How often should fuel injectors be replaced on BMW?

How often should fuel injectors be replaced on BMW?

How often do fuel injectors need to be replaced? On average, fuel injectors tend to fail after 80,000 miles, and require little maintenance. To prolong the life of the fuel injectors, follow the scheduled maintenance schedule for cleaning the fuel delivery system and injectors.

How long do BMW fuel injectors last?

Both Bosch and Delphi, two major manufacturers of automotive components, say their fuel injectors have a life expectancy of 1 billion cycles. Essentially, that means that the fuel injectors should last as long as the car does.

How often do fuel injectors need to be replaced?

Some fuel injectors are rated to last one billion cycles or approximately the lifetime of the vehicle. But when you factor in the adverse conditions experienced in real-world driving coupled with a lack of proper maintenance, most fuel injectors might need to be replaced every 50,000 to 100,000 miles.

How much does it cost to replace injectors on a BMW?

Generally, replacing fuel injectors can cost anywhere from $800 to $1500 depending on the repairs and labor costs. New fuel injector parts can cost anywhere between $600-$1200. To that, expect to pay about $200-$250 in labor charges.

How long does the average fuel injector last?

The fuel injectors on your car will typically last between 50,000 and 100,000 miles. The length of time that the injector lasts has a lot to do with the type of gas that is used in the car and how often the various fuel filters are changed.

How To Tell If Your BMW Injectors Are Leaking/Clogged!

How do I know if my fuel injectors need to be replaced?

Here are a few signs there might be something wrong with your fuel injectors.
  1. The Engine Misfires. Dirty fuel injectors may cause your vehicle’s engine to misfire. …
  2. Idling Gets Rough. …
  3. Your Gas Mileage Tanks. …
  4. The RPM Needle Starts to Dance. …
  5. Your Car Won’t Start.

How much does it cost to replace fuel injectors?

On average, you can expect to pay between $350 and $850 to replace your fuel injectors. The range of costs depends on a number of factors. Smaller vehicles with fewer cylinders requiring less expensive parts will come in at the lower end of the spectrum. Larger, high-performance engines will command a higher price tag.

How much are BMW fuel injectors?

Most Popular BMW Fuel Injectors

Based on industry averages you can expect to pay between $32.99 and $346.99 for a BMW fuel injector.

Can BMW fuel injectors be cleaned?

They can use stronger cleaners as well as tools to help clean the clogged or dirty injector. After which, you should use an injection cleaner from the auto parts store after so many miles.

Are fuel injectors covered under warranty BMW?


The engine fuel injectors limited warranty extension to 10 years/120,000 miles applies to “eligible US-specification BMW vehicles” that are registered, operated and have their covered repair performed by an authorized BMW center in the United States (including Puerto Rico).

Is it better to clean or replace fuel injectors?

CARS.COM — Cleaning fuel injectors is a service frequently recommended by dealers and repair shops. But unless there are noticeable signs of clogged fuel injectors (such as a rough idle, stalling, poor acceleration or high emissions levels), it might not be necessary.

What is the most common cause of injector failure?

Common causes of injector failure

While many things can cause breakdowns, the most likely cause of premature failure is fuel contamination. Fuel contamination occurs when debris in the fuel gets past the filtration, destroying the sealing surfaces.

Do new fuel injectors make a difference?

Changing fuel injectors is not a “plug-and-play” performance upgrade, such as installing a low restriction air filter. It’s something that requires knowledge about how the fuel delivery system works. In fact, upgrading fuel injectors may actually decrease the engine power if done incorrectly.

How long do fuel injectors last on BMW 335i?

The N54 fuel injectors are warrantied for 10 year or 120,000 miles. If you are under warranty, BMW will try to only replace the fuel injector that is leaking. MAKE THEM REPLACE ALL! If you have one injector leaking, it is likely more will follow soon after.

How often should fuel injectors be cleaned?

It is recommended to get fuel injector cleaning done after every 60,000 to 90,000 miles. If you’ve noticed a sharp decline in your fuel economy, a lack of power in your car, or have experienced a sluggish feeling when you accelerate, it could mean you need a fuel injection cleaning service.

What causes fuel injectors to fail?

Fuel injectors typically fail due to a buildup of contaminants such as carbon. Carbon build-up can cause a clogged or partially clogged injector, preventing the injector from closing all the way. This results in a drip that creates a misfire.

Will a bad fuel injector throw a code?

Diagnosing a Clogged Fuel Injector

One of the obvious symptoms of a clogged fuel injector is the lighting up of the “Check Engine” light in your dashboard. The fault codes usually associated with a clogged fuel injector can range from misfire codes to lean codes.

What are BMW injectors?

Fuel Injectors in a BMW

The fuel injectors in your car are vital to the overall function of your car. They work with the fuel system and are how fuel gets delivered to your car’s engine. The system relies on being precise in order to work efficiently and to optimize the performance of your vehicle.

How do you test a fuel injector?

Listening or Clicking Test
  1. Start the engine and allow it to idle.
  2. Keep the engine running and touch the end of a long metal screwdriver against the fuel injector.
  3. Put your ear on the opposite end of the screwdriver.
  4. A clicking sound means the injector’s working.

Do BMW injectors need coding?

Direct fuel injectors need to be coded, the injector has a code written on it that corresponds with that exact injector’s spray pattern & flow rate when it was bench tested at the factory.

Where are BMW fuel injectors made?

BMW fuel injectors, made in Italy. Interesting. All new turbocharged BMW engines use a direct fuel injection system which directly injects fuel into the combustion chamber. Due to the design, the engine relies heavily on a properly operating fuel system.

Why are fuel injectors so expensive?

Injectors have a tolerance of 1 micron, the finest tolerance of any mechanical component on the engine. To be able to manufacture at such precise standards and to afford the exacting quality checks along with it also helps to explain part of the costs of quality fuel injectors.

Should all fuel injectors be replaced?

Is It Best To Replace All Fuel Injectors At Once? Your diesel fuel injection system is frequently a cause of engine failure because of a single injector. It is therefore necessary to replace one injectors at a time when your injectors are aging.

Does fuel injector cleaner work?

Do Fuel System Cleaners Work? Yes! When used regularly, fuel system cleaners can help work to remove harmful deposits and keep new ones from forming. They are especially important for engines running on gasoline containing Ethanol and fuel-injected engines.