Mercedes-Benz S400 Intake Manifold Gaskets 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)

Intake Manifold Gaskets Replacement Service

How much does a Intake Manifold Gaskets Replacement cost?

On average, the cost for a Mercedes-Benz S400 Intake Manifold Gaskets Replacement is $275 with $75 for parts and $199 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2013 Mercedes-Benz S400V6-3.5L HybridService typeIntake Manifold Gaskets ReplacementEstimate$392.34Shop/Dealer Price$466.81 - $607.52
2011 Mercedes-Benz S400V6-3.5L HybridService typeIntake Manifold Gaskets ReplacementEstimate$350.34Shop/Dealer Price$424.87 - $565.63
2010 Mercedes-Benz S400V6-3.5L HybridService typeIntake Manifold Gaskets ReplacementEstimate$350.34Shop/Dealer Price$424.87 - $565.62
2012 Mercedes-Benz S400V6-3.5L HybridService typeIntake Manifold Gaskets ReplacementEstimate$350.34Shop/Dealer Price$424.79 - $565.48
Show example Mercedes-Benz S400 Intake Manifold Gaskets Replacement prices

What is an intake manifold gasket and how does it work?

The intake on an engine may be made up of a lower intake manifold and an upper intake manifold or plenum. The lower intake manifold is a cast aluminum or molded plastic chamber bolted to the cylinder head of the engine. The intake manifold must be tightly sealed to the cylinder head(s) using a gasket in order to prevent air, oil, or engine coolant leaks.

When to consider replacing the intake manifold gasket:

Internal or external leaks. Due to constant temperature expansion and contraction of engine parts or overheating, the gasket’s ability to seal properly can be ruined, resulting in problems such as:

  • Internal or external engine coolant leaks. In some applications, the manifold has cooling passages within. If the manifold seal to the engine fails, coolant can leak externally or even into the engine oil crankcase, where coolant can be noticed in the engine oil.
  • Engine overheating. If the leak at the manifold is a leak of engine coolant, it can lead to engine overheating. However, there are other causes of engine overheating, so a mechanic would have to determine the actual cause.
  • External oil leaks. On some 6 and 8 cylinder engines, the intake manifold sits atop an oil-lubricated area of the engine block. If the manifold gasket has failed, oil can leak from the block to the exterior of the engine.
  • Poor engine operation, lean operation, rough idle. Vacuum air leaks into the manifold due to a defective gasket that will upset the air-fuel ratio. The engine may run poorly.
  • Check engine light. Minor leaks at the intake manifold gasket will not usually cause the check engine light to illuminate. However, as a leak persists, it may grow larger and it possible for the leak to degrade engine performance enough that it will cause a trouble code to set, which will cause the check engine light to illuminate.

How do mechanics replace the intake manifold gasket?

  • Working on a cold engine, the engine cover is removed. If the intake manifold has internal cooling system passageways, the engine coolant is drained below the level of those passageways.
  • The accelerator cable assembly and cruise control cable are removed and set aside. All electrical connections and emission and vacuum lines in the way of the intake are removed. Ignition components, such as the coil, are removed as needed. If the car has an upper plenum, that is removed and set aside.
  • If the fuel rail is bolted to the intake manifold, the supply and return connections to the fuel rail are disconnected.
  • Once all connections to the manifold are clear, the manifold is unbolted and removed from the engine.
  • Aluminum and plastic manifolds are checked with a machinist’s straightedge to ensure the surface flatness does not exceed the original equipment manufacturer’s specification. If the surface of a manifold is not flat, the new gasket will not seal properly. Plastic manifolds are checked for cracks, heat damage, and warpage.
  • Once the manifold is deemed re-usable or replaced as needed, the new gasket is applied, the manifold is put in position and the mounting bolts are torqued with a calibrated torque wrench in the OEM specified sequence. In some applications, RTV sealant must be applied in corners of the mounting surface or specified hard-to-seal spots, per the service manual.
  • All removed components are then re-installed in the reverse of the above steps.
  • Finally, the vehicle is run and checked for leaks, and test driven.

Is it safe to drive with an intake manifold gasket problem?

Yes. The principal concern with a leaking intake manifold gasket is potential damage to the engine, depending on where the leak is. Although the vehicle will generally be safe to drive, you should schedule service as soon as possible to minimize the chances of additional costly damage. If the leak involves coolant, it could lead to engine overheating damage or the coolant could contaminate the engine oil, which can damage the engine bearings. If there is an air leak to the cylinders, it can cause lean operation which could overheat the catalytic converter.

When replacing the intake manifold gasket keep in mind:

  • In engines where coolant flows through the intake manifold, a leaking intake manifold gasket can be either the cause of or result of engine overheating. If you have a leaking intake manifold gasket, and the engine has overheated, the entire engine should be inspected for damage, such as a blown head gasket. The engine cooling system thermostat should be replaced because engine overheating can damage the cooling system thermostat.
  • Some car engine designs are more likely than others to experience leaking intake manifold gaskets due to material and design issues. Your mechanic can inform you if your car represents one of these cases. Many times a re-designed gasket, or altered installation technique and torque values, will be relevant to avoid a recurrence of any leaks. Mechanics will consult Technical Service Bulletins to determine if any unique circumstance exists for your car.

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

Joseph

27 years of experience
578 reviews
Joseph
27 years of experience
Mercedes-Benz S400 V6-3.5L Hybrid - Cabin Air Filter Replacement - Houston, Texas
Grt as usual!!!

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.

Scott

36 years of experience
892 reviews
Scott
36 years of experience
Mercedes-Benz S400 V6-3.5L Hybrid - Check Engine Light is on - Chandler, Arizona
On time. Quick diagnostics.

Attila

19 years of experience
884 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.

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
1000+
experts on our platform

Recent articles & questions

How to Buy a Car Like a Pro
Most Most people are only aware of two ways of buying a car: from a dealer or through a private sale. There is another way: one that can be quite beneficial if you are flexible in your new vehicle’s options,...
The Top 10 Used Cars That Get the Fewest Traffic Tickets
Some used cars are more prone to getting traffic tickets than others. Range Rovers and BMW 320is have been recorded to get the least tickets.
What is the Oil Filter Housing all about?
How to diagnose and replace oil filter housing

How do I use the power window lock

The power window lock keeps the power windows in your vehicle from working. This can be a key safety feature when children are in the car. To use the power window lock, press the lock button next to the power...

Battery light is on durign acceleration or on bumpy roads

When the battery light comes on in vehicles it is due to the voltage falling below the required 12.6 volts. This voltage is required for all the vehicles' electrical systems to work properly. The most common causes of the battery...

when coming to a stop, my truck has a binding/clunking noise in the rear end

Hello, thank you for writing in. While the components you have looked into are great inspections considering you tow often, lets start a little simpler and work our way down the list. Since this is happening while you are braking,...

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