Audi 4000 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 Audi 4000 Spark Plug Replacement is $109 with $14 for parts and $95 for labor. Prices may vary depending on your location.

Car	Service	Estimate	Shop/Dealer Price
1984 Audi 4000L4-1.8L	Service typeSpark Plug Replacement	Estimate$142.11	Shop/Dealer Price$166.39 - $199.86
1982 Audi 4000L4-1.6L Diesel	Service typeSpark Plug Replacement	Estimate$331.39	Shop/Dealer Price$408.02 - $598.47
1985 Audi 4000L5-2.2L	Service typeSpark Plug Replacement	Estimate$265.69	Shop/Dealer Price$325.90 - $467.07
1986 Audi 4000L4-1.8L	Service typeSpark Plug Replacement	Estimate$148.67	Shop/Dealer Price$179.58 - $232.96
1985 Audi 4000L4-1.8L	Service typeSpark Plug Replacement	Estimate$148.67	Shop/Dealer Price$179.65 - $233.08
1987 Audi 4000L4-1.8L	Service typeSpark Plug Replacement	Estimate$148.67	Shop/Dealer Price$179.62 - $233.03
1980 Audi 4000L5-2.2L	Service typeSpark Plug Replacement	Estimate$133.89	Shop/Dealer Price$159.66 - $198.05
1983 Audi 4000L5-2.2L	Service typeSpark Plug Replacement	Estimate$156.19	Shop/Dealer Price$188.19 - $243.79

Show example Audi 4000 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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Jonathan

13 years of experience

51 reviews

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Jonathan

13 years of experience

Request Jonathan

by Donald

Audi 4000 L4-1.6L Turbo Diesel - Alternator Belt - Arlington, Texas

Jonathan showed up early for his scheduled appointment. That doesn't happen often in life. Ask your doctors office. He was fully prepared for the reported issue with my car. He informed me that the job may take 20 minutes or hours, based on the complexibility of the bolt location and if they were factory standard. Most of the bolts were tightened back in 1983 and had not been loose since. He took almost 2 hours but the job was done correctly. My test drive proved the work to be correct, He will be recommended to others and will be requested to come back for any other repairs needed on my cars

Chris

22 years of experience

2223 reviews

Chris

22 years of experience

by Susan

Audi TT L4-1.8L Turbo - Spark Plugs - Murrieta, California

Chris always does an excellent job. He would not allow himself to do any less. I look forward to working with him in the future.

Ruben

14 years of experience

86 reviews

Ruben

14 years of experience

by Imran

Audi A4 L4-2.0L Turbo - Spark Plugs - Valencia, California

Ruben is Awesome. He explained what he's doing and why and also gave recommendations on how to help maintain my car

Brett

25 years of experience

213 reviews

Brett

25 years of experience

by Ken

Audi A4 Quattro L4-2.0L Turbo - Spark Plugs - Charlotte, North Carolina

Highly recommend Brett. Expert Technician! Very Professional, Prompt, friendly, & efficient! Arrived on site early and completed the repairs quicker than expected.

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