BMW 318is Throttle Position Sensor (TPS) Replacement at your home or office.

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Throttle Position Sensor (TPS) Replacement Service

How much does a Throttle Position Sensor (TPS) Replacement cost?

On average, the cost for a BMW 318is Throttle Position Sensor (TPS) Replacement is $179 with $84 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1998 BMW 318isL4-1.9LService typeThrottle Position Sensor (TPS) ReplacementEstimate$283.29Shop/Dealer Price$342.87 - $482.22
1992 BMW 318isL4-1.8LService typeThrottle Position Sensor (TPS) ReplacementEstimate$399.33Shop/Dealer Price$492.95 - $734.35
1997 BMW 318isL4-1.9LService typeThrottle Position Sensor (TPS) ReplacementEstimate$399.33Shop/Dealer Price$492.95 - $734.35
1993 BMW 318isL4-1.8LService typeThrottle Position Sensor (TPS) ReplacementEstimate$399.33Shop/Dealer Price$492.91 - $734.28
1994 BMW 318isL4-1.8LService typeThrottle Position Sensor (TPS) ReplacementEstimate$399.33Shop/Dealer Price$492.97 - $734.40
1999 BMW 318isL4-1.9LService typeThrottle Position Sensor (TPS) ReplacementEstimate$263.29Shop/Dealer Price$322.90 - $462.27
1995 BMW 318isL4-1.8LService typeThrottle Position Sensor (TPS) ReplacementEstimate$404.33Shop/Dealer Price$497.71 - $738.93
1996 BMW 318isL4-1.9LService typeThrottle Position Sensor (TPS) ReplacementEstimate$404.33Shop/Dealer Price$498.36 - $740.07
Show example BMW 318is Throttle Position Sensor (TPS) Replacement prices

What is the Throttle Position Sensor all about?

For a car to run smoothly, it needs the proper mixture of air and fuel. The amount of air in the engine is controlled by the air intake system. A throttle body is part of the air intake system that helps control the amount of air that gets into the engine. The throttle body has a throttle plate. If the plate is closed, it prevents the air from getting into the engine. When you push the gas pedal, it opens the plate, allowing the air to enter the engine. The amount of air depends on the position of the plate, which is controlled by the gas pedal. The harder you push the gas pedal, the wider the plate will open, and more air will flow to the engine. This means more power and more speed.

The throttle position sensor reports the position of the gas pedal to the computer in your car (Engine Control Unit). The computer then determines the position of the throttle plate. It also calculates the amount of air flow to the engine and the amount of fuel to be injected for the required ratio of air-fuel mixture.

The throttle position sensor also controls the shifting of the gears. If this sensor stops working, the car's computer will not be able to calculate the right amount of fuel to be injected in the system. It may not be able to change the gears. Your car will not get the right amount of power. It may not even start. The Check Engine light may come on.

Keep in mind:

  • When the throttle position sensor is repaired or replaced, it will need to have the minimum idle speed reset to factory specs, and the trouble codes will need to be cleared.
  • When a new throttle position sensor is placed in your vehicle, it should be checked for software updates.

How it's done:

  • Scan the computer system for codes.
  • Test the throttle position sensor and related wiring.
  • Remove and replace the throttle position sensor if found faulty.
  • Clean the carbon from throttle body.
  • Re-install throttle body and reset minimum idle speed to factory specs.
  • Clear trouble codes and check for proper operation.
  • Test drive vehicle.

Our recommendation:

If you notice that the gears are not changing properly, get the throttle position sensor (TPS) inspected. A good mechanic will clean the throttle body during a tune-up. If the Check Engine light is on, get the car inspected as soon as you can.

What common symptoms indicate you may need to replace the Throttle Position Sensor?

  • Engine may be stalling or misfiring.
  • Poor engine performance.
  • Lack of power.
  • Transmission (gear) may not be shifting correctly.

How important is this service?

Your vehicle depends on an optimal mixture of air and fuel in order to run optimally. The amount of air that enters the engine is controlled by the air intake system. The faster your engine is moving, the more air it needs, so your air intake system is in tune with your gas pedal. Your throttle position sensor is constantly sending information about your gas pedal to the vehicle’s engine control unit. The computer then chooses the optimal position for the throttle plate, which is the part of the air intake system that lets air into the engine.

When the throttle position sensor malfunctions, the engine control unit has no information about the gas pedal, and the throttle plate is not utilized. As a result, your vehicle will not get the right amount of air into the engine, and your engine will lose power and run very poorly. In some cases, this will keep your vehicle from being able to change gears.

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James

12 years of experience
233 reviews
James
12 years of experience
BMW 318is L4-1.8L - Radiator Hose Repair - Daly City, California
James was a great mechanic, he arrived early and showed me what needed to be repaired. He was very professional and experienced at what he does. The work he did was outstanding and he fixed my squealing belts. He brought all the tools that was needed even the special tools BMW uses to fix the problem I had. I would recommend using his service again for any other problems I have with my BMW.

Peter

43 years of experience
1321 reviews
Peter
43 years of experience
BMW 318is L4-1.8L - Car is not starting - Scottsdale, Arizona
Peter was awesome, thorough and completely honest. He knew exactly what to look for, I felt i had a complete diagnosis of what was wrong with my car.

James

12 years of experience
233 reviews
James
12 years of experience
BMW 318is L4-1.8L - Thermostat - Daly City, California
This was my 2nd meeting with James and yet again he fixed my problem. My car has been giving me overheating problems and he fixed the problem and recommended I do other services so I don't have a problem with overheating for a long time. His personally & professionalism is what make James, he come's on time and gets his job started and when I keep him company he likes shows and teaches me how to diagnose simple fixes. Any time I have a car problem I'm giving James a call.

David

28 years of experience
142 reviews
David
28 years of experience
BMW 318is L4-1.8L - Thermo Fan Switch - San Diego, California
David's technological and mechanical trouble shooting abilities and professionalism is beyond reproach. He is not only thorough but easily explains what troubles found but also explains how the found discrepancy affects the car. If I need to call 'Your Mechanic' again, I will insist that David come again. He is the best car mechanic I have met to date.

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