Mercedes-Benz B250 Throttle Body 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

(5,532)

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.

Customer Ratings

(5,532)

Throttle Body Replacement Service

How much does a Throttle Body Replacement cost?

On average, the cost for a Mercedes-Benz B250 Throttle Body Replacement is $748 with $643 for parts and $104 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2017 Mercedes-Benz B250L4-2.0L TurboService typeThrottle Body ReplacementEstimate$1412.99Shop/Dealer Price$1745.62 - $2718.74
2018 Mercedes-Benz B250L4-2.0L TurboService typeThrottle Body ReplacementEstimate$2257.81Shop/Dealer Price$2807.16 - $4430.42
2014 Mercedes-Benz B250L4-2.0L TurboService typeThrottle Body ReplacementEstimate$1390.99Shop/Dealer Price$1731.90 - $2711.24
2013 Mercedes-Benz B250L4-2.0L TurboService typeThrottle Body ReplacementEstimate$1390.99Shop/Dealer Price$1731.85 - $2711.16
2015 Mercedes-Benz B250L4-2.0L TurboService typeThrottle Body ReplacementEstimate$1390.99Shop/Dealer Price$1731.93 - $2711.29
2016 Mercedes-Benz B250L4-2.0L TurboService typeThrottle Body ReplacementEstimate$1390.99Shop/Dealer Price$1731.90 - $2711.24
Show example Mercedes-Benz B250 Throttle Body Replacement prices

What is the throttle body and how does it work?

The throttle body is an air metering device mounted between the air filter and snorkel, and the intake plenum. Within the throttle body is a movable throttle plate whose position controls the amount of air that enters the engine to determine engine speed. Throttle body designs vary. Some incorporate an idle air control valve, throttle position sensor, and other electronic throttle controls. The throttle plate in the throttle body can be controlled directly by an accelerator pedal cable or fully electronically in the newest drive-by-wire systems.

When to consider replacing the throttle body:

  • Check engine light and/or reduced power warning light is on. Most modern throttle bodies have electrical components, such as a throttle position sensor. These components are monitored by the powertrain control module (PCM). If the check engine light or reduced power warning light comes on, a mechanic will determine if any of the stored trouble codes implicate a throttle body malfunction.
  • Wrong idle speed. Carbon deposits in the throttle body, particularly around the movable throttle plate or in the idle air control valve, can cause the engine idle speed to be too low or too high.
  • Poor transmission shifting. In some applications, transmission shift timing relies on signal outputs from the throttle body. If the throttle position sensor is defective, that might adversely affect shift timing and feel.

How do mechanics replace the throttle body?

  • The engine cover is removed, if necessary.
  • The flexible rubber snorkel from the air filter housing to the throttle body is disconnected. Typically, the connection is made with a large stainless steel hose clamp.
  • The electrical connections to the throttle body are removed.
  • If the throttle body is not a drive-by-wire system, the accelerator cable and cruise control cable are disconnected and set aside.
  • The bolts retaining the throttle body to the plenum, the gasket, and the throttle body are removed. If the throttle body is being cleaned and tested for re-use, approved chemicals are used in the cleaning process.
  • The new or serviced throttle body is re-attached to the plenum and the bolts torqued to factory specifications.
  • All cables and electrical connections are restored. The intake air snorkel is reconnected.
  • If applicable, the electronic throttle installation and idle re-learn procedures are performed using an appropriate scan tool.
  • Finally, the engine is started, brought to normal operating temperature, and idle speed is checked. The car is road tested to ensure normal operation and no illumination of warning or service lights.

Is it safe to drive with a throttle body problem?

Yes. But, the vehicle may be limited in power or put into what is referred to as limp mode, in order to get the vehicle to a repair facility. If the check engine light is on, or the electronic throttle control warning light is on, but there is no noticeable difference in engine performance, the car can be safely driven. However, it is best to have it diagnosed and repaired at your earliest convenience to avoid unexpected breakdown or possible damage to the catalytic converter.

When replacing the throttle body keep in mind:

  • Many modern throttle bodies have spring loaded sensors and plastic gears that are not intended to be manipulated directly during any diagnostics or inspections. These components are controlled electronically or generate signals. It is best to let a mechanic use approved tests to diagnose the problem.
  • Wiring faults, bad grounds, or bad terminal connections can make it appear as though an electronically controlled throttle has failed. A mechanic will always rule out all other causes before replacing the throttle body.
  • When cleaning the throttle body, special care should be taken to use only special spray cleaners designed to not damage electrical components or sensors.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(5,532)

Rating Summary
5,147
187
54
28
116
5,147
187
54
28
116

Matthew

33 years of experience
1210 reviews
Matthew
33 years of experience
Mercedes-Benz CLK320 V6-3.2L - Throttle Body - Hampton, Virginia
Matt was great and very knowledgeable. Thank you for fixing the immediate issue although I know it’s not quite there yet I trust only Matt to work on my car. Thank you Matt!

Jason

15 years of experience
344 reviews
Jason
15 years of experience
Mercedes-Benz E320 L6-3.2L - Throttle Body - Flushing, New York
He’s Professional at his job. Provides knowledge and advice

John

20 years of experience
563 reviews
John
20 years of experience
Mercedes-Benz C250 L4-1.8L Turbo - Oil Change - Orlando, Florida
Nice guy did good work...would definitely use him again

Rodney

36 years of experience
541 reviews
Rodney
36 years of experience
Mercedes-Benz ML350 V6-3.7L - Crankshaft Position Sensor - Rancho Cordova, California
Once again outstanding!!!!!!!

Excellent Rating

(5,532)

Rating Summary
5,147
187
54
28
116
5,147
187
54
28
116
Number of Mercedes-Benz services completed
60852+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

A Buyer’s Guide to the 2011 Mercedes-Benz ML450 Hybrid
The The 2011 Mercedes-Benz ML450 Hybrid is Mercedes' first hybrid SUV. It can perform light off-roading tasks while still being able to tow a good amount of weight. It has excellent fuel economy and drives just like the Mercedes-Benz M-Class...
Disabled Driver Laws and Permits in Washington
If If you are a person with a disability in Washington State, then you can apply for special permits that will allow you to park in designated spots, and also enjoy other rights and privileges like parking for as long...
P2702 OBD-II Problem Code: Trans Friction Element C Apply Time Range/Performance
P2702 means that a malfunction has occurred with the transmission friction element’s application due to leaks or low transmission fluid.

I want to change out my air suspension to coil springs.

Hi there. The best thing to do is go with the local parts store for the coil spring set. Any coil spring is a good spring as long as they are designed for the weight of your vehicle. Now since...

99 jeep grand Cherokee radiator leak

Hi there. A slow and progressive-expanding leak as you've described is typically an indication of a damaged radiator seal to a minor split on the radiator hose. If the radiator has not yet been replaced on the Jeep or not...

My bmw won't start

You may have caused the theft system to lock out the start circuit. Try to close and lock the car and come back in an hour and unlock and try to restart the car. If still no start then you...

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