BMW 550i Spark Plug 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

Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a BMW 550i Spark Plug Replacement is $311 with $101 for parts and $210 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2012 BMW 550iV8-4.4L Turbo	Service typeSpark Plug Replacement	Estimate$481.08	Shop/Dealer Price$542.94 - $703.01
2011 BMW 550iV8-4.4L Turbo	Service typeSpark Plug Replacement	Estimate$421.07	Shop/Dealer Price$476.40 - $631.57
2014 BMW 550iV8-4.4L Turbo	Service typeSpark Plug Replacement	Estimate$464.86	Shop/Dealer Price$521.24 - $677.19
2015 BMW 550iV8-4.4L Turbo	Service typeSpark Plug Replacement	Estimate$464.86	Shop/Dealer Price$521.23 - $677.18
2007 BMW 550iV8-4.8L	Service typeSpark Plug Replacement	Estimate$1094.48	Shop/Dealer Price$1300.63 - $1890.22
2013 BMW 550iV8-4.4L Turbo	Service typeSpark Plug Replacement	Estimate$464.86	Shop/Dealer Price$521.68 - $677.96
2009 BMW 550iV8-4.8L	Service typeSpark Plug Replacement	Estimate$1036.08	Shop/Dealer Price$1235.31 - $1819.71
2006 BMW 550iV8-4.8L	Service typeSpark Plug Replacement	Estimate$1094.48	Shop/Dealer Price$1294.95 - $1880.29

Show example BMW 550i Spark Plug Replacement prices

What are spark plugs and how do they work?

Spark plugs are one of the key components of your vehicle’s ignition system. They ignite gasoline and air inside of your engine. This gives your engine the power to propel you down the road. The spark plug takes high voltage electricity from the ignition coil and creates a spark at just right moment during the engine’s combustion cycle. This gives the engine the best mix of power, fuel economy and low emissions. However, the electrode at the end of the spark plug eventually wears out and can cause performance issues.

Spark plugs-MATROX-1

When should you replace spark plugs?

Replacement should follow the vehicle maintenance schedule. This will be listed in the vehicle’s owner’s manual. Some cars require regular replacement at 30k, 60k or 100k miles. It is possible in some cases that a spark plug might fail before the service schedule, but it’s not typically common.

Avoiding spark plug replacement can cause:

Difficulty starting your car.
Check engine light for a misfire code.
Flashing check engine light during acceleration for misfire, this can cause engine damage.
Reduced fuel economy and/or power.
Rough idle and/or unexplained engine vibration.
Failed State emission testing.

Even if only one spark plug is found to be faulty, they should always be replaced in sets. Most engines will require 4,6, or 8 spark plugs.

How do mechanics replace spark plugs?

Spark plugs are threaded into the engine’s cylinder head(s). Most cars have one plug per cylinder, so a four-cylinder engine will have four plugs, a six-cylinder engine will have six plugs, and so forth. The mechanic will:

Have the correct spark plugs on hand for your vehicle
Pull any diagnostic trouble codes that may be related to worn spark plugs.
Remove the original spark plugs and look at removed spark plugs for any clues indicating engine mis-operation exists; such as oil burning, excessively rich mixture, pre-ignition damage etc. Inform owner of any found unusual conditions.
Install new plugs using a torque wrench.
Finally, a road test of the vehicle to confirm normal operation.

Is it safe to drive with worn spark plugs?

Yes, but spark plugs that are worn enough to cause engine-misfiring have the potential to cause engine damage and overheating of the catalytic converter. Regardless of the age of the plugs, or mileage, if the engine misfires or runs poorly, the plugs should be inspected for defects. Generally, spark plug failure will not keep the engine from running, but in cases of extreme wear, you may experience a limitation in the speed at which you can drive the car. If the maintenance schedule says the plugs should be replaced, it is best to do so promptly.

When having spark plugs replaced keep in mind:

High-speed driving may accelerate spark plug wear. Consider earlier than required inspection and tune-up if you operate the car in severe conditions.
Plugs should always be promptly replaced per the manufacturer maintenance schedule even if they appear to be working perfectly.
If your vehicle is equipped with spark plug wires (as opposed to a coil-on-plug system), the wires should be replaced at the same time. This may increase the cost of your repair.
It is possible that when doing a spark plug replacement, your vehicle may also need additional parts like ignition coils, this will add to the repair cost.
Some engines require that the intake manifold be removed while replacing spark plugs. This may increase the parts and labor cost for the repair.
Leaking valve cover gaskets, which have let oil get in contact with the spark plugs, coils or wires, may be the cause of ignition system issues. Valve cover gaskets will need to be replaced in addition to the spark plugs, wires or coils. This will add to the repair cost.

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

(72)

Rating Summary

66

3

1

0

2

66

3

1

0

2

SEE REVIEWS NEAR ME

Luis

6 years of experience

132 reviews

Luis

6 years of experience

by RICARDO BIGI

550i 2011 - Cabin Air Filter - Scarsdale, NY

Luis did a great job, was very attentive and experienced

Luis

6 years of experience

132 reviews

Luis

6 years of experience

by RICARDO BIGI

550i 2011 - Transmission Fluid Service - Scarsdale, NY

Luis did a great job, was very attentive and experienced

Derrick

5 years of experience

124 reviews

Request Derrick

Derrick

5 years of experience

Request Derrick

by Leonard Evans

550i 2008 - Brake Pads - Oakland, CA

I would like him to be my mechanic on every Job. Very professional and knowledgeable

Brian

20 years of experience

539 reviews

Brian

20 years of experience

by David fenner

550i 2008 - Car is overheating - Jacksonville, FL

Very professional and attentive to my concerns

Excellent Rating

(72)

Rating Summary

66

3

1

0

2

66

3

1

0

2

SEE REVIEWS NEAR ME

Recent articles & questions

How to Choose the Best Car Shipping Company

Getting Getting an automobile across a long distance can seem difficult to arrange since you only have a few options to choose from, including driving the vehicle yourself or having someone drive it for you. But a third option that...

How to Get a New Jersey Driver's Permit

New New Jersey uses a graduated driver’s license program, like many other states. This program requires all new drivers under 18 years old to begin driving under supervision, in order to practice safe driving before getting their full driver’s license....

Understanding the Hummer Oil Life Monitor Service Indicator Lights

Car symbols, or dashboard lights, are a car service reminder. The Hummer Oil Life Monitor (OLM) system indicates when and what service your car needs.

How do I adjust the interior light dimming time?

When you open a door to your vehicle, the interior lights will come on, even if there isn’t a key in the ignition. When you then close the doors, the lights will stay on for a short period of time,...

Fixing lifters on a 2006 Chevy Tahoe

No, unfortunately, there is not a quick fix for this. The lifters are inside of the engine. When I was a kid, cars had mechanically adjustable valves. When you paid a mechanic to pull those valves covers off, the valves...

Where is the circuit one camshaft position sensor located?

Hello. The camshaft position sensor is located on the passenger side of the engine bay, on the cylinder head near the coolant reservoir tank. The reservoir tank needs to be removed in order to access it. If you need help...

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 (855) 347-2779 · hi@yourmechanic.com