Mercedes-Benz S400 Idle Control 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

(8)

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

(8)

Idle Control Valve Replacement Service

How much does a Idle Control Valve Replacement cost?

On average, the cost for a Mercedes-Benz S400 Idle Control Valve Replacement is $1036 with $941 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2010 Mercedes-Benz S400V6-3.5L HybridService typeIdle Control Valve ReplacementEstimate$1997.53Shop/Dealer Price$2485.67 - $3910.70
2011 Mercedes-Benz S400V6-3.5L HybridService typeIdle Control Valve ReplacementEstimate$1977.53Shop/Dealer Price$2465.70 - $3890.75
2012 Mercedes-Benz S400V6-3.5L HybridService typeIdle Control Valve ReplacementEstimate$1977.53Shop/Dealer Price$2465.70 - $3890.75
2013 Mercedes-Benz S400V6-3.5L HybridService typeIdle Control Valve ReplacementEstimate$1977.53Shop/Dealer Price$2465.66 - $3890.68
Show example Mercedes-Benz S400 Idle Control Valve Replacement prices

What is the Idle Control Valve all about?

The Idle Control Valve is designed to control and maintain a consistent engine idle speed. The valve helps counter anything the driver may do to put extra load on the engine, such as turn on the air conditioning, sound systems, lights, etc. When the car is cold, the idle control valve helps the engine start.

Keep in mind:

The idle control valve usually goes bad because of excessive carbon buildup in the intake manifold.

How it's done:

  • Scan the computer system in the car for codes.
  • Check for any vacuum leaks.
  • Check electrical connections.
  • Remove and replace the idle air control valve if faulty.
  • Clean carbon out of intake manifold ports.
  • Clear Engine Check light.

Our recommendation:

It is a good idea to get an air induction service performed every 3 to 4 years. This will ensure that the carbon does not build up on the valve. When you are getting the idle control valve replaced, your mechanic should inspect the vacuum lines for leaks. If the vacuum is leaking, it will mimic the symptoms of a bad IAC valve.

What common symptoms indicate you may need to replace the Idle Control Valve?

  • When the engine is idle, (car not moving), the engine may stall.
  • Excessive racing noise from the engine.
  • Engine may shut off if AC is turned on.
  • Check Engine light is on.

How important is this service?

The idle control valve is responsible for maintaining a constant and consistent engine. It achieves this by ensuring that the idle speed is always constant. Many factors – such as a cold engine, the radio, or the air conditioning – effect the idling speed of the engine, so the idle control valve neutralizes these outside factors, and makes sure that the engine is consistently idling at a stable speed. When the idle control valve malfunctions, the idling speed is no longer regulated. This means that if you turn on the radio or the air conditioning, which requires power, your engine may stall. It also means that your vehicle may not be able to turn on.

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

(8)

Rating Summary
8
0
0
0
0
8
0
0
0
0

Joe

23 years of experience
85 reviews
Joe
23 years of experience
Mercedes-Benz S400 V6-3.5L Hybrid - Auxiliary Battery Replacement - Fort Worth, Texas
Very polite. Knew what he was doing.

Richard

20 years of experience
126 reviews
Richard
20 years of experience
Mercedes-Benz S400 V6-3.5L Hybrid - 110,000 Miles Maintenance Service - Weatherford, Texas
Very efficient and polite gentleman.. knew what he was doing.

Attila

19 years of experience
933 reviews
Attila
19 years of experience
Mercedes-Benz S400 V6-3.5L Hybrid - Pre-purchase Car Inspection - Teterboro, New Jersey
Attila did a great job and called after it was completely inspected! Very professional and would here him again.

Eduardo

19 years of experience
554 reviews
Eduardo
19 years of experience
Mercedes-Benz S400 V6-3.5L Hybrid - Oil Change - Houston, Texas
Very good with everything

Excellent Rating

(8)

Rating Summary
8
0
0
0
0
8
0
0
0
0
Number of Mercedes-Benz S400 services completed
88+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

Symptoms of a Bad or Failing AC Condenser
If your AC is cooling your car significantly less than usual or there are leaks from the AC system, you may need to replace your AC condenser.
P0063 OBD-II Trouble Code: HO2S Heater Control Circuit Low (Bank 2 Sensor 3)
P0063 P0063 trouble code definition Trouble code P0062 indicates that the heater element used to heat up an oxygen sensor has malfunctioned. To switch on an oxygen sensor either a power or a ground is supplied to the sensor. A...
How to Turn Left Safely
Driving Driving your vehicle can present dangerous situations, such as when turning left against oncoming traffic. Fortunately, modern vehicles come with turn signals (https://www.yourmechanic.com/article/3-essential-things-to-know-about-your-car-s-turn-signal) to notify the drivers around you of your intent to turn. Traffic lights and signs also...

Need a diagnosis.

I would ask for help from one of the mechanics at YourMechanic. They have the experience and equipment to diagnose exactly why your vehicle will not start (https://www.yourmechanic.com/services/car-is-not-starting-inspection).

Transmission Problems - 2002 Honda Accord

Hey there. Your car does have a lot of miles, but as long as you take care of it, it should last longer. If you have it rebuilt, I'm sure it'll last another 100,000 miles. You have a good car...

My 1999 Mitsubishi Eclipse won't start. Cranks and idles but does not start. I have replaced every electrical and sensors possible

Hi There, This may be related to many different possibilities, some of which may be related to a lack of spark or possibly timing issues and some of which may be related to a fuel delivery problem or a combination...

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