A Mini’s engine requires oil for it to perform optimally, but what happens when the oil starts dripping? One of the most common reasons for leakage in a Mini vehicle is a defective crankshaft seal, which can lead to problems such as low oil pressure, increased friction, and possible engine failure. Preventing this problem is relatively easy if only you can identify it before its progression to an advanced level that would require expensive repairs. Here is a guide to diagnosing and repairing a Mini crank seal leak before it gets out of hand.
How Can You Tell If The Crankshaft Seal Of Your Mini Is Faulty?
- Oil Under Your Car: One of the primary indications of a crank seal leakage is the formation of oil spills on the ground where your car is parked. If you find new oil stains, then it is high time for a crank seal change.
- Low Engine Oil Levels: If your Mini’s oil level is low and is dropping faster than usual but you do not see any sign of oil leakage from the oil pan or drain plug, it is likely that the crank seal is responsible for the leak. Check the seal to see whether you can find the problem.
- Burning Oil Smell: When the crank seal leaks, oil drips on the hot engine parts, creating a burning oil smell within or around your Mini. If the oil leaks and comes into contact with the exhaust or other hot components of the vehicle’s engine, you will see smoke coming from under the hood. This is a very sensitive problem which should be addressed as soon as possible.
- Oil leakage at the Crankshaft: If you observe oil stains around the crankshaft pulley at the lower front part of the engine, it is an indication that the crank seal is damaged.
Fixing a Mini Crank Seal Oil Leak
- Check the Source of the Leak: Before carrying out the replacement of the crankshaft seal, it is important to ensure that this is indeed the source of the leakage. Other parts that may cause an oil leak include the valve cover gasket or the oil pan gasket. The exact problem can only be diagnosed by a professional inspection.
- Replace Crankshaft Seal: One of the most effective solutions for a crank seal oil leak issue is to use a new seal to fix the problem. This involves pulling off the crankshaft pulley and then gently pulling out the old seal. When the old seal is out, you will then replace it with a new, and high-quality seal to avoid future leakage.
- Check PCV System: The PCV system should be checked and cleaned because if the PCV valve is faulty, it can cause a high pressure buildup in the engine, which can push oil past the crank seal. If your Mini’s PCV system is faulty, then it is advisable to replace it or clean it to avoid the common problem of leakage in the future.
- Choose the Correct Grade of Engine Oil: Ensure that you use the right synthetic oil that meets the Mini car manufacturer’s recommendations. Lubrication is important in maintaining the health of the seals and avoiding wear out before the expected time.
Visit The Most Reputable Auto Repair Shop In Royal Oak
Autohaus Sales and Service is a reputable 
center for Mini repairs, and we deal with a variety of problems, including crank seal replacement. If you have a problem with the oil, such as leakages, a burning smell, or a low oil light on the dashboard, we have skilled mechanics who can identify and solve the problem quickly.
We have been in this business for more than four decades, and we provide services to the community of Royal Oak, MI, as well as to the residents of Birmingham, Pleasant Ridge, Troy, Bloomfield Hills, and Huntington Woods, MI. Our team is aware of the specific requirements of a Mini Cooper and offers quality services and genuine parts. Do not wait until a small leakage of oil leads to a major problem with the engine. Contact us today to book an appointment for your Mini crank seal check.