Mercedes-Benz 400SE 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

(5,670)

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

(5,670)

Idle Control Valve Replacement Service

How much does a Idle Control Valve Replacement cost?

On average, the cost for a Mercedes-Benz 400SE Idle Control Valve Replacement is $442 with $347 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1992 Mercedes-Benz 400SEV8-4.2LService typeIdle Control Valve ReplacementEstimate$809.87Shop/Dealer Price$1001.09 - $1535.38
Show example Mercedes-Benz 400SE 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

(5,670)

Rating Summary
5,278
191
54
28
119
5,278
191
54
28
119

Steven

21 years of experience
200 reviews
Steven
21 years of experience
Mercedes-Benz C300 V6-3.5L - Battery - Fort Worth, Texas
Good

Frank

40 years of experience
57 reviews
Frank
40 years of experience
Mercedes-Benz C280 V6-3.0L - Adjust Drive Belts - Duluth, Georgia
On time, Quick, convenient, . Frank oa a great man and good and very knowledgeable to his work. His service was excellent and he had patience .

Aaron

29 years of experience
109 reviews
Aaron
29 years of experience
Mercedes-Benz E350 V6-3.5L - Loud clicking noise when I turn the car - Tallahassee, Florida
Very professional and courteous

Frank

15 years of experience
31 reviews
Frank
15 years of experience
Mercedes-Benz 450SL V8-4.5L - Brake Master Cylinder - Downers Grove, Illinois
he was on time ,polite ,professional.did the work quickly .work was done correctly..my car is difficult to work on.small car with no room to maneuver but he was able to get inside and get it done.

Excellent Rating

(5,670)

Rating Summary
5,278
191
54
28
119
5,278
191
54
28
119
Number of Mercedes-Benz services completed
62370+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

P0003 OBD-II Trouble Code: Fuel Volume Regulator Control Circuit Low
P0003 P0003 trouble code definition The P0003 code is associated with the electrical circuit which connects to your fuel pressure regulator. It also may be related to other codes, such as: P0001, P0002, or P0004. What the P0003 code means...
P0123 OBD-II Trouble Code: Throttle Pedal Position Sensor/Switch (TPS) A Circuit High Input
P0123 code definition Throttle Pedal Position Sensor/Switch (TPS) A Circuit High Input What the P0123 code means P0123 is the generic OBD-II...
P0438 OBD-II Trouble Code: Catalyst Temperature Sensor High (Bank 2)
P0438 means the catalytic convertor is not functioning properly at 100% efficency

How do I disable the automatic door unlock?

Your car may have an automatic door unlock feature. With this feature, opening the driver’s door from the inside will automatically unlock all of the doors. This will only happen if your vehicle is in PARK (if you have an...

Can the nozzles of a v4 Honda accord 2008 be serviced? If yes, can it be serviced by using a battery

You can service the injectors on the car with an injector machine only and not a direct battery connection or injectors will be damaged. They are designed to only have intermittent power and ground at the same time and not...

Howdy! My '89 Toyota SR 5 truck (3.0L, 5-speed manual 4WD w A/C) needs a water pump. Last one lasted 60,000 miles. Is this too short alife for a replacement? How much should I expect to spend for local mechanic (La Mesa CA) to replace it? Thank 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