BMW 750i Fuel Injector Replacement Costs

Estimate price near me

Service Location

Customer Ratings

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

See availability

Customer Ratings

Fuel Injector Replacement Service

How much does a Fuel Injector Replacement cost?

On average, the cost for a BMW 750i Fuel Injector Replacement is $1777 with $1567 for parts and $210 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2016 BMW 750iV8-4.4L Turbo	Service typeFuel Injector Replacement	Estimate$7899.98	Shop/Dealer Price$9443.39 - $13885.09
2008 BMW 750iV8-4.8L	Service typeFuel Injector Replacement	Estimate$4203.49	Shop/Dealer Price$5204.42 - $8196.41
2014 BMW 750iV8-4.4L Turbo	Service typeFuel Injector Replacement	Estimate$5076.15	Shop/Dealer Price$5903.04 - $8286.35
2011 BMW 750iV8-4.4L Turbo	Service typeFuel Injector Replacement	Estimate$5727.95	Shop/Dealer Price$6717.75 - $9589.89
2017 BMW 750iV8-4.4L Turbo	Service typeFuel Injector Replacement	Estimate$7780.15	Shop/Dealer Price$9284.07 - $13696.16
2012 BMW 750iV8-4.4L Turbo Hybrid	Service typeFuel Injector Replacement	Estimate$5727.95	Shop/Dealer Price$6721.03 - $9595.62
2015 BMW 750iV8-4.4L Turbo	Service typeFuel Injector Replacement	Estimate$5076.15	Shop/Dealer Price$5903.38 - $8286.94
2006 BMW 750iV8-4.8L	Service typeFuel Injector Replacement	Estimate$4203.49	Shop/Dealer Price$5204.49 - $8196.52

Show example BMW 750i Fuel Injector Replacement prices

What is a fuel injector and how does it work?

A fuel injector is a fuel metering device that sprays atomized droplets of fuel in a specific pattern into the engine’s intake manifold or directly into the combustion chamber. The injector has a solenoid and valve within and the operation, or pulsing, of the solenoid is controlled by the powertrain control module (PCM). The PCM controls the solenoid’s “on” time in order to keep the air-fuel ratio optimized while the engine load and operating conditions constantly change. Fuel injectors are usually connected to a fuel rail located on the top of the engine and the fuel rail, in turn, is supplied with fuel under pressure from the fuel pump located in the fuel tank.

When to consider replacing a fuel injector:

Rough idle, loss of power, or misfiring. Poor engine operation has many causes but faults in the fuel injection system, including the fuel injectors, are high on the list of possibilities.
Odor of raw gas or visible leaks. Fuel injectors should not leak fuel into the intake manifold when the car is off. If you notice any fuel odor around your car, the possibility of a leaking fuel injector should be considered. There should be no external leak from a fuel injector. If an externally-leaking injector is suspected, do not start your car due to the fire hazard.
Check engine light. Some fuel injection failures, for example, a faulty solenoid, may cause a trouble code to be set in the PCM and that will cause the check engine light to illuminate. The codes are read and the fuel injector is tested directly, as needed.
Major engine repairs, engine replacement, or lengthy storage. All fuel injectors will have deposits given enough mileage. These deposits can cause an imbalance in the performance of the injectors from cylinder to cylinder. When an engine is already disassembled, or if you are installing a new engine, that is a perfect time to service the injectors as a set. All injectors have tiny internal filter baskets. A professional injector service facility will clean each injector ultrasonically and replace these filters for a relatively low cost.

How do mechanics replace a fuel injector?

Injectors can be serviced once removed from the car or replaced outright with new injectors. If the injectors are serviced, specialized cleaning and test equipment are required. The choice to repair versus replace will depend on exactly what is wrong with the injector as well as customer preference. Either option requires removing the injector from the car and the following procedure is typical:

Once the engine is cold, the pressure within the fuel rail is relieved by briefly running the engine with the fuel pump fuse out.
The upper plenum on the intake manifold is removed along with any cables, hoses, or wiring that restricts access.
The supply and return lines are removed from the fuel rail. The electrical connectors to each fuel injector are unlocked and removed. The fuel rail is then unbolted and removed from the intake manifold.
The injector(s) requiring replacement are removed from the fuel rail, taking care to not allow any debris to enter the exposed openings. An O-ring seal usually holds the injector very firmly in a finely polished bore in the fuel rail.
Using a new O-ring, the serviced or replaced injector is re-inserted into the fuel rail — using engine oil on the O-ring to prevent damaging it. O-rings in this application fit very tight to prevent fuel leaks.
The fuel rail is re-installed and the supply and return lines are re-connected. The plenum is re-installed along with all cables, hoses, or wiring.
Finally, the engine is run, there is a careful check for leaks, and the vehicle is road tested.

