Mercedes-Benz C300 Car Air Pump Check Valve 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

(521)

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

(521)

Car Air Pump Check Valve Replacement Service

How much does a Car Air Pump Check Valve Replacement cost?

On average, the cost for a Mercedes-Benz C300 Car Air Pump Check Valve Replacement is $333 with $228 for parts and $105 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2012 Mercedes-Benz C300V6-3.0LService typeCar Air Pump Check Valve ReplacementEstimate$581.29Shop/Dealer Price$710.07 - $1063.32
Show example Mercedes-Benz C300 Car Air Pump Check Valve Replacement prices

What is the Air Pump Check Valve all about?

In a secondary air injection system, air must be injected into the exhaust system, but exhaust fumes must not be able to escape. This is accomplished by using a one-way air pump check valve. Think of it as a one-way street -- air can enter, but exhaust gases can't leave.

These secondary injection systems are used to ensure a fuller burn of spent exhaust gases, which both improves fuel economy and eliminates pollution from the vehicle exhaust. It’s an important part of your emissions system. Generally, the air pump check valve is mounted near the top passenger side of the engine, although this can vary. Some vehicles have more than one check valve, as well.

Over time, the air pump check valve is subject to not only high heat, but also other forms of damage. It can deteriorate and degrade. While there is no set lifespan for these components, they can and do fail.

Keep in mind:

  • The air pump check valve is not inspected during normal maintenance.
  • A failed valve will cause the Check Engine light to turn on.
  • Your car cannot pass an emissions test with a bad check valve.

How it's done:

  • The air pump check valve is verified to see if it needs to be replaced
  • The defective air pump check valve is removed
  • The new air pump check valve is installed
  • The air pump check valve is tested for operation
  • The vehicle is tested to ensure proper operation of the air pump check valve

Our recommendation:

A secondary air injection system is an important part of your emissions control, and the air pump check valve is a critical component. If it fails, it’s possible for exhaust gases to escape, or for fresh air to be blocked from entering the exhaust system. If you suspect a problem with your air pump check valve, have it diagnosed and repaired by one of our expert mechanics.

What common symptoms indicate you may need to replace the Air Pump Check Valve?

  • Check Engine light on with check valve failure code
  • Will not pass emissions test

How important is this service?

While you won’t notice much in the way of performance degradation if the check valve fails, your Check Engine light could come on, and your car will not pass emissions testing. Because of this, you should replace a faulty air pump check valve as soon as possible.

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

(521)

Rating Summary
493
16
5
1
6
493
16
5
1
6

Shawn

12 years of experience
315 reviews
Shawn
12 years of experience
Mercedes-Benz C300 V6-3.0L - Air Pump Check Valve - Downingtown, Pennsylvania
On time and efficient! Will definitely ask for Shawn next time I need work done, and highly recommend him to others.

Ruben

17 years of experience
169 reviews
Ruben
17 years of experience
Mercedes-Benz C300 V6-3.0L - Oil Change - Columbia, South Carolina
Great.

Kenneth

20 years of experience
801 reviews
Kenneth
20 years of experience
Mercedes-Benz C300 V6-3.0L - Oil/Fluid Leak - Long Beach, California
Excellent service.

James

12 years of experience
233 reviews
James
12 years of experience
Mercedes-Benz C300 V6-3.0L - Brake Pads Replacement (Rear) - San Francisco, California

Excellent Rating

(521)

Rating Summary
493
16
5
1
6
493
16
5
1
6
Number of Mercedes-Benz C300 services completed
5731+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

What are the Car Pool Rules in Wisconsin?
Wisconsin Wisconsin may be a relatively rural state, but it still has a fair share of large cities. Every weekday, tens of thousands of Wisconsin citizens have to commute into Milwaukee, Green Bay, and other cities for work, and out...
How to Replace the Oil Temperature Sensor on Most Cars
Oil, as well as the oil temperature sensor, is crucial to the engine lubrication system. A bad sensor can lead to leaks and poor vehicle performance.

Headlight flickers, then goes completely out

If the vehicle has conventional halogen headlamps, then I'd look for a loose or broken ground to the headlights, either at each individual headlamp, or the headlamp circuit. If the vehicle is equipped with HID (high intensity discharge) headlights, then...

My car has a throttle position sensor issue so I replaced the entire throttle body and the light came back on. Any ideas?

There is a relearn/calibration procedure that is typically performed whenever the throttle position sensor is replaced. If that procedure was not performed, it might be relevant in your case. The code (P0121) that you are referring to implicates not just...

Abs lite is on major problem?

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 (844) 997-3624 · hi@yourmechanic.com