Spark Plug Replacement Cost for BMW 850CSi

Spark Plug Replacement Estimate (National Average)

Validated estimate range for national average.

The average cost for a Spark Plug Replacement is between $372 and $505. Labor costs are estimated between $228 and $289 while parts are priced between $144 and $216. Get a personalized estimate based on your location and specific car. Estimate does not include taxes and fees.

Parts & Labor Breakdown
Labor: $228 - $289
Parts: $144 - $216
Estimate does not include taxes and fees.
Best Practices

To prevent ignition misfires and Check Engine Light problems, we recommend using only high-quality spark plugs, and preferably spark plugs from BMW.

Spark plugs have different ratings and it's important that the correct type are used.

Spark plug terminals wear down over time and can lead to engine misfires. At minimum, they need to be replaced at the mileage specified by BMW.

Common Symptoms

Failing spark plugs can cause the BMW 850CSi's engine to run rough and misfire, which can trigger the Check Engine Light. Continuing to drive under these conditions can damage the catalytic converter.

Last step before receiving your estimate:
* Estimate for all BMW 850CSi model years. Get a more accurate price by entering in your year.Choose Year (1994-1995)
Select year:
  • 1994
  • 1995