Is it safe to drive with a fuel injector problem?

Yes, so long as there is no external leak of fuel from a broken or malfunctioning injector, it is safe to drive the car. However, if the injector is known to be malfunctioning, it can cause engine misfires, excessive emissions or, in the case of a badly leaking injector, can overload and overheat the catalytic converter. Additionally, fuel efficiency will always be diminished if the fuel injectors are not working properly.

When replacing a fuel injector keep in mind:

Using high quality (Tier One) gasoline may reduce deposits on fuel injectors and prolong their life.
If an injector problem develops that requires removal of one injector, the best practice is to remove and service all of the injectors at the same time. That service might involve replacement of the electrically failed injector along with off-the-car cleaning of the remaining injectors. Serving all injectors at once ensures the injector set will be balanced, in terms of flow rates, and in turn promote smooth operation of the engine.
Do not use fuel system cleaning compounds, or procedures, unless such materials are specified by the manufacturer of your car.
On the car cleaning of fuel injectors is not as effective as off-the-car cleaning because injectors have tiny internal filter baskets that should be replaced as part of the process of servicing a fuel injector.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(50)

Rating Summary

45

3

1

0

1

45

3

1

0

1

SEE REVIEWS NEAR ME

Kevin

26 years of experience

19 reviews

Kevin

26 years of experience

by Clifford

BMW 750i V8-4.4L Turbo - Tire Rotation - Lake Worth, Florida

Great mechanic and even better person! Would recommend to anyone!

Greg

23 years of experience

624 reviews

Greg

23 years of experience

by kamaljits

BMW 750i V8-4.4L Turbo - Brake Warning Light is on - Gilbert, Arizona

Greg is really good mechanic

Johnny

34 years of experience

392 reviews

Johnny

34 years of experience

by John

BMW 750i V8-4.8L - Pre-purchase Car Inspection - Sacramento, California

Great guy

Steve

38 years of experience

149 reviews

Steve

38 years of experience

by Rajeeve

BMW 750i V8-4.8L - Brake Pads Replacement (Front, Rear) - Fremont, California

Excellent Rating

(50)

Rating Summary

45

3

1

0

1

45

3

1

0

1

SEE REVIEWS NEAR ME

Recent articles & questions

How to Figure Out How Much it Costs to Have a Car

One One of the largest expenses you have is your transportation. It’s how you get from home to work, school, the grocery store, or the movie theater, and it costs you money. Have you ever figured out how much exactly...

How to Replace a Horn Switch

Your car horn works through the horn button. A faulty button can be hazardous and usually should be replaced by a professional.

The Guide To Colored Curb Zones in Wyoming

Wyoming Wyoming parking laws: understanding the basics Driving is a big responsibility, and people know that they need to pay attention behind the wheel. They need to be careful of their actions, and they have to be aware of the...

Brake lights don't work after replacing brake pedal switch

I can personally understand how frustrating it can be to try to get your brake lights working properly, and it looks like you have already put in a lot of effort to have it fixed! Having the information about your...

What qualifications do you need if you are to rebuild an engine?

Hi there. If you were to rebuild an engine on your own in your garage (that is, your engine and not someone else's engine), you would just need your tools and some books (with procedures and specifications) that can help...

2006 Honda Civic Dx won't accelerate over 20 mph...Checked codes says it's a misfire change plugs and found oil in well...Plz Help

To start you will need to replace the valve cover gasket and clean out all the oil out of the spark plug tubes. Then you will need to replace every coil boot that got oil on them. Once this is...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (844) 997-3624 · hi@yourmechanic.com