Mercedes-Benz S420 Variable Valve Timing (VVT) Solenoid Replacement at your home or office.

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Variable Valve Timing (VVT) Solenoid Replacement Service

How much does a Variable Valve Timing (VVT) Solenoid Replacement cost?

On average, the cost for a Mercedes-Benz S420 Variable Valve Timing (VVT) Solenoid Replacement is $183 with $69 for parts and $114 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1996 Mercedes-Benz S420V8-4.2LService typeVariable Valve Timing (VVT) Solenoid ReplacementEstimate$2096.93Shop/Dealer Price$2607.67 - $4092.62
1999 Mercedes-Benz S420V8-4.2LService typeVariable Valve Timing (VVT) Solenoid ReplacementEstimate$251.99Shop/Dealer Price$307.53 - $426.81
1995 Mercedes-Benz S420V8-4.2LService typeVariable Valve Timing (VVT) Solenoid ReplacementEstimate$2072.93Shop/Dealer Price$2583.70 - $4068.68
1997 Mercedes-Benz S420V8-4.2LService typeVariable Valve Timing (VVT) Solenoid ReplacementEstimate$251.99Shop/Dealer Price$307.48 - $426.72
1998 Mercedes-Benz S420V8-4.2LService typeVariable Valve Timing (VVT) Solenoid ReplacementEstimate$251.99Shop/Dealer Price$307.56 - $426.86
1994 Mercedes-Benz S420V8-4.2LService typeVariable Valve Timing (VVT) Solenoid ReplacementEstimate$2072.93Shop/Dealer Price$2583.70 - $4068.68
Show example Mercedes-Benz S420 Variable Valve Timing (VVT) Solenoid Replacement prices

What is the Variable Valve Timing (VVT) Solenoid all about?

Variable valve timing (VVT) helps to provide smoother idling, better power delivery for everyday needs, improved fuel economy, and superior emissions control. In order to achieve all of these tasks, your VVT system requires a number of different components including the variable valve timing solenoid. The VVT solenoid is responsible for changing the position of the camshafts in the engine. It works on oil pressure, and can either advance or retard cam position to provide the right performance from the engine. Each camshaft is equipped with a VVT solenoid, which is capable of altering the supply of oil pressure to the camshaft depending on the speed and load of the engine. If the VVT solenoid is not working properly, the Check Engine light will come on and your engine will perform noticeably worse.

Keep in mind:

  • The most common cause for VVT solenoid problems is dirty oil, which clogs the screen that sits between the solenoid and the VVT pressure switch.
  • If the solenoid doesn’t operate, the VVT system will remain disengaged, which can adversely impact engine performance, fuel economy and more.

How it's done:

  • The faulty variable valve timing actuator (VVT) solenoid is located and identified
  • The variable valve timing actuator (VVT) solenoid is removed
  • The new variable valve timing actuator (VVT) solenoid is installed
  • The engine is tested with a scanner for proper variable valve timing actuator (VVT) solenoid operation
  • The vehicle is road tested and checked for proper variable valve timing actuator (VVT) sensor operation

Our recommendation:

Because the solenoid is located at the camshaft (near the VVT switch), it cannot be inspected on a regular basis. The only time it will be inspected is if you are experiencing problems with the VVT system, or the Check Engine light illuminates and the computer provides a camshaft position or VVT system related code. If you do experience variable valve timing issues, have one of our expert mechanics diagnose and repair the issue.

What common symptoms indicate you may need to replace the Variable Valve Timing (VVT) Solenoid?

  • Vehicle gets poor fuel economy
  • Engine performance is diminished
  • Check Engine light is on

How important is this service?

If your vehicle is equipped with a variable valve timing system, it needs to operate as designed for proper performance and fuel efficiency. If your vehicle’s VVT solenoid is faulty, have it replaced as soon as possible to regain your lost performance.

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Excellent Rating

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Kenneth

20 years of experience
762 reviews
Kenneth
20 years of experience
Mercedes-Benz S420 V8-4.2L - Oil Change - Los Angeles, California
He is the real deal... On time, did great work, very all together" good man and mechanic...... Thanks Kenneth.

Jamie

22 years of experience
77 reviews
Jamie
22 years of experience
Mercedes-Benz S420 V8-4.2L - Serpentine/Drive Belt Replacement - Ontario, California
Great job

Tam

22 years of experience
251 reviews
Tam
22 years of experience
Mercedes-Benz S420 V8-4.2L - Fuel Filter - San Francisco, California

Eric

15 years of experience
133 reviews
Eric
15 years of experience
Mercedes-Benz S420 V8-4.2L - Oil Change - Bowie, Maryland
Kept me informed for his arrival. Was very friendly.

Excellent Rating

(13)

Rating Summary
12
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Number of Mercedes-Benz S420 services completed
143+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1000+
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