Ignition Cable (Spark plug wires) Replacement Estimate for BMW 635CSi

BMW 635CSi Ignition Cable (Spark plug wires) Replacement costs $191 on average. Following is a breakdown of the labor and parts estimates.

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YourMechanic Price
$173 to $228
Labor: $70 -$80
Parts: $103 -$148
Average Dealer price
$299 to 388
Average Shop price
$212 to 268
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CarServiceYourMechanic PriceShop/Dealer Price
1987 BMW 635CSiL6-3.5LService typeIgnition Cable (Spark plug wires) ReplacementYourMechanic Price$181.54Shop/Dealer Price$234.83 - $337.54
1989 BMW 635CSiL6-3.5LService typeIgnition Cable (Spark plug wires) ReplacementYourMechanic Price$226.58Shop/Dealer Price$291.26 - $427.84
1986 BMW 635CSiL6-3.5LService typeIgnition Cable (Spark plug wires) ReplacementYourMechanic Price$179.47Shop/Dealer Price$232.29 - $333.49
1988 BMW 635CSiL6-3.5LService typeIgnition Cable (Spark plug wires) ReplacementYourMechanic Price$226.58Shop/Dealer Price$291.22 - $427.77
1985 BMW 635CSiL6-3.5LService typeIgnition Cable (Spark plug wires) ReplacementYourMechanic Price$181.54Shop/Dealer Price$234.85 - $337.58
Show example BMW 635CSi Ignition Cable (Spark plug wires) Replacement prices
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All about Ignition Cable (Spark plug wires) Replacement

The ignition cables, also known as “spark plug wires” are part of the ignition system. They transfer the spark from the distributor or ignition coil to spark plugs that ignite the air-fuel mixture, starting the engine. Over time, the cables can get weak and break down. This will make it harder for the spark to reach the engine cylinders, resulting in engine misfires. The car may not start at all. If one of the spark plugs has gone bad, the car will still start and run, but it will run poorly.

Ignition Cable (Spark plug wires) Replacement Estimates for Popular BMW Models