logo

BMW 745Li Manifold Absolute Pressure Sensor (MAP Sensor) Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(38)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

See availability

Customer Ratings

(38)

Manifold Absolute Pressure Sensor (MAP Sensor) Replacement Service

How much does a Manifold Absolute Pressure Sensor (MAP Sensor) Replacement cost?

On average, the cost for a BMW 745Li Manifold Absolute Pressure Sensor (MAP Sensor) Replacement is $351 with $99 for parts and $252 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2003 BMW 745LiV8-4.4LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$477.36Shop/Dealer Price$538.29 - $695.57
2002 BMW 745LiV8-4.4LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$461.14Shop/Dealer Price$516.51 - $669.61
2004 BMW 745LiV8-4.4LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$461.14Shop/Dealer Price$516.59 - $669.75
2005 BMW 745LiV8-4.4LService typeManifold Absolute Pressure Sensor (MAP Sensor) ReplacementEstimate$461.14Shop/Dealer Price$516.58 - $669.74
Show example BMW 745Li Manifold Absolute Pressure Sensor (MAP Sensor) Replacement prices

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.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee

Number of BMW 745Li services completed
418+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(38)
Rating Summary
37
0
0
1
0
37
0
0
1
0

Kyle

14 years of experience
145 reviews
Request Kyle
Kyle
14 years of experience
Request Kyle
by Domminique
BMW 745Li V8-4.4L - Crankshaft Position Sensor - Dallas, Texas
He did a good job and he was fast he's the only person I want to work on my car

Peter

44 years of experience
1397 reviews
Request Peter
Peter
44 years of experience
Request Peter
by LINDA
BMW 745Li V8-4.4L - Car idle is rough - Paradise Valley, Arizona
Peter was a perfect mechanic. He knew exactly what the issue was in my car. thank YOU!!!!!!!!!!!!!!!!

Damian

12 years of experience
465 reviews
Request Damian
Damian
12 years of experience
Request Damian
by Annette
BMW 745Li V8-4.4L - Oil Change - Clinton, Maryland
GREAT!!!!

Charles

18 years of experience
176 reviews
Request Charles
Charles
18 years of experience
Request Charles
by Barron
BMW 745Li V8-4.4L - Valve Cover Gasket - Washington, District of Columbia
Charles was excellent! Very professional and courteous! He did a great job!

Excellent Rating

(38)
Rating Summary
37
0
0
1
0
37
0
0
1
0
Number of BMW 745Li services completed
418+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1200+
experts on our platform
Yourmechanic was featured in

New York Times NBC CBS Forbes INC Tech Crunch

Learn more about us

Recent articles & questions

How to Adjust Your Headlights
If you have ever cursed an oncoming driver because their lights were blinding you, or noticed that your lights tend to illuminate the...
Read more
How Exhaust Systems Work
It It all starts in the engine In order to understand how the exhaust of a vehicle works, there must be a basic understanding of the engine as a whole. The internal combustion engine in its simplest form is a...
Read more
Insurance Requirements for Car Registration in Indiana
In In order to drive a vehicle legally in the state of Indiana, you are required to renew your vehicle registration every year at the Bureau of Motor Vehicles. In order to do so, you must provide proof that you...
Read more

How do I turn on the CD player?

To turn on the CD player, press the CD/AUX button.
Read more

Oil in my radiator

Good question. Often times when you change your head gasket you are suppose to have your head resurfaced to ensure you didn't damage anything on the head when you pulled it out. Also, if there was oil in the coolant...
Read more

i have 88 cadillac just got it with brand new tranny i think they damaged seal putting it in what would be my estimated cost for

The cost depends on which seal is leaking. If, for example, the leak is at a transaxle output shaft seal, you can input your year, make and model at the service page for axle shaft seals (https://www.yourmechanic.com/services/axle-shaft-seal-replacement) to obtain a...
Read more
  1. Home
  2. Estimates
  3. BMW
  4. 745Li
  5. Manifold Absolute Pressure Sensor (MAP Sensor) Replacement

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com

Read FAQ
GET A QUOTE