BMW 650i Spark Plug Replacement Costs

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Spark Plug Replacement Service

How much does a Spark Plug Replacement cost?

On average, the cost for a BMW 650i Spark Plug Replacement is $339 with $101 for parts and $238 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
2006 BMW 650iV8-4.8L	Service typeSpark Plug Replacement	Estimate$1052.30	Shop/Dealer Price$1256.97 - $1845.45
2013 BMW 650iV8-4.4L Turbo	Service typeSpark Plug Replacement	Estimate$450.26	Shop/Dealer Price$506.24 - $661.89
2016 BMW 650iV8-4.4L Turbo	Service typeSpark Plug Replacement	Estimate$450.26	Shop/Dealer Price$506.31 - $662.02
2014 BMW 650iV8-4.4L Turbo	Service typeSpark Plug Replacement	Estimate$450.26	Shop/Dealer Price$506.31 - $662.01
2015 BMW 650iV8-4.4L Turbo	Service typeSpark Plug Replacement	Estimate$450.26	Shop/Dealer Price$510.69 - $669.69
2017 BMW 650iV8-4.4L Turbo	Service typeSpark Plug Replacement	Estimate$672.98	Shop/Dealer Price$782.58 - $1103.73
2009 BMW 650iV8-4.8L	Service typeSpark Plug Replacement	Estimate$1036.08	Shop/Dealer Price$1235.31 - $1819.71
2007 BMW 650iV8-4.8L	Service typeSpark Plug Replacement	Estimate$1036.08	Shop/Dealer Price$1235.26 - $1819.62

Show example BMW 650i 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.

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Kris

17 years of experience

97 reviews

Kris

17 years of experience

by James

BMW 650i V8-4.4L Turbo - Spark Plugs - Atlanta, Georgia

Excellent mechanic. Very knowledgeable. Good personality and takes time to explain all things happening with your vehicle. A++++++ experience!

Ivan

13 years of experience

28 reviews

Ivan

13 years of experience

by Frank

BMW 650i V8-4.4L Turbo - Check Engine Light is on - Las Vegas, Nevada

Was great meeting Ivan made the check up smooth and easy

Oreste

15 years of experience

149 reviews

Oreste

15 years of experience

by Reggie

BMW 650i V8-4.8L - 30,000 Miles Maintenance Service - Hollywood, Florida

Orestes was awesome. He arrived on time and had completed his task very quickly as if he had done this forever. Courteous and professional. I don't trust mechanics and auto shops, so this was a blessing to actually be present during the entire process. The first mechanic I used that his work van is a body shop within itself and everything in its place.

Zachary

10 years of experience

43 reviews

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Zachary

10 years of experience

Request Zachary

by Robin

BMW 650i V8-4.8L - Alternator - Houston, Texas

Great service from Zachary. He arrived early, kept me well informed. Worked quickly and got me back on the road.

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