Mercedes-Benz C240 Front Crankshaft Seal 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

(124)

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

(124)

Front Crankshaft Seal Replacement Service

How much does a Front Crankshaft Seal Replacement cost?

On average, the cost for a Mercedes-Benz C240 Front Crankshaft Seal Replacement is $237 with $28 for parts and $209 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2003 Mercedes-Benz C240V6-2.6LService typeFront Crankshaft Seal ReplacementEstimate$309.28Shop/Dealer Price$361.86 - $432.96
2001 Mercedes-Benz C240V6-2.6LService typeFront Crankshaft Seal ReplacementEstimate$265.28Shop/Dealer Price$317.93 - $389.08
2004 Mercedes-Benz C240V6-2.6LService typeFront Crankshaft Seal ReplacementEstimate$265.28Shop/Dealer Price$317.92 - $389.07
2005 Mercedes-Benz C240V6-2.6LService typeFront Crankshaft Seal ReplacementEstimate$265.28Shop/Dealer Price$317.83 - $388.92
2002 Mercedes-Benz C240V6-2.6LService typeFront Crankshaft Seal ReplacementEstimate$265.28Shop/Dealer Price$317.98 - $389.18
Show example Mercedes-Benz C240 Front Crankshaft Seal Replacement prices

What is the Front Crankshaft Seal all about?

A number of mechanisms must work together to make your vehicle move forward. One of the most important is the crankshaft, which converts rotary into linear motion; i.e., it transforms the force created by the engine's pistons moving up and down into a force that moves in a circular motion that causes a car’s wheel to turn. Enclosed in what’s called a crankcase—the largest cavity in the engine block, just below the cylinders—the crankshaft must be completely lubricated, essentially submerged in oil, to spin nearly friction-free and do its job properly.

Consequently, there are seals located at either end of the crankshaft that allow it to spin freely and keep engine oil from escaping the engine block, as well as prevent contaminants and other debris from entering and causing damage to the mechanism. Since there are two ends of the crankshaft, there are two types of seals: the front crankshaft seal and the rear crankshaft seal, also known as the front main and rear main seals.

Keep in mind:

  • Loss of oil will eventually cause serious internal engine damage.
  • Inspect the sealing surface of the crankshaft or the crankshaft pulley (depending on the engine design) for damage when replacing the crankshaft seal.
  • Oil degrades rubber components.

How it's done:

  • The vehicle is raised and supported on jack stands
  • The crankshaft damper and timing belt is removed
  • The crankshaft seal is removed and a new one installed
  • The timing belt and cover along with crankshaft damper is reinstalled
  • The engine accessory belts are installed and the vehicle is lowered off of the jack stands

Our recommendation:

One of the most important parts of your car, crankshaft seals are typically made from a durable material, such as a synthetic rubber or silicone, designed to handle the extreme pressure and temperatures as well as the caustic chemicals in your engine oil. Because they are exposed to such abuse, main seals are subject to a lot of wear and tear. And whether you are talking a front or rear main seal, replacement is the only cure when one malfunctions.

The good news is that the seals are relatively inexpensive components. The bad news is that neither is easy to replace.

Front seal: The front seal is located behind the main pulley that drives all the belts, which is, of course, always spinning. The main pulley throws any leaking oil out in a big circle. It can get thrown up on the alternator, steering pump, belts, in short anything attached to the front of the engine and cause a real mess and eventually some serious damage. Consequently, it has to be removed along with many of the components attached to the front of the block to replace the front main seal.

Rear seal: The rear crankshaft seal is placed along with the transmission; therefore, the process of replacing it requires the removal of transmission, as well as the clutch and flywheel assembly. This is a very involved job.

What common symptoms indicate you may need to replace the Front Crankshaft Seal?

  • Oil leaking from the front crank pulley.
  • Oil dripping from the bottom of the clutch housing, where the block and transmission meet.
  • Clutch slip caused by oil spraying on the clutch.

How important is this service?

