BMW 318i Manifold Absolute Pressure Sensor (MAP Sensor) Replacement at your home or office.

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Manifold Absolute Pressure Sensor (MAP Sensor) Replacement Estimate for BMW 318i

BMW 318i Manifold Absolute Pressure Sensor (MAP Sensor) Replacement costs $189 on average.

CarServiceEstimateShop/Dealer Price
1996 BMW 318iL4-1.9LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$289.59Shop/Dealer Price$363.99 - $532.07
1998 BMW 318iL4-1.9LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$279.59Shop/Dealer Price$351.22 - $517.22
1997 BMW 318iL4-1.9LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$279.59Shop/Dealer Price$351.22 - $517.22
1999 BMW 318iL4-1.9LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$279.59Shop/Dealer Price$351.18 - $517.15
Show example BMW 318i Manifold Absolute Pressure Sensor (MAP Sensor) Replacement prices

Manifold Absolute Pressure Sensor (MAP Sensor) Replacement Service

What is the Manifold Absolute Pressure Sensor (MAP Sensor) all about?

In order to operate, your engine needs a combination of air, fuel and spark. Today’s engines are much more complex, and require sophisticated measuring of different elements to ensure proper fuel combustion. The manifold absolute pressure (MAP) sensor is responsible for some of these tasks.

Your MAP sensor measures the amount of air entering the manifold, the air temperature, and the number of revolutions in the engine. With this information, the car’s computer can adjust fuel and airflow to maximize performance while minimizing fuel consumption.

If your engine is not fuel injected, you probably do not have a MAP sensor. However, the vast majority of engines on the road today are fuel injected. For some automakers, the MAP sensor also serves a diagnostic function, allowing mechanics to analyze the performance of the EGR valve.

Keep in mind:

  • The MAP sensor is an electronic component, and can fail unexpectedly.
  • It is impossible to determine if the manifold absolute pressure sensor has failed with a visual inspection – it will require an experienced mechanic to diagnose the issue.
  • A failing MAP sensor will trigger the Check Engine light.

How it's done:

  • The vehicle hood is raised and supported
  • The defective manifold absolute pressure sensor is removed
  • The new manifold absolute pressure sensor is installed
  • The computer is tested and codes cleared with a scanner
  • The vehicle hood is closed and road tested for proper operation

Our recommendation:

While a failed MAP sensor won’t disable your car, it’s strongly recommended that you have it diagnosed and replaced as quickly as possible. Driving with a failing or failed MAP sensor can cause your engine to run “rich” or “lean” – that is, with either too much fuel, or too much air. Both of these conditions can damage the engine. However, there are many other conditions that can mimic a failed MAP sensor, including relatively minor vacuum leaks, so it’s important that one of our expert mechanics check the malfunction code and thoroughly inspect the engine.

What common symptoms indicate you may need to replace the Manifold Absolute Pressure Sensor (MAP Sensor)?

  • Erratic or rough idling
  • Delay in acceleration or deceleration
  • Check Engine light is on
  • Excess exhaust emissions resulting in failed emissions test

How important is this service?

Your engine’s MAP sensor is an important piece of technology, and should be replaced immediately to avoid potentially damaging your engine with lean or rich operating conditions and to ensure you’re able to pass your emissions test. If you notice any of the symptoms above, or your Check Engine light is on, have your vehicle diagnosed by one of our expert mechanics.

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Real customer reviews from BMW owners like you.

Excellent Rating

(21)

Rating Summary
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Clarissa

27 years of experience
216 reviews
Clarissa
27 years of experience
BMW 318i L4-1.9L - Camshaft Position Sensor - Coatesville, Pennsylvania
Very happy. I booked a ball joint replacement that a tire store told me I needed. Clarissa checked and that was not really what the car needed; it needed a control arm bushing instead. I appreciate the honesty and saving me from work I did not need. Clarissa was easy to talk to and work with.

Jerimiah

19 years of experience
328 reviews
Jerimiah
19 years of experience
BMW 318i L4-1.8L - Car idle is rough - Las Vegas, Nevada
Like usual very professional,diagnosis problem in 15 min.awesome mechanic!

Firas

21 years of experience
11 reviews
Firas
21 years of experience
BMW 318i L4-1.8L - Throttle Position Sensor - San Leandro, California

Dellano

18 years of experience
491 reviews
Dellano
18 years of experience
BMW 318i L4-1.9L - Oil Filter Housing Gasket - Silver Spring, Maryland
Dellano was sharp, performed the work with excellence, knew right what he was doing. He was also polite and professional.

Excellent Rating

(21)

Rating Summary
20
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1
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Number of BMW 318i services completed
231+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
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