Smart Fortwo Front Crankshaft Seal Replacement at your home or office.

Our mobile technicians offer services 7 days a week. Upfront and transparent pricing.

Get an upfront price

Service Area

Average rating from customers who
received a Front Crankshaft Seal Replacement.
Learn More

$127.65 - $207.58

Price range for all vehicles


YourMechanic Benefits

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.

Average rating from customers who
received a Front Crankshaft Seal Replacement.
Learn More


Front Crankshaft Seal Replacement Estimate for Smart Fortwo

Smart Fortwo Front Crankshaft Seal Replacement costs $142 on average.

CarServiceEstimateShop/Dealer Price
2017 Smart FortwoElectricService typeFront Crankshaft Seal ReplacementEstimate$156.19Shop/Dealer Price$181.98 - $222.25
2012 Smart FortwoL3-1.0LService typeFront Crankshaft Seal ReplacementEstimate$154.63Shop/Dealer Price$180.11 - $219.28
2014 Smart FortwoElectricService typeFront Crankshaft Seal ReplacementEstimate$163.19Shop/Dealer Price$188.06 - $227.63
2006 Smart FortwoL3-0.8L Turbo DieselService typeFront Crankshaft Seal ReplacementEstimate$173.18Shop/Dealer Price$204.12 - $248.24
2018 Smart FortwoElectricService typeFront Crankshaft Seal ReplacementEstimate$150.31Shop/Dealer Price$173.00 - $207.64
2010 Smart FortwoL3-1.0LService typeFront Crankshaft Seal ReplacementEstimate$154.63Shop/Dealer Price$175.70 - $211.55
2016 Smart FortwoElectricService typeFront Crankshaft Seal ReplacementEstimate$163.19Shop/Dealer Price$187.05 - $225.88
2008 Smart FortwoL3-1.0LService typeFront Crankshaft Seal ReplacementEstimate$147.63Shop/Dealer Price$171.93 - $210.20
Show example Smart Fortwo Front Crankshaft Seal Replacement prices

Front Crankshaft Seal Replacement Service

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

GET A QUOTE FOR YOUR CAR

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Smart mechanics

Real customer reviews from Smart owners like you.

Excellent Rating


YourMechanic Smart Fortwo Service

Average Rating

4.8/5

Number of Reviews

104

Rating Summary
95
5
1
2
1
95
5
1
2
1

Scott

32 years of experience
345 reviews
Scott
32 years of experience
Smart Fortwo - Oil Change - Broomfield, Colorado
He does a great job. This previous time he didn’t check everything 100% because I have a brand new tire on he has stated was worn down. This means he checked the others ones and not. I’m not sure what else may have been over looked. I’ll take it in just to check.

Attila

17 years of experience
427 reviews
Attila
17 years of experience
Smart Fortwo - Oil Change - Montclair, New Jersey
Fantastic job, prompt, & thorough

Ian

13 years of experience
133 reviews
Ian
13 years of experience
Smart Fortwo - Pre-purchase Car Inspection - Seattle, Washington
Ian was very thorough and explained everything, even taking pictures of the things he noticed. His scheduling was flexible and he arrived early.

Jonathan

33 years of experience
360 reviews
Jonathan
33 years of experience
Smart Fortwo - Car Air Filter Replacement - Oldsmar, Florida
At first I was a little doubtful about using these services. However, John and the Your Mechanic team put my mind to rest. My little Smart runs really good now. I appreciate the punctuality and professionalism provided. Thank you. Can I please have John Padua for my future appointments as well? Thank you!

Excellent Rating


YourMechanic Smart Fortwo Service

Average Rating

4.8/5

Number of Reviews

104

Rating Summary
95
5
1
2
1
95
5
1
2
1
Red-stars EXCELLENT RATING ON
Number of Smart Fortwo services completed
1144+
services done by our mechanics
TOTAL NUMBER OF EXPERT Smart MECHANICS
90+
experts on our platform

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.

1-800-701-6230 · hi@yourmechanic.com