BMW 645Ci Transmission Position Sensor (Switch) Replacement at your home or office.

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Transmission Position Sensor (Switch) Replacement Service

How much does a Transmission Position Sensor (Switch) Replacement cost?

On average, the cost for a BMW 645Ci Transmission Position Sensor (Switch) Replacement is $677 with $487 for parts and $190 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2004 BMW 645CiV8-4.4LService typeTransmission Position Sensor (Switch) ReplacementEstimate$1204.92Shop/Dealer Price$1483.66 - $2241.12
2005 BMW 645CiV8-4.4LService typeTransmission Position Sensor (Switch) ReplacementEstimate$1164.92Shop/Dealer Price$1443.72 - $2201.23
Show example BMW 645Ci Transmission Position Sensor (Switch) Replacement prices

What is the Transmission Position Sensor (Switch) all about?

Vehicles equipped with an automatic transmission are designed to start only in park or neutral gears. If a vehicle is able to start in reverse or drive gears, it can unintentionally move, causing damage to property or injuries to occupants or bystanders. For this reason, automakers have developed a safety shutdown called a transmission position sensor or range sensor that cuts the power to the starter control circuit if the vehicle is not in park or neutral. This sensor or switch is typically mounted on the side of the transmission and screws into the body of the transmission to detect in which gear the transmission is engaged. If the driver attempts to start the vehicle when the transmission is engaged in a gear other than park or neutral, power is not distributed to the starter circuit. The vehicle will not crank, preventing unintentional vehicle movement. If the transmission position sensor, or range sensor fails, the vehicle may be able to start while engaged in a drive gear.

Keep in mind:

  • Symptoms related to the transmission position sensor mimic those of other common problems.
  • Professional mechanics need to diagnose the symptoms for accurate repair.
  • The transmission position sensor is also commonly referred to as a transmission range sensor.

How it's done:

  • The faulty transmission position sensor switch is identified
  • The vehicle is lifted and supported on jack stands
  • The defective transmission position sensor switch is then removed
  • The new transmission position sensor switch is installed and the vehicle taken off the jack stands
  • The repair is verified and the vehicle is road tested for proper operation

Our recommendation:

While the transmission position sensor is does not require any routine service, as an electronic part, it can fail. If your automatic transmission-equipped vehicle is able to start in a gear other than park or neutral, or if your vehicle will not start when in park or neutral, you may need to replace the transmission position sensor.

What common symptoms indicate you may need to replace the Transmission Position Sensor (Switch)?

  • Engine will not start at all
  • Engine will only start in neutral gear, not in park
  • Engine will start in engaged in drive or reverse gear

How important is this service?

If your vehicle is able to start in gear, there is potential to cause injury to people or damage to property. If the range sensor fails, have it replaced immediately.

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Excellent Rating

(25)

Rating Summary
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Emmette

36 years of experience
282 reviews
Emmette
36 years of experience
BMW 645Ci V8-4.4L - Power Steering Belt - Stafford, Virginia
Once again Emmette was outstanding! He arrived early and did a great job. I will continue to recommend him to my friends and family

Gregory

31 years of experience
385 reviews
Gregory
31 years of experience
BMW 645Ci V8-4.4L - Brake Pads Replacement (Rear) - Littleton, Colorado
Great job!

DeVaughn

26 years of experience
25 reviews
DeVaughn
26 years of experience
BMW 645Ci V8-4.4L - Brake System Flush - San Bernardino, California
A great Technician, I will request him in the future. A true professional. Don't lose him!

John

27 years of experience
1057 reviews
John
27 years of experience
BMW 645Ci V8-4.4L - Check Engine Light is on - Hitchcock, Texas
Again, John was right on time. Took care of my issue and was great explaining what was wrong.

Excellent Rating

(25)

Rating Summary
21
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2
0
1
21
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1
Number of BMW 645Ci services completed
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services done by our mechanics
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