine Belts Last? Most modern serpentine belts are able to last anywhere between 50,000 and 100,000 miles, which is a fairly big window of time.

When should I change my BMW fuel filter?

In short, BMWs are recommended to have their fuel filter changed every three years.

How often should you change fuel filter E46?

Filters vary with gas quality, and how often you run the tank low (sediment pick up). I change mine every 20-30k miles, because it’s easy. I do notice difference in performance with a new filter.

Can I replace a serpentine belt myself?

Automatic belt tensioners, standard in most cars now, make changing a serpentine belt a simple DIY repair. Follow the clear photos and step-by-step instructions and you’ll be done in 15 minutes.

When Should timing chain be replaced BMW?

Replacement Guidelines BMW and MINI use Timing Chains in almost every model of engine that they produce.It is recommended to replace your timing chain before failure as repair prices can become very high from internal engine damage. From experience the life of these timing chains are 90,000 miles or 9 years.