BMW 318ti 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 318ti Fuel Injector Replacement is $953 with $785 for parts and $168 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
1996 BMW 318tiL4-1.9L	Service typeFuel Injector Replacement	Estimate$1756.16	Shop/Dealer Price$2156.26 - $3339.55
1999 BMW 318tiL4-1.9L	Service typeFuel Injector Replacement	Estimate$2048.78	Shop/Dealer Price$2501.06 - $3844.89
1995 BMW 318tiL4-1.8L	Service typeFuel Injector Replacement	Estimate$1789.15	Shop/Dealer Price$2186.57 - $3367.85
1998 BMW 318tiL4-1.9L	Service typeFuel Injector Replacement	Estimate$1745.35	Shop/Dealer Price$2141.79 - $3322.33
1997 BMW 318tiL4-1.9L	Service typeFuel Injector Replacement	Estimate$1745.35	Shop/Dealer Price$2144.88 - $3327.75

Show example BMW 318ti 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

(7)

Rating Summary

5

2

0

0

0

5

2

0

0

0

SEE REVIEWS NEAR ME

Steven

15 years of experience

425 reviews

Steven

15 years of experience

by Tim

BMW 318ti L4-1.9L - Oil Change - Glendale, Arizona

I tried this service through an amazon coupon offer and was very impressed with it.

Trevor

23 years of experience

185 reviews

Trevor

23 years of experience

by Mitchell

BMW 318ti L4-1.9L - Pre-purchase Car Inspection - San Marcos, California

Trevor was honest and very helpful. I highly recommend him.

Danny

12 years of experience

269 reviews

Danny

12 years of experience

by John

BMW 318ti L4-1.8L - Engine is making a gurgling sound Inspection - Philadelphia, Pennsylvania

Danny was really great. He even said he wouldn't charge me if he couldn't find what was wrong, since at one point it wasn't clear. But he found the problem and explained everything.

Keith

19 years of experience

406 reviews

Keith

19 years of experience

by Isaac

BMW 318ti L4-1.8L - Car is not starting - Lakeland, Florida

Keith was awesome and was very helpful. He ran through everything that could be wrong with my engine and was able to pin point the problem. Very happy with how everything went!

Excellent Rating

(7)

Rating Summary

5

2

0

0

0

5

2

0

0

0

SEE REVIEWS NEAR ME

Recent articles & questions

P0340 OBD-II Trouble Code: Camshaft Position Sensor Circuit Malfunction

P0340 code definition Camshaft Position Sensor Circuit Malfunction What the P0340 code means The camshaft position sensor calculates the rotational speed of...

P0272 OBD-II Trouble Code: Cylinder 4 Contribution/Balance Fault

P0272 means that the PCM has identified that the reference voltage in cylinder #4’s fuel injector is out of range due to a faulty fuel injector.

The Top 5 Selling Cars in California in 2012

California California natives are notably environmentally conscious, and this often shows in their choices of vehicles as well. While trucks rarely make it to the top spots, hybrid vehicles are frequently on the list. Though previous years have seen the...

is it possible to replace the a/c clutch and bearing on a mazda protege 5 without replacing the compressor

On almost all A/C compressors, it is possible to replace the clutch without replacing the entire unit. To replace the clutch requires a special tool kit for doing just that. The A/C compressor does have to be removed from the...

2004 Ford escape motor swap

Hi Chase. Thanks for your question today. Unfortunately, we really can't help you with this, as it's not a service that our mobile mechanics offer or something we specialize. Your best option is to try to locate a Ford engine...

Would you come out and diagnosis a car if I don't know the exact problem

Part of the service YourMechanic provides is diagnostic related services as we understand that often times the symptoms you are describing may not be clear and you may not know what may be wrong with the vehicle. This may be...

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