Mercedes-Benz 300SEL 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

(13)

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

(13)

Intake Manifold Gaskets Replacement Service

How much does a Intake Manifold Gaskets Replacement cost?

On average, the cost for a Mercedes-Benz 300SEL Intake Manifold Gaskets Replacement is $714 with $70 for parts and $644 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1990 Mercedes-Benz 300SELL6-3.0LService typeIntake Manifold Gaskets ReplacementEstimate$914.68Shop/Dealer Price$994.08 - $1167.08
1991 Mercedes-Benz 300SELL6-3.0LService typeIntake Manifold Gaskets ReplacementEstimate$873.23Shop/Dealer Price$938.41 - $1100.74
Show example Mercedes-Benz 300SEL 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

(13)

Rating Summary
10
1
0
0
2
10
1
0
0
2

Robert

18 years of experience
28 reviews
Robert
18 years of experience
Mercedes-Benz 300SEL L6-3.0L - Drive Belt Tensioner - Newtown Square, Pennsylvania
Robert has a positive attitude and is very professional. He got my vintage (ancient?) Mercedes all patched up and running again. I would definitely recommend Robert without hesitation!

Bill

22 years of experience
23 reviews
Bill
22 years of experience
Mercedes-Benz SLK350 V6-3.5L - Intake Manifold Gaskets - Huntington Beach, California
Hard worker and knows what he is doing.

Christopher

28 years of experience
364 reviews
Christopher
28 years of experience
Mercedes-Benz C230 V6-2.5L - Intake Manifold Gaskets - St. Leo, Florida
Chris was professional and knowledgeable. I doubt I will go back to a garage again. This was a much better overall experience. How did I not know about mobile mechanics and Chris sooner?

Daniel

21 years of experience
52 reviews
Daniel
21 years of experience
Mercedes-Benz E350 V6-3.5L - Intake Manifold Gaskets - Chula Vista, California
Daniel is genuine, knowledgeable, and personable. He did the job in a timely manner, while keeping up good conversation, and even teaching me a few things along the way. He saved me some money, by not charging me for things that I didn't need, unlike some mechanic who try and milk every cent out of you. The next day the check light engine came on, in regards to the job that was done prior, and he was more than happy to own up and come back to solve the issue, free of charge. Danny will be my mechanic for the length of time that I remain in San Diego. I will not even bother going anywhere else because Danny is my go to. I recommend him to everyone.

Excellent Rating

(13)

Rating Summary
10
1
0
0
2
10
1
0
0
2
Number of Mercedes-Benz Intake Manifold Gaskets Replacement services completed
143+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

The Best Used Cars to Buy If You Don’t Have Kids
Buying Buying a used car is rarely a simple process, but if you don’t have kids, you have many more options than those who have to account for additional passengers. There are plenty of choices out there, depending on your...
A Buyer’s Guide to the 2012 Buick Verano
The The 2012 Buick Verano is a near luxury sedan that is affordably priced with lots of technology and comfort that comes standard. The interior is covered in leather with a rich variety of colors. The legroom in the front...
How Long Does a Manifold Temperature Sensor Last?
Keeping Keeping a car running at peak condition is a lot harder that most people think. The engine of a car is a very complicated piece of machinery that has just the right amount of fuel and air to run...

Wheel bearing going out

Hi there. A faulty wheel bearing will generally cause a growling noise similar to a chopping or cupping wear on the inner or outer edge of one or more tires. To determine this, the tire on the suspected wheel of...

I have hummer h3 that needs a raditor i have the raditor need to know your labor fee and do have to buy antifreeze and.i have spar

To obtain the requested quote, please visit YourMechanic’s radiator replacement service page (https://www.yourmechanic.com/services/radiator-replacement). Once on that page, click on "Get a Quote" and enter your vehicle information (year, make, model). You are welcome to buy your own parts and book...

i have a 2005 ford f150 i washed my truck yesterday and about 15 minutes my truck just stopped working 2 codes cameup p2106 p0720

P0720 (https://www.yourmechanic.com/article/p0720-obd-ii-trouble-code-output-speed-sensor-circuit-malfunction-by-brady-klopfer) implicates the output speed sensor circuit. P2106 (https://www.yourmechanic.com/article/p2106-obd-ii-trouble-code-throttle-actuator-control-system-forced-limited-power-by-jay-safford) may have set as a consequence of the first code. Based on the codes, a suspicion is water intrusion in any of the wiring or terminals related to the speed...

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