Letting either crankshaft seal continue to leak can be detrimental to your vehicle’s continued operation. Besides the maladies caused by driving around with little to no oil flowing in the engine, the faulty seal will be spread oil through the engine bay and undercarriage of your car as you drive, a mess that is difficult to clean up and can be a fire hazard. Replacing is better addressed sooner than later.

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

(124)

Rating Summary
117
4
2
1
0
117
4
2
1
0

Diego

21 years of experience
564 reviews
Diego
21 years of experience
Mercedes-Benz C240 V6-2.6L - Window Motor / Regulator Assembly Replacement (Passenger Side Front) - Peoria, Arizona
excellent; extremely knowledgeable of a 2005 mercedes benz c2404matic; when he finished putting the regulator in and got the window functioning properly despite some really tough hurdles. Its necessary to disconnect the side door airbag SRS, and once disconnected, its very difficult to erase the SRS code. Diego was able to use a new scanner to erase the "SRS" light in the cluster. I was pleasantly surprised. I spend many hours per week on MBenz forums and almost no one has had success erasing the SRS light. Now I have a functioning passenger side power window and no more SRS warning light in the instrument cluster.

Rocco

22 years of experience
302 reviews
Rocco
22 years of experience
Mercedes-Benz C240 V6-2.6L - Window is not going up or down - Riverside, California
Rocco was on it , new what to do exactly, I will definitely recommend your mechanic to my family & friends

Shane

17 years of experience
217 reviews
Shane
17 years of experience
Mercedes-Benz C240 V6-2.6L - Car is not starting - Austin, Texas
He is a hard working contingent worker and knows cars

Robert

31 years of experience
641 reviews
Robert
31 years of experience
Mercedes-Benz C240 V6-2.6L - Power steering fluid is leaking - Milpitas, California
He was courteous and very knowledgeable. He came on Saturday to diagnose the problem despite moving. He left a drip pan for my driveway that I appreciated so the power steering fluid wouldn't go on my driveway. He came back today (Mon) and finished swapping out the defective part. Now all I need to do is get reimbursed for my second alignment and I'll be a happy camper!!! Thanks, Laura

Excellent Rating

(124)

Rating Summary
117
4
2
1
0
117
4
2
1
0
Number of Mercedes-Benz C240 services completed
1364+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

2012 Honda Pilot vs. 2012 Acura RDX: Which One Should I Buy?
Sport utility vehicles are fun in the sun, sand, dirt, mud, and even in the carpool line at school. Whether you’re hauling around your family or your family of pets, these SUVs are sure to make even a drive around...
How Long Do Spring Insulators Last?
Most Most cars use a shock/strut suspension system with coiled springs to provide comfort and improve handling on the road. It’s reliable, lasts a relatively long time, and performs pretty well. It also doesn’t have some of the problems found...
P0217 OBD-II Trouble Code: Engine Overheat Condition
P0217 P0217 code definition Engine Overheating Condition What the P0217 code means The P0217 code means that the engine is or was overheating and should be turned off as soon as possible. Most engines have an engine coolant temperature sensor...

When front axle cv shaft is repaired does it come with cv boot

There are a couple basic scenarios when it comes to CV axle repair or replacement. If you have a torn boot on the vehicle, and it has not been torn for long and thus the CV joint is not yet...

I scanned my mercedes ML 250 CDI 4Matic W166 with icarsoft MB 2 scanner. Its showing trouble code U144f00. What does it mean ?

The fault being reported is within a Controller Area Network (CAN) function (wiring or device) but the code itself is generic. According to MB, the particular scanner that you are using will have an accompanying description of the code as...

Hello- My 1989 automatic, full-size K5 Blazer, was towed about 6 blocks, when the mechanic tried to drive it into a service bay, i

Hello. We will be happy to help you out. There are only a few things which can cause your transmission to not select gear. They can be bad shifter bushings, shift linkage broken or disconnected, or an internal transmission issue....

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